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perf/core improvements and fixes: 

perf annotate:
 
   Wei Li:
 
   - Fix getting source line failure
 
 perf script:
 
   Andi Kleen:
 
   - Handle missing fields with -F +...
 
 perf data:
 
   Jiri Olsa:
 
   - Prep work to support per-cpu files in a directory.
 
 Intel PT:
 
   Adrian Hunter:
 
   - Improve thread_stack__no_call_return()
 
   - Hide x86 retpolines in thread stacks.
 
   - exported SQL viewer refactorings, new 'top calls' report..
 
   Alexander Shishkin:
 
   - Copy parent's address filter offsets on clone
 
   - Fix address filters for vmas with non-zero offset. Applies to
     ARM's CoreSight as well.
 
 python scripts:
 
   Tony Jones:
 
   - Python3 support for several 'perf script' python scripts.
 
 Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Merge tag 'perf-core-for-mingo-5.1-20190225' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core

Pull perf/core improvements and fixes from Arnaldo Carvalho de Melo:

perf annotate:

  Wei Li:

  - Fix getting source line failure

perf script:

  Andi Kleen:

  - Handle missing fields with -F +...

perf data:

  Jiri Olsa:

  - Prep work to support per-cpu files in a directory.

Intel PT:

  Adrian Hunter:

  - Improve thread_stack__no_call_return()

  - Hide x86 retpolines in thread stacks.

  - exported SQL viewer refactorings, new 'top calls' report..

  Alexander Shishkin:

  - Copy parent's address filter offsets on clone

  - Fix address filters for vmas with non-zero offset. Applies to
    ARM's CoreSight as well.

python scripts:

  Tony Jones:

  - Python3 support for several 'perf script' python scripts.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Ingo Molnar 2019-02-28 08:29:50 +01:00
parent 0a1571243d de667cce7f
commit c978b9460f
41 changed files with 1019 additions and 429 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
arch/x86/events/intel/pt.c
View File

@ -1223,7 +1223,8 @@ static int pt_event_addr_filters_validate(struct list_head *filters)
static void pt_event_addr_filters_sync(struct perf_event *event)
{
struct perf_addr_filters_head *head = perf_event_addr_filters(event);
unsigned long msr_a, msr_b, *offs = event->addr_filters_offs;
unsigned long msr_a, msr_b;
struct perf_addr_filter_range *fr = event->addr_filter_ranges;
struct pt_filters *filters = event->hw.addr_filters;
struct perf_addr_filter *filter;
int range = 0;
@ -1232,12 +1233,12 @@ static void pt_event_addr_filters_sync(struct perf_event *event)
return;
list_for_each_entry(filter, &head->list, entry) {
if (filter->path.dentry && !offs[range]) {
if (filter->path.dentry && !fr[range].start) {
msr_a = msr_b = 0;
} else {
/* apply the offset */
msr_a = filter->offset + offs[range];
msr_b = filter->size + msr_a - 1;
msr_a = fr[range].start;
msr_b = msr_a + fr[range].size - 1;
}
filters->filter[range].msr_a = msr_a;

7
drivers/hwtracing/coresight/coresight-etm-perf.c
View File

@ -433,15 +433,16 @@ static int etm_addr_filters_validate(struct list_head *filters)
static void etm_addr_filters_sync(struct perf_event *event)
{
struct perf_addr_filters_head *head = perf_event_addr_filters(event);
unsigned long start, stop, *offs = event->addr_filters_offs;
unsigned long start, stop;
struct perf_addr_filter_range *fr = event->addr_filter_ranges;
struct etm_filters *filters = event->hw.addr_filters;
struct etm_filter *etm_filter;
struct perf_addr_filter *filter;
int i = 0;
list_for_each_entry(filter, &head->list, entry) {
start = filter->offset + offs[i];
stop = start + filter->size;
start = fr[i].start;
stop = start + fr[i].size;
etm_filter = &filters->etm_filter[i];
switch (filter->action) {

7
include/linux/perf_event.h
View File

@ -495,6 +495,11 @@ struct perf_addr_filters_head {
unsigned int nr_file_filters;
};
struct perf_addr_filter_range {
unsigned long start;
unsigned long size;
};
/**
* enum perf_event_state - the states of an event:
*/
@ -671,7 +676,7 @@ struct perf_event {
/* address range filters */
struct perf_addr_filters_head addr_filters;
/* vma address array for file-based filders */
unsigned long *addr_filters_offs;
struct perf_addr_filter_range *addr_filter_ranges;
unsigned long addr_filters_gen;
void (*destroy)(struct perf_event *);

90
kernel/events/core.c
View File

@ -1255,6 +1255,7 @@ static void put_ctx(struct perf_event_context *ctx)
* perf_event_context::lock
* perf_event::mmap_mutex
* mmap_sem
* perf_addr_filters_head::lock
*
* cpu_hotplug_lock
* pmus_lock
@ -2798,7 +2799,7 @@ static int perf_event_stop(struct perf_event *event, int restart)
*
* (p1) when userspace mappings change as a result of (1) or (2) or (3) below,
* we update the addresses of corresponding vmas in
* event::addr_filters_offs array and bump the event::addr_filters_gen;
* event::addr_filter_ranges array and bump the event::addr_filters_gen;
* (p2) when an event is scheduled in (pmu::add), it calls
* perf_event_addr_filters_sync() which calls pmu::addr_filters_sync()
* if the generation has changed since the previous call.
@ -4445,7 +4446,7 @@ static void _free_event(struct perf_event *event)
perf_event_free_bpf_prog(event);
perf_addr_filters_splice(event, NULL);
kfree(event->addr_filters_offs);
kfree(event->addr_filter_ranges);
if (event->destroy)
event->destroy(event);
@ -6694,7 +6695,8 @@ static void perf_event_addr_filters_exec(struct perf_event *event, void *data)
raw_spin_lock_irqsave(&ifh->lock, flags);
list_for_each_entry(filter, &ifh->list, entry) {
if (filter->path.dentry) {
event->addr_filters_offs[count] = 0;
event->addr_filter_ranges[count].start = 0;
event->addr_filter_ranges[count].size = 0;
restart++;
}
@ -7374,28 +7376,47 @@ static bool perf_addr_filter_match(struct perf_addr_filter *filter,
return true;
}
static bool perf_addr_filter_vma_adjust(struct perf_addr_filter *filter,
struct vm_area_struct *vma,
struct perf_addr_filter_range *fr)
{
unsigned long vma_size = vma->vm_end - vma->vm_start;
unsigned long off = vma->vm_pgoff << PAGE_SHIFT;
struct file *file = vma->vm_file;
if (!perf_addr_filter_match(filter, file, off, vma_size))
return false;
if (filter->offset < off) {
fr->start = vma->vm_start;
fr->size = min(vma_size, filter->size - (off - filter->offset));
} else {
fr->start = vma->vm_start + filter->offset - off;
fr->size = min(vma->vm_end - fr->start, filter->size);
}
return true;
}
static void __perf_addr_filters_adjust(struct perf_event *event, void *data)
{
struct perf_addr_filters_head *ifh = perf_event_addr_filters(event);
struct vm_area_struct *vma = data;
unsigned long off = vma->vm_pgoff << PAGE_SHIFT, flags;
struct file *file = vma->vm_file;
struct perf_addr_filter *filter;
unsigned int restart = 0, count = 0;
unsigned long flags;
if (!has_addr_filter(event))
return;
if (!file)
if (!vma->vm_file)
return;
raw_spin_lock_irqsave(&ifh->lock, flags);
list_for_each_entry(filter, &ifh->list, entry) {
if (perf_addr_filter_match(filter, file, off,
vma->vm_end - vma->vm_start)) {
event->addr_filters_offs[count] = vma->vm_start;
if (perf_addr_filter_vma_adjust(filter, vma,
&event->addr_filter_ranges[count]))
restart++;
}
count++;
}
@ -8985,26 +9006,19 @@ static void perf_addr_filters_splice(struct perf_event *event,
* @filter; if so, adjust filter's address range.
* Called with mm::mmap_sem down for reading.
*/
static unsigned long perf_addr_filter_apply(struct perf_addr_filter *filter,
struct mm_struct *mm)
static void perf_addr_filter_apply(struct perf_addr_filter *filter,
struct mm_struct *mm,
struct perf_addr_filter_range *fr)
{
struct vm_area_struct *vma;
for (vma = mm->mmap; vma; vma = vma->vm_next) {
struct file *file = vma->vm_file;
unsigned long off = vma->vm_pgoff << PAGE_SHIFT;
unsigned long vma_size = vma->vm_end - vma->vm_start;
if (!file)
if (!vma->vm_file)
continue;
if (!perf_addr_filter_match(filter, file, off, vma_size))
continue;
return vma->vm_start;
if (perf_addr_filter_vma_adjust(filter, vma, fr))
return;
}
return 0;
}
/*
@ -9038,15 +9052,15 @@ static void perf_event_addr_filters_apply(struct perf_event *event)
raw_spin_lock_irqsave(&ifh->lock, flags);
list_for_each_entry(filter, &ifh->list, entry) {
event->addr_filters_offs[count] = 0;
event->addr_filter_ranges[count].start = 0;
event->addr_filter_ranges[count].size = 0;
/*
* Adjust base offset if the filter is associated to a binary
* that needs to be mapped:
*/
if (filter->path.dentry)
event->addr_filters_offs[count] =
perf_addr_filter_apply(filter, mm);
perf_addr_filter_apply(filter, mm, &event->addr_filter_ranges[count]);
count++;
}
@ -10320,14 +10334,28 @@ perf_event_alloc(struct perf_event_attr *attr, int cpu,
goto err_pmu;
if (has_addr_filter(event)) {
event->addr_filters_offs = kcalloc(pmu->nr_addr_filters,
sizeof(unsigned long),
GFP_KERNEL);
if (!event->addr_filters_offs) {
event->addr_filter_ranges = kcalloc(pmu->nr_addr_filters,
sizeof(struct perf_addr_filter_range),
GFP_KERNEL);
if (!event->addr_filter_ranges) {
err = -ENOMEM;
goto err_per_task;
}
/*
* Clone the parent's vma offsets: they are valid until exec()
* even if the mm is not shared with the parent.
*/
if (event->parent) {
struct perf_addr_filters_head *ifh = perf_event_addr_filters(event);
raw_spin_lock_irq(&ifh->lock);
memcpy(event->addr_filter_ranges,
event->parent->addr_filter_ranges,
pmu->nr_addr_filters * sizeof(struct perf_addr_filter_range));
raw_spin_unlock_irq(&ifh->lock);
}
/* force hw sync on the address filters */
event->addr_filters_gen = 1;
}
@ -10346,7 +10374,7 @@ perf_event_alloc(struct perf_event_attr *attr, int cpu,
return event;
err_addr_filters:
kfree(event->addr_filters_offs);
kfree(event->addr_filter_ranges);
err_per_task:
exclusive_event_destroy(event);

4
tools/perf/builtin-annotate.c
View File

@ -441,7 +441,7 @@ static int __cmd_annotate(struct perf_annotate *ann)
}
if (total_nr_samples == 0) {
ui__error("The %s file has no samples!\n", session->data->file.path);
ui__error("The %s data has no samples!\n", session->data->path);
goto out;
}
@ -578,7 +578,7 @@ int cmd_annotate(int argc, const char **argv)
if (quiet)
perf_quiet_option();
data.file.path = input_name;
data.path = input_name;
annotate.session = perf_session__new(&data, false, &annotate.tool);
if (annotate.session == NULL)

4
tools/perf/builtin-buildid-cache.c
View File

@ -416,8 +416,8 @@ int cmd_buildid_cache(int argc, const char **argv)
nsi = nsinfo__new(ns_id);
if (missing_filename) {
data.file.path = missing_filename;
data.force = force;
data.path = missing_filename;
data.force = force;
session = perf_session__new(&data, false, NULL);
if (session == NULL)

8
tools/perf/builtin-buildid-list.c
View File

@ -52,11 +52,9 @@ static int perf_session__list_build_ids(bool force, bool with_hits)
{
struct perf_session *session;
struct perf_data data = {
.file = {
.path = input_name,
},
.mode = PERF_DATA_MODE_READ,
.force = force,
.path = input_name,
.mode = PERF_DATA_MODE_READ,
.force = force,
};
symbol__elf_init();

4
tools/perf/builtin-c2c.c
View File

@ -2750,8 +2750,8 @@ static int perf_c2c__report(int argc, const char **argv)
if (!input_name || !strlen(input_name))
input_name = "perf.data";
data.file.path = input_name;
data.force = symbol_conf.force;
data.path = input_name;
data.force = symbol_conf.force;
err = setup_display(display);
if (err)

12
tools/perf/builtin-diff.c
View File

@ -708,7 +708,7 @@ static void data__fprintf(void)
data__for_each_file(i, d)
fprintf(stdout, "# [%d] %s %s\n",
d->idx, d->data.file.path,
d->idx, d->data.path,
!d->idx ? "(Baseline)" : "");
fprintf(stdout, "#\n");
@ -779,14 +779,14 @@ static int __cmd_diff(void)
data__for_each_file(i, d) {
d->session = perf_session__new(&d->data, false, &tool);
if (!d->session) {
pr_err("Failed to open %s\n", d->data.file.path);
pr_err("Failed to open %s\n", d->data.path);
ret = -1;
goto out_delete;
}
ret = perf_session__process_events(d->session);
if (ret) {
pr_err("Failed to process %s\n", d->data.file.path);
pr_err("Failed to process %s\n", d->data.path);
goto out_delete;
}
@ -1289,9 +1289,9 @@ static int data_init(int argc, const char **argv)
data__for_each_file(i, d) {
struct perf_data *data = &d->data;
data->file.path = use_default ? defaults[i] : argv[i];
data->mode = PERF_DATA_MODE_READ,
data->force = force,
data->path = use_default ? defaults[i] : argv[i];
data->mode = PERF_DATA_MODE_READ,
data->force = force,
d->idx = i;
}

4
tools/perf/builtin-evlist.c
View File

@ -23,9 +23,7 @@ static int __cmd_evlist(const char *file_name, struct perf_attr_details *details
struct perf_session *session;
struct perf_evsel *pos;
struct perf_data data = {
.file = {
.path = file_name,
},
.path = file_name,
.mode = PERF_DATA_MODE_READ,
.force = details->force,
};

10
tools/perf/builtin-inject.c
View File

@ -770,10 +770,8 @@ int cmd_inject(int argc, const char **argv)
.input_name = "-",
.samples = LIST_HEAD_INIT(inject.samples),
.output = {
.file = {
.path = "-",
},
.mode = PERF_DATA_MODE_WRITE,
.path = "-",
.mode = PERF_DATA_MODE_WRITE,
},
};
struct perf_data data = {
@ -786,7 +784,7 @@ int cmd_inject(int argc, const char **argv)
"Inject build-ids into the output stream"),
OPT_STRING('i', "input", &inject.input_name, "file",
"input file name"),
OPT_STRING('o', "output", &inject.output.file.path, "file",
OPT_STRING('o', "output", &inject.output.path, "file",
"output file name"),
OPT_BOOLEAN('s', "sched-stat", &inject.sched_stat,
"Merge sched-stat and sched-switch for getting events "
@ -834,7 +832,7 @@ int cmd_inject(int argc, const char **argv)
inject.tool.ordered_events = inject.sched_stat;
data.file.path = inject.input_name;
data.path = inject.input_name;
inject.session = perf_session__new(&data, true, &inject.tool);
if (inject.session == NULL)
return -1;

2
tools/perf/builtin-kmem.c
View File

@ -1949,7 +1949,7 @@ int cmd_kmem(int argc, const char **argv)
return __cmd_record(argc, argv);
}
data.file.path = input_name;
data.path = input_name;
kmem_session = session = perf_session__new(&data, false, &perf_kmem);
if (session == NULL)

8
tools/perf/builtin-kvm.c
View File

@ -1080,11 +1080,9 @@ static int read_events(struct perf_kvm_stat *kvm)
.ordered_events = true,
};
struct perf_data file = {
.file = {
.path = kvm->file_name,
},
.mode = PERF_DATA_MODE_READ,
.force = kvm->force,
.path = kvm->file_name,
.mode = PERF_DATA_MODE_READ,
.force = kvm->force,
};
kvm->tool = eops;

8
tools/perf/builtin-lock.c
View File

@ -866,11 +866,9 @@ static int __cmd_report(bool display_info)
.ordered_events = true,
};
struct perf_data data = {
.file = {
.path = input_name,
},
.mode = PERF_DATA_MODE_READ,
.force = force,
.path = input_name,
.mode = PERF_DATA_MODE_READ,
.force = force,
};
session = perf_session__new(&data, false, &eops);

8
tools/perf/builtin-mem.c
View File

@ -239,11 +239,9 @@ static int process_sample_event(struct perf_tool *tool,
static int report_raw_events(struct perf_mem *mem)
{
struct perf_data data = {
.file = {
.path = input_name,
},
.mode = PERF_DATA_MODE_READ,
.force = mem->force,
.path = input_name,
.mode = PERF_DATA_MODE_READ,
.force = mem->force,
};
int ret;
struct perf_session *session = perf_session__new(&data, false,

11
tools/perf/builtin-record.c
View File

@ -660,10 +660,9 @@ static int process_sample_event(struct perf_tool *tool,
static int process_buildids(struct record *rec)
{
struct perf_data *data = &rec->data;
struct perf_session *session = rec->session;
if (data->size == 0)
if (perf_data__size(&rec->data) == 0)
return 0;
/*
@ -851,7 +850,7 @@ record__finish_output(struct record *rec)
return;
rec->session->header.data_size += rec->bytes_written;
data->size = lseek(perf_data__fd(data), 0, SEEK_CUR);
data->file.size = lseek(perf_data__fd(data), 0, SEEK_CUR);
if (!rec->no_buildid) {
process_buildids(rec);
@ -919,7 +918,7 @@ record__switch_output(struct record *rec, bool at_exit)
if (!quiet)
fprintf(stderr, "[ perf record: Dump %s.%s ]\n",
data->file.path, timestamp);
data->path, timestamp);
/* Output tracking events */
if (!at_exit) {
@ -1462,7 +1461,7 @@ out_child:
fprintf(stderr, "[ perf record: Captured and wrote %.3f MB %s%s%s ]\n",
perf_data__size(data) / 1024.0 / 1024.0,
data->file.path, postfix, samples);
data->path, postfix, samples);
}
out_delete_session:
@ -1863,7 +1862,7 @@ static struct option __record_options[] = {
OPT_STRING('C', "cpu", &record.opts.target.cpu_list, "cpu",
"list of cpus to monitor"),
OPT_U64('c', "count", &record.opts.user_interval, "event period to sample"),
OPT_STRING('o', "output", &record.data.file.path, "file",
OPT_STRING('o', "output", &record.data.path, "file",
"output file name"),
OPT_BOOLEAN_SET('i', "no-inherit", &record.opts.no_inherit,
&record.opts.no_inherit_set,

6
tools/perf/builtin-report.c
View File

@ -899,7 +899,7 @@ static int __cmd_report(struct report *rep)
rep->nr_entries += evsel__hists(pos)->nr_entries;
if (rep->nr_entries == 0) {
ui__error("The %s file has no samples!\n", data->file.path);
ui__error("The %s data has no samples!\n", data->path);
return 0;
}
@ -1207,8 +1207,8 @@ int cmd_report(int argc, const char **argv)
input_name = "perf.data";
}
data.file.path = input_name;
data.force = symbol_conf.force;
data.path = input_name;
data.force = symbol_conf.force;
repeat:
session = perf_session__new(&data, false, &report.tool);

16
tools/perf/builtin-sched.c
View File

@ -1785,11 +1785,9 @@ static int perf_sched__read_events(struct perf_sched *sched)
};
struct perf_session *session;
struct perf_data data = {
.file = {
.path = input_name,
},
.mode = PERF_DATA_MODE_READ,
.force = sched->force,
.path = input_name,
.mode = PERF_DATA_MODE_READ,
.force = sched->force,
};
int rc = -1;
@ -2958,11 +2956,9 @@ static int perf_sched__timehist(struct perf_sched *sched)
{ "sched:sched_migrate_task", timehist_migrate_task_event, },
};
struct perf_data data = {
.file = {
.path = input_name,
},
.mode = PERF_DATA_MODE_READ,
.force = sched->force,
.path = input_name,
.mode = PERF_DATA_MODE_READ,
.force = sched->force,
};
struct perf_session *session;

22
tools/perf/builtin-script.c
View File

@ -149,6 +149,7 @@ static struct {
unsigned int print_ip_opts;
u64 fields;
u64 invalid_fields;
u64 user_set_fields;
} output[OUTPUT_TYPE_MAX] = {
[PERF_TYPE_HARDWARE] = {
@ -345,7 +346,7 @@ static int perf_evsel__do_check_stype(struct perf_evsel *evsel,
if (attr->sample_type & sample_type)
return 0;
if (output[type].user_set) {
if (output[type].user_set_fields & field) {
if (allow_user_set)
return 0;
evname = perf_evsel__name(evsel);
@ -2632,10 +2633,13 @@ parse:
pr_warning("\'%s\' not valid for %s events. Ignoring.\n",
all_output_options[i].str, event_type(j));
} else {
if (change == REMOVE)
if (change == REMOVE) {
output[j].fields &= ~all_output_options[i].field;
else
output[j].user_set_fields &= ~all_output_options[i].field;
} else {
output[j].fields |= all_output_options[i].field;
output[j].user_set_fields |= all_output_options[i].field;
}
output[j].user_set = true;
output[j].wildcard_set = true;
}
@ -2951,10 +2955,8 @@ int find_scripts(char **scripts_array, char **scripts_path_array)
DIR *scripts_dir, *lang_dir;
struct perf_session *session;
struct perf_data data = {
.file = {
.path = input_name,
},
.mode = PERF_DATA_MODE_READ,
.path = input_name,
.mode = PERF_DATA_MODE_READ,
};
char *temp;
int i = 0;
@ -3427,8 +3429,8 @@ int cmd_script(int argc, const char **argv)
argc = parse_options_subcommand(argc, argv, options, script_subcommands, script_usage,
PARSE_OPT_STOP_AT_NON_OPTION);
data.file.path = input_name;
data.force = symbol_conf.force;
data.path = input_name;
data.force = symbol_conf.force;
if (argc > 1 && !strncmp(argv[0], "rec", strlen("rec"))) {
rec_script_path = get_script_path(argv[1], RECORD_SUFFIX);
@ -3654,7 +3656,7 @@ int cmd_script(int argc, const char **argv)
goto out_delete;
}
input = open(data.file.path, O_RDONLY); /* input_name */
input = open(data.path, O_RDONLY); /* input_name */
if (input < 0) {
err = -errno;
perror("failed to open file");

6
tools/perf/builtin-stat.c
View File

@ -1322,7 +1322,7 @@ static int __cmd_record(int argc, const char **argv)
PARSE_OPT_STOP_AT_NON_OPTION);
if (output_name)
data->file.path = output_name;
data->path = output_name;
if (stat_config.run_count != 1 || forever) {
pr_err("Cannot use -r option with perf stat record.\n");
@ -1523,8 +1523,8 @@ static int __cmd_report(int argc, const char **argv)
input_name = "perf.data";
}
perf_stat.data.file.path = input_name;
perf_stat.data.mode = PERF_DATA_MODE_READ;
perf_stat.data.path = input_name;
perf_stat.data.mode = PERF_DATA_MODE_READ;
session = perf_session__new(&perf_stat.data, false, &perf_stat.tool);
if (session == NULL)

8
tools/perf/builtin-timechart.c
View File

@ -1602,11 +1602,9 @@ static int __cmd_timechart(struct timechart *tchart, const char *output_name)
{ "syscalls:sys_exit_select", process_exit_poll },
};
struct perf_data data = {
.file = {
.path = input_name,
},
.mode = PERF_DATA_MODE_READ,
.force = tchart->force,
.path = input_name,
.mode = PERF_DATA_MODE_READ,
.force = tchart->force,
};
struct perf_session *session = perf_session__new(&data, false,

8
tools/perf/builtin-trace.c
View File

@ -3154,11 +3154,9 @@ static int trace__replay(struct trace *trace)
{ "probe:vfs_getname", trace__vfs_getname, },
};
struct perf_data data = {
.file = {
.path = input_name,
},
.mode = PERF_DATA_MODE_READ,
.force = trace->force,
.path = input_name,
.mode = PERF_DATA_MODE_READ,
.force = trace->force,
};
struct perf_session *session;
struct perf_evsel *evsel;

510
tools/perf/scripts/python/exported-sql-viewer.py
View File

@ -1,3 +1,4 @@
#!/usr/bin/env python2
# SPDX-License-Identifier: GPL-2.0
# exported-sql-viewer.py: view data from sql database
# Copyright (c) 2014-2018, Intel Corporation.
@ -1397,18 +1398,28 @@ class BranchModel(TreeModel):
def HasMoreRecords(self):
return self.more
# Report Variables
class ReportVars():
def __init__(self, name = "", where_clause = "", limit = ""):
self.name = name
self.where_clause = where_clause
self.limit = limit
def UniqueId(self):
return str(self.where_clause + ";" + self.limit)
# Branch window
class BranchWindow(QMdiSubWindow):
def __init__(self, glb, event_id, name, where_clause, parent=None):
def __init__(self, glb, event_id, report_vars, parent=None):
super(BranchWindow, self).__init__(parent)
model_name = "Branch Events " + str(event_id)
if len(where_clause):
model_name = where_clause + " " + model_name
model_name = "Branch Events " + str(event_id) + " " + report_vars.UniqueId()
self.model = LookupCreateModel(model_name, lambda: BranchModel(glb, event_id, where_clause))
self.model = LookupCreateModel(model_name, lambda: BranchModel(glb, event_id, report_vars.where_clause))
self.view = QTreeView()
self.view.setUniformRowHeights(True)
@ -1426,7 +1437,7 @@ class BranchWindow(QMdiSubWindow):
self.setWidget(self.vbox.Widget())
AddSubWindow(glb.mainwindow.mdi_area, self, name + " Branch Events")
AddSubWindow(glb.mainwindow.mdi_area, self, report_vars.name + " Branch Events")
def ResizeColumnToContents(self, column, n):
# Using the view's resizeColumnToContents() here is extrememly slow
@ -1471,47 +1482,134 @@ class BranchWindow(QMdiSubWindow):
else:
self.find_bar.NotFound()
# Dialog data item converted and validated using a SQL table
# Line edit data item
class SQLTableDialogDataItem():
class LineEditDataItem(object):
def __init__(self, glb, label, placeholder_text, table_name, match_column, column_name1, column_name2, parent):
def __init__(self, glb, label, placeholder_text, parent, id = "", default = ""):
self.glb = glb
self.label = label
self.placeholder_text = placeholder_text
self.table_name = table_name
self.match_column = match_column
self.column_name1 = column_name1
self.column_name2 = column_name2
self.parent = parent
self.id = id
self.value = ""
self.value = default
self.widget = QLineEdit()
self.widget = QLineEdit(default)
self.widget.editingFinished.connect(self.Validate)
self.widget.textChanged.connect(self.Invalidate)
self.red = False
self.error = ""
self.validated = True
self.last_id = 0
self.first_time = 0
self.last_time = 2 ** 64
if self.table_name == "<timeranges>":
query = QSqlQuery(self.glb.db)
QueryExec(query, "SELECT id, time FROM samples ORDER BY id DESC LIMIT 1")
if query.next():
self.last_id = int(query.value(0))
self.last_time = int(query.value(1))
QueryExec(query, "SELECT time FROM samples WHERE time != 0 ORDER BY id LIMIT 1")
if query.next():
self.first_time = int(query.value(0))
if placeholder_text:
placeholder_text += ", between " + str(self.first_time) + " and " + str(self.last_time)
if placeholder_text:
self.widget.setPlaceholderText(placeholder_text)
def TurnTextRed(self):
if not self.red:
palette = QPalette()
palette.setColor(QPalette.Text,Qt.red)
self.widget.setPalette(palette)
self.red = True
def TurnTextNormal(self):
if self.red:
palette = QPalette()
self.widget.setPalette(palette)
self.red = False
def InvalidValue(self, value):
self.value = ""
self.TurnTextRed()
self.error = self.label + " invalid value '" + value + "'"
self.parent.ShowMessage(self.error)
def Invalidate(self):
self.validated = False
def DoValidate(self, input_string):
self.value = input_string.strip()
def Validate(self):
self.validated = True
self.error = ""
self.TurnTextNormal()
self.parent.ClearMessage()
input_string = self.widget.text()
if not len(input_string.strip()):
self.value = ""
return
self.DoValidate(input_string)
def IsValid(self):
if not self.validated:
self.Validate()
if len(self.error):
self.parent.ShowMessage(self.error)
return False
return True
def IsNumber(self, value):
try:
x = int(value)
except:
x = 0
return str(x) == value
# Non-negative integer ranges dialog data item
class NonNegativeIntegerRangesDataItem(LineEditDataItem):
def __init__(self, glb, label, placeholder_text, column_name, parent):
super(NonNegativeIntegerRangesDataItem, self).__init__(glb, label, placeholder_text, parent)
self.column_name = column_name
def DoValidate(self, input_string):
singles = []
ranges = []
for value in [x.strip() for x in input_string.split(",")]:
if "-" in value:
vrange = value.split("-")
if len(vrange) != 2 or not self.IsNumber(vrange[0]) or not self.IsNumber(vrange[1]):
return self.InvalidValue(value)
ranges.append(vrange)
else:
if not self.IsNumber(value):
return self.InvalidValue(value)
singles.append(value)
ranges = [("(" + self.column_name + " >= " + r[0] + " AND " + self.column_name + " <= " + r[1] + ")") for r in ranges]
if len(singles):
ranges.append(self.column_name + " IN (" + ",".join(singles) + ")")
self.value = " OR ".join(ranges)
# Positive integer dialog data item
class PositiveIntegerDataItem(LineEditDataItem):
def __init__(self, glb, label, placeholder_text, parent, id = "", default = ""):
super(PositiveIntegerDataItem, self).__init__(glb, label, placeholder_text, parent, id, default)
def DoValidate(self, input_string):
if not self.IsNumber(input_string.strip()):
return self.InvalidValue(input_string)
value = int(input_string.strip())
if value <= 0:
return self.InvalidValue(input_string)
self.value = str(value)
# Dialog data item converted and validated using a SQL table
class SQLTableDataItem(LineEditDataItem):
def __init__(self, glb, label, placeholder_text, table_name, match_column, column_name1, column_name2, parent):
super(SQLTableDataItem, self).__init__(glb, label, placeholder_text, parent)
self.table_name = table_name
self.match_column = match_column
self.column_name1 = column_name1
self.column_name2 = column_name2
def ValueToIds(self, value):
ids = []
query = QSqlQuery(self.glb.db)
@ -1522,6 +1620,42 @@ class SQLTableDialogDataItem():
ids.append(str(query.value(0)))
return ids
def DoValidate(self, input_string):
all_ids = []
for value in [x.strip() for x in input_string.split(",")]:
ids = self.ValueToIds(value)
if len(ids):
all_ids.extend(ids)
else:
return self.InvalidValue(value)
self.value = self.column_name1 + " IN (" + ",".join(all_ids) + ")"
if self.column_name2:
self.value = "( " + self.value + " OR " + self.column_name2 + " IN (" + ",".join(all_ids) + ") )"
# Sample time ranges dialog data item converted and validated using 'samples' SQL table
class SampleTimeRangesDataItem(LineEditDataItem):
def __init__(self, glb, label, placeholder_text, column_name, parent):
self.column_name = column_name
self.last_id = 0
self.first_time = 0
self.last_time = 2 ** 64
query = QSqlQuery(glb.db)
QueryExec(query, "SELECT id, time FROM samples ORDER BY id DESC LIMIT 1")
if query.next():
self.last_id = int(query.value(0))
self.last_time = int(query.value(1))
QueryExec(query, "SELECT time FROM samples WHERE time != 0 ORDER BY id LIMIT 1")
if query.next():
self.first_time = int(query.value(0))
if placeholder_text:
placeholder_text += ", between " + str(self.first_time) + " and " + str(self.last_time)
super(SampleTimeRangesDataItem, self).__init__(glb, label, placeholder_text, parent)
def IdBetween(self, query, lower_id, higher_id, order):
QueryExec(query, "SELECT id FROM samples WHERE id > " + str(lower_id) + " AND id < " + str(higher_id) + " ORDER BY id " + order + " LIMIT 1")
if query.next():
@ -1559,7 +1693,6 @@ class SQLTableDialogDataItem():
return str(lower_id)
def ConvertRelativeTime(self, val):
print "val ", val
mult = 1
suffix = val[-2:]
if suffix == "ms":
@ -1581,29 +1714,23 @@ class SQLTableDialogDataItem():
return str(val)
def ConvertTimeRange(self, vrange):
print "vrange ", vrange
if vrange[0] == "":
vrange[0] = str(self.first_time)
if vrange[1] == "":
vrange[1] = str(self.last_time)
vrange[0] = self.ConvertRelativeTime(vrange[0])
vrange[1] = self.ConvertRelativeTime(vrange[1])
print "vrange2 ", vrange
if not self.IsNumber(vrange[0]) or not self.IsNumber(vrange[1]):
return False
print "ok1"
beg_range = max(int(vrange[0]), self.first_time)
end_range = min(int(vrange[1]), self.last_time)
if beg_range > self.last_time or end_range < self.first_time:
return False
print "ok2"
vrange[0] = self.BinarySearchTime(0, self.last_id, beg_range, True)
vrange[1] = self.BinarySearchTime(1, self.last_id + 1, end_range, False)
print "vrange3 ", vrange
return True
def AddTimeRange(self, value, ranges):
print "value ", value
n = value.count("-")
if n == 1:
pass
@ -1621,111 +1748,31 @@ class SQLTableDialogDataItem():
return True
return False
def InvalidValue(self, value):
self.value = ""
palette = QPalette()
palette.setColor(QPalette.Text,Qt.red)
self.widget.setPalette(palette)
self.red = True
self.error = self.label + " invalid value '" + value + "'"
self.parent.ShowMessage(self.error)
def DoValidate(self, input_string):
ranges = []
for value in [x.strip() for x in input_string.split(",")]:
if not self.AddTimeRange(value, ranges):
return self.InvalidValue(value)
ranges = [("(" + self.column_name + " >= " + r[0] + " AND " + self.column_name + " <= " + r[1] + ")") for r in ranges]
self.value = " OR ".join(ranges)
def IsNumber(self, value):
try:
x = int(value)
except:
x = 0
return str(x) == value
# Report Dialog Base
def Invalidate(self):
self.validated = False
class ReportDialogBase(QDialog):
def Validate(self):
input_string = self.widget.text()
self.validated = True
if self.red:
palette = QPalette()
self.widget.setPalette(palette)
self.red = False
if not len(input_string.strip()):
self.error = ""
self.value = ""
return
if self.table_name == "<timeranges>":
ranges = []
for value in [x.strip() for x in input_string.split(",")]:
if not self.AddTimeRange(value, ranges):
return self.InvalidValue(value)
ranges = [("(" + self.column_name1 + " >= " + r[0] + " AND " + self.column_name1 + " <= " + r[1] + ")") for r in ranges]
self.value = " OR ".join(ranges)
elif self.table_name == "<ranges>":
singles = []
ranges = []
for value in [x.strip() for x in input_string.split(",")]:
if "-" in value:
vrange = value.split("-")
if len(vrange) != 2 or not self.IsNumber(vrange[0]) or not self.IsNumber(vrange[1]):
return self.InvalidValue(value)
ranges.append(vrange)
else:
if not self.IsNumber(value):
return self.InvalidValue(value)
singles.append(value)
ranges = [("(" + self.column_name1 + " >= " + r[0] + " AND " + self.column_name1 + " <= " + r[1] + ")") for r in ranges]
if len(singles):
ranges.append(self.column_name1 + " IN (" + ",".join(singles) + ")")
self.value = " OR ".join(ranges)
elif self.table_name:
all_ids = []
for value in [x.strip() for x in input_string.split(",")]:
ids = self.ValueToIds(value)
if len(ids):
all_ids.extend(ids)
else:
return self.InvalidValue(value)
self.value = self.column_name1 + " IN (" + ",".join(all_ids) + ")"
if self.column_name2:
self.value = "( " + self.value + " OR " + self.column_name2 + " IN (" + ",".join(all_ids) + ") )"
else:
self.value = input_string.strip()
self.error = ""
self.parent.ClearMessage()
def IsValid(self):
if not self.validated:
self.Validate()
if len(self.error):
self.parent.ShowMessage(self.error)
return False
return True
# Selected branch report creation dialog
class SelectedBranchDialog(QDialog):
def __init__(self, glb, parent=None):
super(SelectedBranchDialog, self).__init__(parent)
def __init__(self, glb, title, items, partial, parent=None):
super(ReportDialogBase, self).__init__(parent)
self.glb = glb
self.name = ""
self.where_clause = ""
self.report_vars = ReportVars()
self.setWindowTitle("Selected Branches")
self.setWindowTitle(title)
self.setMinimumWidth(600)
items = (
("Report name:", "Enter a name to appear in the window title bar", "", "", "", ""),
("Time ranges:", "Enter time ranges", "<timeranges>", "", "samples.id", ""),
("CPUs:", "Enter CPUs or ranges e.g. 0,5-6", "<ranges>", "", "cpu", ""),
("Commands:", "Only branches with these commands will be included", "comms", "comm", "comm_id", ""),
("PIDs:", "Only branches with these process IDs will be included", "threads", "pid", "thread_id", ""),
("TIDs:", "Only branches with these thread IDs will be included", "threads", "tid", "thread_id", ""),
("DSOs:", "Only branches with these DSOs will be included", "dsos", "short_name", "samples.dso_id", "to_dso_id"),
("Symbols:", "Only branches with these symbols will be included", "symbols", "name", "symbol_id", "to_symbol_id"),
("Raw SQL clause: ", "Enter a raw SQL WHERE clause", "", "", "", ""),
)
self.data_items = [SQLTableDialogDataItem(glb, *x, parent=self) for x in items]
self.data_items = [x(glb, self) for x in items]
self.partial = partial
self.grid = QGridLayout()
@ -1757,23 +1804,28 @@ class SelectedBranchDialog(QDialog):
self.setLayout(self.vbox);
def Ok(self):
self.name = self.data_items[0].value
if not self.name:
vars = self.report_vars
for d in self.data_items:
if d.id == "REPORTNAME":
vars.name = d.value
if not vars.name:
self.ShowMessage("Report name is required")
return
for d in self.data_items:
if not d.IsValid():
return
for d in self.data_items[1:]:
if len(d.value):
if len(self.where_clause):
self.where_clause += " AND "
self.where_clause += d.value
if len(self.where_clause):
self.where_clause = " AND ( " + self.where_clause + " ) "
else:
self.ShowMessage("No selection")
return
if d.id == "LIMIT":
vars.limit = d.value
elif len(d.value):
if len(vars.where_clause):
vars.where_clause += " AND "
vars.where_clause += d.value
if len(vars.where_clause):
if self.partial:
vars.where_clause = " AND ( " + vars.where_clause + " ) "
else:
vars.where_clause = " WHERE " + vars.where_clause + " "
self.accept()
def ShowMessage(self, msg):
@ -1782,6 +1834,23 @@ class SelectedBranchDialog(QDialog):
def ClearMessage(self):
self.status.setText("")
# Selected branch report creation dialog
class SelectedBranchDialog(ReportDialogBase):
def __init__(self, glb, parent=None):
title = "Selected Branches"
items = (lambda g, p: LineEditDataItem(g, "Report name:", "Enter a name to appear in the window title bar", p, "REPORTNAME"),
lambda g, p: SampleTimeRangesDataItem(g, "Time ranges:", "Enter time ranges", "samples.id", p),
lambda g, p: NonNegativeIntegerRangesDataItem(g, "CPUs:", "Enter CPUs or ranges e.g. 0,5-6", "cpu", p),
lambda g, p: SQLTableDataItem(g, "Commands:", "Only branches with these commands will be included", "comms", "comm", "comm_id", "", p),
lambda g, p: SQLTableDataItem(g, "PIDs:", "Only branches with these process IDs will be included", "threads", "pid", "thread_id", "", p),
lambda g, p: SQLTableDataItem(g, "TIDs:", "Only branches with these thread IDs will be included", "threads", "tid", "thread_id", "", p),
lambda g, p: SQLTableDataItem(g, "DSOs:", "Only branches with these DSOs will be included", "dsos", "short_name", "samples.dso_id", "to_dso_id", p),
lambda g, p: SQLTableDataItem(g, "Symbols:", "Only branches with these symbols will be included", "symbols", "name", "symbol_id", "to_symbol_id", p),
lambda g, p: LineEditDataItem(g, "Raw SQL clause: ", "Enter a raw SQL WHERE clause", p))
super(SelectedBranchDialog, self).__init__(glb, title, items, True, parent)
# Event list
def GetEventList(db):
@ -1792,6 +1861,16 @@ def GetEventList(db):
events.append(query.value(0))
return events
# Is a table selectable
def IsSelectable(db, table):
query = QSqlQuery(db)
try:
QueryExec(query, "SELECT * FROM " + table + " LIMIT 1")
except:
return False
return True
# SQL data preparation
def SQLTableDataPrep(query, count):
@ -1817,12 +1896,13 @@ class SQLTableModel(TableModel):
progress = Signal(object)
def __init__(self, glb, sql, column_count, parent=None):
def __init__(self, glb, sql, column_headers, parent=None):
super(SQLTableModel, self).__init__(parent)
self.glb = glb
self.more = True
self.populated = 0
self.fetcher = SQLFetcher(glb, sql, lambda x, y=column_count: SQLTableDataPrep(x, y), self.AddSample)
self.column_headers = column_headers
self.fetcher = SQLFetcher(glb, sql, lambda x, y=len(column_headers): SQLTableDataPrep(x, y), self.AddSample)
self.fetcher.done.connect(self.Update)
self.fetcher.Fetch(glb_chunk_sz)
@ -1860,6 +1940,12 @@ class SQLTableModel(TableModel):
def HasMoreRecords(self):
return self.more
def columnCount(self, parent=None):
return len(self.column_headers)
def columnHeader(self, column):
return self.column_headers[column]
# SQL automatic table data model
class SQLAutoTableModel(SQLTableModel):
@ -1869,12 +1955,12 @@ class SQLAutoTableModel(SQLTableModel):
if table_name == "comm_threads_view":
# For now, comm_threads_view has no id column
sql = "SELECT * FROM " + table_name + " WHERE comm_id > $$last_id$$ ORDER BY comm_id LIMIT " + str(glb_chunk_sz)
self.column_headers = []
column_headers = []
query = QSqlQuery(glb.db)
if glb.dbref.is_sqlite3:
QueryExec(query, "PRAGMA table_info(" + table_name + ")")
while query.next():
self.column_headers.append(query.value(1))
column_headers.append(query.value(1))
if table_name == "sqlite_master":
sql = "SELECT * FROM " + table_name
else:
@ -1887,14 +1973,8 @@ class SQLAutoTableModel(SQLTableModel):
schema = "public"
QueryExec(query, "SELECT column_name FROM information_schema.columns WHERE table_schema = '" + schema + "' and table_name = '" + select_table_name + "'")
while query.next():
self.column_headers.append(query.value(0))
super(SQLAutoTableModel, self).__init__(glb, sql, len(self.column_headers), parent)
def columnCount(self, parent=None):
return len(self.column_headers)
def columnHeader(self, column):
return self.column_headers[column]
column_headers.append(query.value(0))
super(SQLAutoTableModel, self).__init__(glb, sql, column_headers, parent)
# Base class for custom ResizeColumnsToContents
@ -1997,6 +2077,103 @@ def GetTableList(glb):
tables.append("information_schema.columns")
return tables
# Top Calls data model
class TopCallsModel(SQLTableModel):
def __init__(self, glb, report_vars, parent=None):
text = ""
if not glb.dbref.is_sqlite3:
text = "::text"
limit = ""
if len(report_vars.limit):
limit = " LIMIT " + report_vars.limit
sql = ("SELECT comm, pid, tid, name,"
" CASE"
" WHEN (short_name = '[kernel.kallsyms]') THEN '[kernel]'" + text +
" ELSE short_name"
" END AS dso,"
" call_time, return_time, (return_time - call_time) AS elapsed_time, branch_count, "
" CASE"
" WHEN (calls.flags = 1) THEN 'no call'" + text +
" WHEN (calls.flags = 2) THEN 'no return'" + text +
" WHEN (calls.flags = 3) THEN 'no call/return'" + text +
" ELSE ''" + text +
" END AS flags"
" FROM calls"
" INNER JOIN call_paths ON calls.call_path_id = call_paths.id"
" INNER JOIN symbols ON call_paths.symbol_id = symbols.id"
" INNER JOIN dsos ON symbols.dso_id = dsos.id"
" INNER JOIN comms ON calls.comm_id = comms.id"
" INNER JOIN threads ON calls.thread_id = threads.id" +
report_vars.where_clause +
" ORDER BY elapsed_time DESC" +
limit
)
column_headers = ("Command", "PID", "TID", "Symbol", "Object", "Call Time", "Return Time", "Elapsed Time (ns)", "Branch Count", "Flags")
self.alignment = (Qt.AlignLeft, Qt.AlignLeft, Qt.AlignLeft, Qt.AlignLeft, Qt.AlignLeft, Qt.AlignLeft, Qt.AlignLeft, Qt.AlignRight, Qt.AlignRight, Qt.AlignLeft)
super(TopCallsModel, self).__init__(glb, sql, column_headers, parent)
def columnAlignment(self, column):
return self.alignment[column]
# Top Calls report creation dialog
class TopCallsDialog(ReportDialogBase):
def __init__(self, glb, parent=None):
title = "Top Calls by Elapsed Time"
items = (lambda g, p: LineEditDataItem(g, "Report name:", "Enter a name to appear in the window title bar", p, "REPORTNAME"),
lambda g, p: SQLTableDataItem(g, "Commands:", "Only calls with these commands will be included", "comms", "comm", "comm_id", "", p),
lambda g, p: SQLTableDataItem(g, "PIDs:", "Only calls with these process IDs will be included", "threads", "pid", "thread_id", "", p),
lambda g, p: SQLTableDataItem(g, "TIDs:", "Only calls with these thread IDs will be included", "threads", "tid", "thread_id", "", p),
lambda g, p: SQLTableDataItem(g, "DSOs:", "Only calls with these DSOs will be included", "dsos", "short_name", "dso_id", "", p),
lambda g, p: SQLTableDataItem(g, "Symbols:", "Only calls with these symbols will be included", "symbols", "name", "symbol_id", "", p),
lambda g, p: LineEditDataItem(g, "Raw SQL clause: ", "Enter a raw SQL WHERE clause", p),
lambda g, p: PositiveIntegerDataItem(g, "Record limit:", "Limit selection to this number of records", p, "LIMIT", "100"))
super(TopCallsDialog, self).__init__(glb, title, items, False, parent)
# Top Calls window
class TopCallsWindow(QMdiSubWindow, ResizeColumnsToContentsBase):
def __init__(self, glb, report_vars, parent=None):
super(TopCallsWindow, self).__init__(parent)
self.data_model = LookupCreateModel("Top Calls " + report_vars.UniqueId(), lambda: TopCallsModel(glb, report_vars))
self.model = self.data_model
self.view = QTableView()
self.view.setModel(self.model)
self.view.setEditTriggers(QAbstractItemView.NoEditTriggers)
self.view.verticalHeader().setVisible(False)
self.ResizeColumnsToContents()
self.find_bar = FindBar(self, self, True)
self.finder = ChildDataItemFinder(self.model)
self.fetch_bar = FetchMoreRecordsBar(self.data_model, self)
self.vbox = VBox(self.view, self.find_bar.Widget(), self.fetch_bar.Widget())
self.setWidget(self.vbox.Widget())
AddSubWindow(glb.mainwindow.mdi_area, self, report_vars.name)
def Find(self, value, direction, pattern, context):
self.view.setFocus()
self.find_bar.Busy()
self.finder.Find(value, direction, pattern, context, self.FindDone)
def FindDone(self, row):
self.find_bar.Idle()
if row >= 0:
self.view.setCurrentIndex(self.model.index(row, 0, QModelIndex()))
else:
self.find_bar.NotFound()
# Action Definition
def CreateAction(label, tip, callback, parent=None, shortcut=None):
@ -2100,6 +2277,7 @@ p.c2 {
<p class=c2><a href=#callgraph>1.1 Context-Sensitive Call Graph</a></p>
<p class=c2><a href=#allbranches>1.2 All branches</a></p>
<p class=c2><a href=#selectedbranches>1.3 Selected branches</a></p>
<p class=c2><a href=#topcallsbyelapsedtime>1.4 Top calls by elapsed time</a></p>
<p class=c1><a href=#tables>2. Tables</a></p>
<h1 id=reports>1. Reports</h1>
<h2 id=callgraph>1.1 Context-Sensitive Call Graph</h2>
@ -2175,6 +2353,10 @@ ms, us or ns. Also, negative values are relative to the end of trace. Examples:
-10ms- The last 10ms
</pre>
N.B. Due to the granularity of timestamps, there could be no branches in any given time range.
<h2 id=topcallsbyelapsedtime>1.4 Top calls by elapsed time</h2>
The Top calls by elapsed time report displays calls in descending order of time elapsed between when the function was called and when it returned.
The data is reduced by various selection criteria. A dialog box displays available criteria which are AND'ed together.
If not all data is fetched, a Fetch bar is provided. Ctrl-F displays a Find bar.
<h1 id=tables>2. Tables</h1>
The Tables menu shows all tables and views in the database. Most tables have an associated view
which displays the information in a more friendly way. Not all data for large tables is fetched
@ -2304,10 +2486,14 @@ class MainWindow(QMainWindow):
edit_menu.addAction(CreateAction("&Enlarge Font", "Make text bigger", self.EnlargeFont, self, [QKeySequence("Ctrl++")]))
reports_menu = menu.addMenu("&Reports")
reports_menu.addAction(CreateAction("Context-Sensitive Call &Graph", "Create a new window containing a context-sensitive call graph", self.NewCallGraph, self))
if IsSelectable(glb.db, "calls"):
reports_menu.addAction(CreateAction("Context-Sensitive Call &Graph", "Create a new window containing a context-sensitive call graph", self.NewCallGraph, self))
self.EventMenu(GetEventList(glb.db), reports_menu)
if IsSelectable(glb.db, "calls"):
reports_menu.addAction(CreateAction("&Top calls by elapsed time", "Create a new window displaying top calls by elapsed time", self.NewTopCalls, self))
self.TableMenu(GetTableList(glb), menu)
self.window_menu = WindowMenu(self.mdi_area, menu)
@ -2363,14 +2549,20 @@ class MainWindow(QMainWindow):
def NewCallGraph(self):
CallGraphWindow(self.glb, self)
def NewTopCalls(self):
dialog = TopCallsDialog(self.glb, self)
ret = dialog.exec_()
if ret:
TopCallsWindow(self.glb, dialog.report_vars, self)
def NewBranchView(self, event_id):
BranchWindow(self.glb, event_id, "", "", self)
BranchWindow(self.glb, event_id, ReportVars(), self)
def NewSelectedBranchView(self, event_id):
dialog = SelectedBranchDialog(self.glb, self)
ret = dialog.exec_()
if ret:
BranchWindow(self.glb, event_id, dialog.name, dialog.where_clause, self)
BranchWindow(self.glb, event_id, dialog.report_vars, self)
def NewTableView(self, table_name):
TableWindow(self.glb, table_name, self)

21
tools/perf/scripts/python/failed-syscalls-by-pid.py
View File

@ -5,6 +5,8 @@
# Displays system-wide failed system call totals, broken down by pid.
# If a [comm] arg is specified, only syscalls called by [comm] are displayed.
from __future__ import print_function
import os
import sys
@ -32,7 +34,7 @@ if len(sys.argv) > 1:
syscalls = autodict()
def trace_begin():
print "Press control+C to stop and show the summary"
print("Press control+C to stop and show the summary")
def trace_end():
print_error_totals()
@ -57,22 +59,21 @@ def syscalls__sys_exit(event_name, context, common_cpu,
def print_error_totals():
if for_comm is not None:
print "\nsyscall errors for %s:\n\n" % (for_comm),
print("\nsyscall errors for %s:\n" % (for_comm))
else:
print "\nsyscall errors:\n\n",
print("\nsyscall errors:\n")
print "%-30s %10s\n" % ("comm [pid]", "count"),
print "%-30s %10s\n" % ("------------------------------", \
"----------"),
print("%-30s %10s" % ("comm [pid]", "count"))
print("%-30s %10s" % ("------------------------------", "----------"))
comm_keys = syscalls.keys()
for comm in comm_keys:
pid_keys = syscalls[comm].keys()
for pid in pid_keys:
print "\n%s [%d]\n" % (comm, pid),
print("\n%s [%d]" % (comm, pid))
id_keys = syscalls[comm][pid].keys()
for id in id_keys:
print " syscall: %-16s\n" % syscall_name(id),
print(" syscall: %-16s" % syscall_name(id))
ret_keys = syscalls[comm][pid][id].keys()
for ret, val in sorted(syscalls[comm][pid][id].iteritems(), key = lambda(k, v): (v, k), reverse = True):
print " err = %-20s %10d\n" % (strerror(ret), val),
for ret, val in sorted(syscalls[comm][pid][id].items(), key = lambda kv: (kv[1], kv[0]), reverse = True):
print(" err = %-20s %10d" % (strerror(ret), val))

24
tools/perf/scripts/python/mem-phys-addr.py
View File

@ -4,6 +4,8 @@
# Copyright (c) 2018, Intel Corporation.
from __future__ import division
from __future__ import print_function
import os
import sys
import struct
@ -31,21 +33,23 @@ def parse_iomem():
for i, j in enumerate(f):
m = re.split('-|:',j,2)
if m[2].strip() == 'System RAM':
system_ram.append(long(m[0], 16))
system_ram.append(long(m[1], 16))
system_ram.append(int(m[0], 16))
system_ram.append(int(m[1], 16))
if m[2].strip() == 'Persistent Memory':
pmem.append(long(m[0], 16))
pmem.append(long(m[1], 16))
pmem.append(int(m[0], 16))
pmem.append(int(m[1], 16))
def print_memory_type():
print "Event: %s" % (event_name)
print "%-40s %10s %10s\n" % ("Memory type", "count", "percentage"),
print "%-40s %10s %10s\n" % ("----------------------------------------", \
print("Event: %s" % (event_name))
print("%-40s %10s %10s\n" % ("Memory type", "count", "percentage"), end='')
print("%-40s %10s %10s\n" % ("----------------------------------------",
"-----------", "-----------"),
end='');
total = sum(load_mem_type_cnt.values())
for mem_type, count in sorted(load_mem_type_cnt.most_common(), \
key = lambda(k, v): (v, k), reverse = True):
print "%-40s %10d %10.1f%%\n" % (mem_type, count, 100 * count / total),
key = lambda kv: (kv[1], kv[0]), reverse = True):
print("%-40s %10d %10.1f%%\n" % (mem_type, count, 100 * count / total),
end='')
def trace_begin():
parse_iomem()
@ -80,7 +84,7 @@ def find_memory_type(phys_addr):
f.seek(0, 0)
for j in f:
m = re.split('-|:',j,2)
if long(m[0], 16) <= phys_addr <= long(m[1], 16):
if int(m[0], 16) <= phys_addr <= int(m[1], 16):
return m[2]
return "N/A"

10
tools/perf/scripts/python/net_dropmonitor.py
View File

@ -1,6 +1,8 @@
# Monitor the system for dropped packets and proudce a report of drop locations and counts
# SPDX-License-Identifier: GPL-2.0
from __future__ import print_function
import os
import sys
@ -50,19 +52,19 @@ def get_sym(sloc):
return (None, 0)
def print_drop_table():
print "%25s %25s %25s" % ("LOCATION", "OFFSET", "COUNT")
print("%25s %25s %25s" % ("LOCATION", "OFFSET", "COUNT"))
for i in drop_log.keys():
(sym, off) = get_sym(i)
if sym == None:
sym = i
print "%25s %25s %25s" % (sym, off, drop_log[i])
print("%25s %25s %25s" % (sym, off, drop_log[i]))
def trace_begin():
print "Starting trace (Ctrl-C to dump results)"
print("Starting trace (Ctrl-C to dump results)")
def trace_end():
print "Gathering kallsyms data"
print("Gathering kallsyms data")
get_kallsyms_table()
print_drop_table()

82
tools/perf/scripts/python/netdev-times.py
View File

@ -8,6 +8,8 @@
# dev=: show only thing related to specified device
# debug: work with debug mode. It shows buffer status.
from __future__ import print_function
import os
import sys
@ -17,6 +19,7 @@ sys.path.append(os.environ['PERF_EXEC_PATH'] + \
from perf_trace_context import *
from Core import *
from Util import *
from functools import cmp_to_key
all_event_list = []; # insert all tracepoint event related with this script
irq_dic = {}; # key is cpu and value is a list which stacks irqs
@ -61,12 +64,12 @@ def diff_msec(src, dst):
def print_transmit(hunk):
if dev != 0 and hunk['dev'].find(dev) < 0:
return
print "%7s %5d %6d.%06dsec %12.3fmsec %12.3fmsec" % \
print("%7s %5d %6d.%06dsec %12.3fmsec %12.3fmsec" %
(hunk['dev'], hunk['len'],
nsecs_secs(hunk['queue_t']),
nsecs_nsecs(hunk['queue_t'])/1000,
diff_msec(hunk['queue_t'], hunk['xmit_t']),
diff_msec(hunk['xmit_t'], hunk['free_t']))
diff_msec(hunk['xmit_t'], hunk['free_t'])))
# Format for displaying rx packet processing
PF_IRQ_ENTRY= " irq_entry(+%.3fmsec irq=%d:%s)"
@ -98,55 +101,55 @@ def print_receive(hunk):
if show_hunk == 0:
return
print "%d.%06dsec cpu=%d" % \
(nsecs_secs(base_t), nsecs_nsecs(base_t)/1000, cpu)
print("%d.%06dsec cpu=%d" %
(nsecs_secs(base_t), nsecs_nsecs(base_t)/1000, cpu))
for i in range(len(irq_list)):
print PF_IRQ_ENTRY % \
print(PF_IRQ_ENTRY %
(diff_msec(base_t, irq_list[i]['irq_ent_t']),
irq_list[i]['irq'], irq_list[i]['name'])
print PF_JOINT
irq_list[i]['irq'], irq_list[i]['name']))
print(PF_JOINT)
irq_event_list = irq_list[i]['event_list']
for j in range(len(irq_event_list)):
irq_event = irq_event_list[j]
if irq_event['event'] == 'netif_rx':
print PF_NET_RX % \
print(PF_NET_RX %
(diff_msec(base_t, irq_event['time']),
irq_event['skbaddr'])
print PF_JOINT
print PF_SOFT_ENTRY % \
diff_msec(base_t, hunk['sirq_ent_t'])
print PF_JOINT
irq_event['skbaddr']))
print(PF_JOINT)
print(PF_SOFT_ENTRY %
diff_msec(base_t, hunk['sirq_ent_t']))
print(PF_JOINT)
event_list = hunk['event_list']
for i in range(len(event_list)):
event = event_list[i]
if event['event_name'] == 'napi_poll':
print PF_NAPI_POLL % \
(diff_msec(base_t, event['event_t']), event['dev'])
print(PF_NAPI_POLL %
(diff_msec(base_t, event['event_t']), event['dev']))
if i == len(event_list) - 1:
print ""
print("")
else:
print PF_JOINT
print(PF_JOINT)
else:
print PF_NET_RECV % \
print(PF_NET_RECV %
(diff_msec(base_t, event['event_t']), event['skbaddr'],
event['len'])
event['len']))
if 'comm' in event.keys():
print PF_WJOINT
print PF_CPY_DGRAM % \
print(PF_WJOINT)
print(PF_CPY_DGRAM %
(diff_msec(base_t, event['comm_t']),
event['pid'], event['comm'])
event['pid'], event['comm']))
elif 'handle' in event.keys():
print PF_WJOINT
print(PF_WJOINT)
if event['handle'] == "kfree_skb":
print PF_KFREE_SKB % \
print(PF_KFREE_SKB %
(diff_msec(base_t,
event['comm_t']),
event['location'])
event['location']))
elif event['handle'] == "consume_skb":
print PF_CONS_SKB % \
print(PF_CONS_SKB %
diff_msec(base_t,
event['comm_t'])
print PF_JOINT
event['comm_t']))
print(PF_JOINT)
def trace_begin():
global show_tx
@ -172,8 +175,7 @@ def trace_begin():
def trace_end():
# order all events in time
all_event_list.sort(lambda a,b :cmp(a[EINFO_IDX_TIME],
b[EINFO_IDX_TIME]))
all_event_list.sort(key=cmp_to_key(lambda a,b :a[EINFO_IDX_TIME] < b[EINFO_IDX_TIME]))
# process all events
for i in range(len(all_event_list)):
event_info = all_event_list[i]
@ -210,19 +212,19 @@ def trace_end():
print_receive(receive_hunk_list[i])
# display transmit hunks
if show_tx:
print " dev len Qdisc " \
" netdevice free"
print(" dev len Qdisc "
" netdevice free")
for i in range(len(tx_free_list)):
print_transmit(tx_free_list[i])
if debug:
print "debug buffer status"
print "----------------------------"
print "xmit Qdisc:remain:%d overflow:%d" % \
(len(tx_queue_list), of_count_tx_queue_list)
print "xmit netdevice:remain:%d overflow:%d" % \
(len(tx_xmit_list), of_count_tx_xmit_list)
print "receive:remain:%d overflow:%d" % \
(len(rx_skb_list), of_count_rx_skb_list)
print("debug buffer status")
print("----------------------------")
print("xmit Qdisc:remain:%d overflow:%d" %
(len(tx_queue_list), of_count_tx_queue_list))
print("xmit netdevice:remain:%d overflow:%d" %
(len(tx_xmit_list), of_count_tx_xmit_list))
print("receive:remain:%d overflow:%d" %
(len(rx_skb_list), of_count_rx_skb_list))
# called from perf, when it finds a correspoinding event
def irq__softirq_entry(name, context, cpu, sec, nsec, pid, comm, callchain, vec):

18
tools/perf/scripts/python/powerpc-hcalls.py
View File

@ -4,6 +4,8 @@
#
# Hypervisor call statisics
from __future__ import print_function
import os
import sys
@ -149,7 +151,7 @@ hcall_table = {
}
def hcall_table_lookup(opcode):
if (hcall_table.has_key(opcode)):
if (opcode in hcall_table):
return hcall_table[opcode]
else:
return opcode
@ -157,8 +159,8 @@ def hcall_table_lookup(opcode):
print_ptrn = '%-28s%10s%10s%10s%10s'
def trace_end():
print print_ptrn % ('hcall', 'count', 'min(ns)', 'max(ns)', 'avg(ns)')
print '-' * 68
print(print_ptrn % ('hcall', 'count', 'min(ns)', 'max(ns)', 'avg(ns)'))
print('-' * 68)
for opcode in output:
h_name = hcall_table_lookup(opcode)
time = output[opcode]['time']
@ -166,14 +168,14 @@ def trace_end():
min_t = output[opcode]['min']
max_t = output[opcode]['max']
print print_ptrn % (h_name, cnt, min_t, max_t, time/cnt)
print(print_ptrn % (h_name, cnt, min_t, max_t, time//cnt))
def powerpc__hcall_exit(name, context, cpu, sec, nsec, pid, comm, callchain,
opcode, retval):
if (d_enter.has_key(cpu) and d_enter[cpu].has_key(opcode)):
if (cpu in d_enter and opcode in d_enter[cpu]):
diff = nsecs(sec, nsec) - d_enter[cpu][opcode]
if (output.has_key(opcode)):
if (opcode in output):
output[opcode]['time'] += diff
output[opcode]['cnt'] += 1
if (output[opcode]['min'] > diff):
@ -190,11 +192,11 @@ def powerpc__hcall_exit(name, context, cpu, sec, nsec, pid, comm, callchain,
del d_enter[cpu][opcode]
# else:
# print "Can't find matching hcall_enter event. Ignoring sample"
# print("Can't find matching hcall_enter event. Ignoring sample")
def powerpc__hcall_entry(event_name, context, cpu, sec, nsec, pid, comm,
callchain, opcode):
if (d_enter.has_key(cpu)):
if (cpu in d_enter):
d_enter[cpu][opcode] = nsecs(sec, nsec)
else:
d_enter[cpu] = {opcode: nsecs(sec, nsec)}

24
tools/perf/scripts/python/sctop.py
View File

@ -8,7 +8,14 @@
# will be refreshed every [interval] seconds. The default interval is
# 3 seconds.
import os, sys, thread, time
from __future__ import print_function
import os, sys, time
try:
import thread
except ImportError:
import _thread as thread
sys.path.append(os.environ['PERF_EXEC_PATH'] + \
'/scripts/python/Perf-Trace-Util/lib/Perf/Trace')
@ -62,18 +69,19 @@ def print_syscall_totals(interval):
while 1:
clear_term()
if for_comm is not None:
print "\nsyscall events for %s:\n\n" % (for_comm),
print("\nsyscall events for %s:\n" % (for_comm))
else:
print "\nsyscall events:\n\n",
print("\nsyscall events:\n")
print "%-40s %10s\n" % ("event", "count"),
print "%-40s %10s\n" % ("----------------------------------------", \
"----------"),
print("%-40s %10s" % ("event", "count"))
print("%-40s %10s" %
("----------------------------------------",
"----------"))
for id, val in sorted(syscalls.iteritems(), key = lambda(k, v): (v, k), \
for id, val in sorted(syscalls.items(), key = lambda kv: (kv[1], kv[0]), \
reverse = True):
try:
print "%-40s %10d\n" % (syscall_name(id), val),
print("%-40s %10d" % (syscall_name(id), val))
except TypeError:
pass
syscalls.clear()

7
tools/perf/scripts/python/stackcollapse.py
View File

@ -19,6 +19,8 @@
# Written by Paolo Bonzini <pbonzini@redhat.com>
# Based on Brendan Gregg's stackcollapse-perf.pl script.
from __future__ import print_function
import os
import sys
from collections import defaultdict
@ -120,7 +122,6 @@ def process_event(param_dict):
lines[stack_string] = lines[stack_string] + 1
def trace_end():
list = lines.keys()
list.sort()
list = sorted(lines)
for stack in list:
print "%s %d" % (stack, lines[stack])
print("%s %d" % (stack, lines[stack]))

10
tools/perf/scripts/python/stat-cpi.py
View File

@ -1,5 +1,7 @@
# SPDX-License-Identifier: GPL-2.0
from __future__ import print_function
data = {}
times = []
threads = []
@ -19,8 +21,8 @@ def store_key(time, cpu, thread):
threads.append(thread)
def store(time, event, cpu, thread, val, ena, run):
#print "event %s cpu %d, thread %d, time %d, val %d, ena %d, run %d" % \
# (event, cpu, thread, time, val, ena, run)
#print("event %s cpu %d, thread %d, time %d, val %d, ena %d, run %d" %
# (event, cpu, thread, time, val, ena, run))
store_key(time, cpu, thread)
key = get_key(time, event, cpu, thread)
@ -58,7 +60,7 @@ def stat__interval(time):
if ins != 0:
cpi = cyc/float(ins)
print "%15f: cpu %d, thread %d -> cpi %f (%d/%d)" % (time/(float(1000000000)), cpu, thread, cpi, cyc, ins)
print("%15f: cpu %d, thread %d -> cpi %f (%d/%d)" % (time/(float(1000000000)), cpu, thread, cpi, cyc, ins))
def trace_end():
pass
@ -74,4 +76,4 @@ def trace_end():
# if ins != 0:
# cpi = cyc/float(ins)
#
# print "time %.9f, cpu %d, thread %d -> cpi %f" % (time/(float(1000000000)), cpu, thread, cpi)
# print("time %.9f, cpu %d, thread %d -> cpi %f" % (time/(float(1000000000)), cpu, thread, cpi))

22
tools/perf/scripts/python/syscall-counts-by-pid.py
View File

@ -5,6 +5,8 @@
# Displays system-wide system call totals, broken down by syscall.
# If a [comm] arg is specified, only syscalls called by [comm] are displayed.
from __future__ import print_function
import os, sys
sys.path.append(os.environ['PERF_EXEC_PATH'] + \
@ -31,7 +33,7 @@ if len(sys.argv) > 1:
syscalls = autodict()
def trace_begin():
print "Press control+C to stop and show the summary"
print("Press control+C to stop and show the summary")
def trace_end():
print_syscall_totals()
@ -55,20 +57,20 @@ def syscalls__sys_enter(event_name, context, common_cpu,
def print_syscall_totals():
if for_comm is not None:
print "\nsyscall events for %s:\n\n" % (for_comm),
print("\nsyscall events for %s:\n" % (for_comm))
else:
print "\nsyscall events by comm/pid:\n\n",
print("\nsyscall events by comm/pid:\n")
print "%-40s %10s\n" % ("comm [pid]/syscalls", "count"),
print "%-40s %10s\n" % ("----------------------------------------", \
"----------"),
print("%-40s %10s" % ("comm [pid]/syscalls", "count"))
print("%-40s %10s" % ("----------------------------------------",
"----------"))
comm_keys = syscalls.keys()
for comm in comm_keys:
pid_keys = syscalls[comm].keys()
for pid in pid_keys:
print "\n%s [%d]\n" % (comm, pid),
print("\n%s [%d]" % (comm, pid))
id_keys = syscalls[comm][pid].keys()
for id, val in sorted(syscalls[comm][pid].iteritems(), \
key = lambda(k, v): (v, k), reverse = True):
print " %-38s %10d\n" % (syscall_name(id), val),
for id, val in sorted(syscalls[comm][pid].items(), \
key = lambda kv: (kv[1], kv[0]), reverse = True):
print(" %-38s %10d" % (syscall_name(id), val))

18
tools/perf/scripts/python/syscall-counts.py
View File

@ -5,6 +5,8 @@
# Displays system-wide system call totals, broken down by syscall.
# If a [comm] arg is specified, only syscalls called by [comm] are displayed.
from __future__ import print_function
import os
import sys
@ -28,7 +30,7 @@ if len(sys.argv) > 1:
syscalls = autodict()
def trace_begin():
print "Press control+C to stop and show the summary"
print("Press control+C to stop and show the summary")
def trace_end():
print_syscall_totals()
@ -51,14 +53,14 @@ def syscalls__sys_enter(event_name, context, common_cpu,
def print_syscall_totals():
if for_comm is not None:
print "\nsyscall events for %s:\n\n" % (for_comm),
print("\nsyscall events for %s:\n" % (for_comm))
else:
print "\nsyscall events:\n\n",
print("\nsyscall events:\n")
print "%-40s %10s\n" % ("event", "count"),
print "%-40s %10s\n" % ("----------------------------------------", \
"-----------"),
print("%-40s %10s" % ("event", "count"))
print("%-40s %10s" % ("----------------------------------------",
"-----------"))
for id, val in sorted(syscalls.iteritems(), key = lambda(k, v): (v, k), \
for id, val in sorted(syscalls.items(), key = lambda kv: (kv[1], kv[0]), \
reverse = True):
print "%-40s %10d\n" % (syscall_name(id), val),
print("%-40s %10d" % (syscall_name(id), val))

4
tools/perf/util/annotate.c
View File

@ -1891,6 +1891,7 @@ int symbol__annotate(struct symbol *sym, struct map *map,
struct annotation_options *options,
struct arch **parch)
{
struct annotation *notes = symbol__annotation(sym);
struct annotate_args args = {
.privsize = privsize,
.evsel = evsel,
@ -1921,6 +1922,7 @@ int symbol__annotate(struct symbol *sym, struct map *map,
args.ms.map = map;
args.ms.sym = sym;
notes->start = map__rip_2objdump(map, sym->start);
return symbol__disassemble(sym, &args);
}
@ -2796,8 +2798,6 @@ int symbol__annotate2(struct symbol *sym, struct map *map, struct perf_evsel *ev
symbol__calc_percent(sym, evsel);
notes->start = map__rip_2objdump(map, sym->start);
annotation__set_offsets(notes, size);
annotation__mark_jump_targets(notes, sym);
annotation__compute_ipc(notes, size);

4
tools/perf/util/data-convert-bt.c
View File

@ -1578,7 +1578,7 @@ int bt_convert__perf2ctf(const char *input, const char *path,
{
struct perf_session *session;
struct perf_data data = {
.file = { .path = input, .fd = -1 },
.path = input,
.mode = PERF_DATA_MODE_READ,
.force = opts->force,
};
@ -1650,7 +1650,7 @@ int bt_convert__perf2ctf(const char *input, const char *path,
fprintf(stderr,
"[ perf data convert: Converted '%s' into CTF data '%s' ]\n",
data.file.path, path);
data.path, path);
fprintf(stderr,
"[ perf data convert: Converted and wrote %.3f MB (%" PRIu64 " samples",

175
tools/perf/util/data.c
View File

@ -7,11 +7,117 @@
#include <fcntl.h>
#include <unistd.h>
#include <string.h>
#include <asm/bug.h>
#include <sys/types.h>
#include <dirent.h>
#include "data.h"
#include "util.h"
#include "debug.h"
static void close_dir(struct perf_data_file *files, int nr)
{
while (--nr >= 1) {
close(files[nr].fd);
free(files[nr].path);
}
free(files);
}
void perf_data__close_dir(struct perf_data *data)
{
close_dir(data->dir.files, data->dir.nr);
}
int perf_data__create_dir(struct perf_data *data, int nr)
{
struct perf_data_file *files = NULL;
int i, ret = -1;
files = zalloc(nr * sizeof(*files));
if (!files)
return -ENOMEM;
data->dir.files = files;
data->dir.nr = nr;
for (i = 0; i < nr; i++) {
struct perf_data_file *file = &files[i];
if (asprintf(&file->path, "%s/data.%d", data->path, i) < 0)
goto out_err;
ret = open(file->path, O_RDWR|O_CREAT|O_TRUNC, S_IRUSR|S_IWUSR);
if (ret < 0)
goto out_err;
file->fd = ret;
}
return 0;
out_err:
close_dir(files, i);
return ret;
}
int perf_data__open_dir(struct perf_data *data)
{
struct perf_data_file *files = NULL;
struct dirent *dent;
int ret = -1;
DIR *dir;
int nr = 0;
dir = opendir(data->path);
if (!dir)
return -EINVAL;
while ((dent = readdir(dir)) != NULL) {
struct perf_data_file *file;
char path[PATH_MAX];
struct stat st;
snprintf(path, sizeof(path), "%s/%s", data->path, dent->d_name);
if (stat(path, &st))
continue;
if (!S_ISREG(st.st_mode) || strncmp(dent->d_name, "data", 4))
continue;
ret = -ENOMEM;
file = realloc(files, (nr + 1) * sizeof(*files));
if (!file)
goto out_err;
files = file;
file = &files[nr++];
file->path = strdup(path);
if (!file->path)
goto out_err;
ret = open(file->path, O_RDONLY);
if (ret < 0)
goto out_err;
file->fd = ret;
file->size = st.st_size;
}
if (!files)
return -EINVAL;
data->dir.files = files;
data->dir.nr = nr;
return 0;
out_err:
close_dir(files, nr);
return ret;
}
static bool check_pipe(struct perf_data *data)
{
struct stat st;
@ -19,11 +125,11 @@ static bool check_pipe(struct perf_data *data)
int fd = perf_data__is_read(data) ?
STDIN_FILENO : STDOUT_FILENO;
if (!data->file.path) {
if (!data->path) {
if (!fstat(fd, &st) && S_ISFIFO(st.st_mode))
is_pipe = true;
} else {
if (!strcmp(data->file.path, "-"))
if (!strcmp(data->path, "-"))
is_pipe = true;
}
@ -37,13 +143,31 @@ static int check_backup(struct perf_data *data)
{
struct stat st;
if (!stat(data->file.path, &st) && st.st_size) {
/* TODO check errors properly */
if (perf_data__is_read(data))
return 0;
if (!stat(data->path, &st) && st.st_size) {
char oldname[PATH_MAX];
int ret;
snprintf(oldname, sizeof(oldname), "%s.old",
data->file.path);
unlink(oldname);
rename(data->file.path, oldname);
data->path);
ret = rm_rf_perf_data(oldname);
if (ret) {
pr_err("Can't remove old data: %s (%s)\n",
ret == -2 ?
"Unknown file found" : strerror(errno),
oldname);
return -1;
}
if (rename(data->path, oldname)) {
pr_err("Can't move data: %s (%s to %s)\n",
strerror(errno),
data->path, oldname);
return -1;
}
}
return 0;
@ -82,7 +206,7 @@ static int open_file_read(struct perf_data *data)
goto out_close;
}
data->size = st.st_size;
data->file.size = st.st_size;
return fd;
out_close:
@ -95,9 +219,6 @@ static int open_file_write(struct perf_data *data)
int fd;
char sbuf[STRERR_BUFSIZE];
if (check_backup(data))
return -1;
fd = open(data->file.path, O_CREAT|O_RDWR|O_TRUNC|O_CLOEXEC,
S_IRUSR|S_IWUSR);
@ -115,8 +236,22 @@ static int open_file(struct perf_data *data)
fd = perf_data__is_read(data) ?
open_file_read(data) : open_file_write(data);
if (fd < 0) {
free(data->file.path);
return -1;
}
data->file.fd = fd;
return fd < 0 ? -1 : 0;
return 0;
}
static int open_file_dup(struct perf_data *data)
{
data->file.path = strdup(data->path);
if (!data->file.path)
return -ENOMEM;
return open_file(data);
}
int perf_data__open(struct perf_data *data)
@ -124,14 +259,18 @@ int perf_data__open(struct perf_data *data)
if (check_pipe(data))
return 0;
if (!data->file.path)
data->file.path = "perf.data";
if (!data->path)
data->path = "perf.data";
return open_file(data);
if (check_backup(data))
return -1;
return open_file_dup(data);
}
void perf_data__close(struct perf_data *data)
{
free(data->file.path);
close(data->file.fd);
}
@ -159,15 +298,15 @@ int perf_data__switch(struct perf_data *data,
if (perf_data__is_read(data))
return -EINVAL;
if (asprintf(&new_filepath, "%s.%s", data->file.path, postfix) < 0)
if (asprintf(&new_filepath, "%s.%s", data->path, postfix) < 0)
return -ENOMEM;
/*
* Only fire a warning, don't return error, continue fill
* original file.
*/
if (rename(data->file.path, new_filepath))
pr_warning("Failed to rename %s to %s\n", data->file.path, new_filepath);
if (rename(data->path, new_filepath))
pr_warning("Failed to rename %s to %s\n", data->path, new_filepath);
if (!at_exit) {
close(data->file.fd);

16
tools/perf/util/data.h
View File

@ -10,16 +10,22 @@ enum perf_data_mode {
};
struct perf_data_file {
const char *path;
char *path;
int fd;
unsigned long size;
};
struct perf_data {
const char *path;
struct perf_data_file file;
bool is_pipe;
bool force;
unsigned long size;
enum perf_data_mode mode;
struct {
struct perf_data_file *files;
int nr;
} dir;
};
static inline bool perf_data__is_read(struct perf_data *data)
@ -44,7 +50,7 @@ static inline int perf_data__fd(struct perf_data *data)
static inline unsigned long perf_data__size(struct perf_data *data)
{
return data->size;
return data->file.size;
}
int perf_data__open(struct perf_data *data);
@ -63,4 +69,8 @@ ssize_t perf_data_file__write(struct perf_data_file *file,
int perf_data__switch(struct perf_data *data,
const char *postfix,
size_t pos, bool at_exit);
int perf_data__create_dir(struct perf_data *data, int nr);
int perf_data__open_dir(struct perf_data *data);
void perf_data__close_dir(struct perf_data *data);
#endif /* __PERF_DATA_H */

12
tools/perf/util/header.c
View File

@ -527,17 +527,11 @@ static int write_event_desc(struct feat_fd *ff,
static int write_cmdline(struct feat_fd *ff,
struct perf_evlist *evlist __maybe_unused)
{
char buf[MAXPATHLEN];
u32 n;
int i, ret;
char pbuf[MAXPATHLEN], *buf;
int i, ret, n;
/* actual path to perf binary */
ret = readlink("/proc/self/exe", buf, sizeof(buf) - 1);
if (ret <= 0)
return -1;
/* readlink() does not add null termination */
buf[ret] = '\0';
buf = perf_exe(pbuf, MAXPATHLEN);
/* account for binary path */
n = perf_env.nr_cmdline + 1;

161
tools/perf/util/thread-stack.c
View File

@ -20,6 +20,7 @@
#include "thread.h"
#include "event.h"
#include "machine.h"
#include "env.h"
#include "util.h"
#include "debug.h"
#include "symbol.h"
@ -29,6 +30,19 @@
#define STACK_GROWTH 2048
/*
* State of retpoline detection.
*
* RETPOLINE_NONE: no retpoline detection
* X86_RETPOLINE_POSSIBLE: x86 retpoline possible
* X86_RETPOLINE_DETECTED: x86 retpoline detected
*/
enum retpoline_state_t {
RETPOLINE_NONE,
X86_RETPOLINE_POSSIBLE,
X86_RETPOLINE_DETECTED,
};
/**
* struct thread_stack_entry - thread stack entry.
* @ret_addr: return address
@ -64,6 +78,7 @@ struct thread_stack_entry {
* @crp: call/return processor
* @comm: current comm
* @arr_sz: size of array if this is the first element of an array
* @rstate: used to detect retpolines
*/
struct thread_stack {
struct thread_stack_entry *stack;
@ -76,6 +91,7 @@ struct thread_stack {
struct call_return_processor *crp;
struct comm *comm;
unsigned int arr_sz;
enum retpoline_state_t rstate;
};
/*
@ -115,10 +131,16 @@ static int thread_stack__init(struct thread_stack *ts, struct thread *thread,
if (err)
return err;
if (thread->mg && thread->mg->machine)
ts->kernel_start = machine__kernel_start(thread->mg->machine);
else
if (thread->mg && thread->mg->machine) {
struct machine *machine = thread->mg->machine;
const char *arch = perf_env__arch(machine->env);
ts->kernel_start = machine__kernel_start(machine);
if (!strcmp(arch, "x86"))
ts->rstate = X86_RETPOLINE_POSSIBLE;
} else {
ts->kernel_start = 1ULL << 63;
}
ts->crp = crp;
return 0;
@ -638,14 +660,57 @@ static int thread_stack__no_call_return(struct thread *thread,
else
parent = root;
/* This 'return' had no 'call', so push and pop top of stack */
cp = call_path__findnew(cpr, parent, fsym, ip, ks);
if (parent->sym == from_al->sym) {
/*
* At the bottom of the stack, assume the missing 'call' was
* before the trace started. So, pop the current symbol and push
* the 'to' symbol.
*/
if (ts->cnt == 1) {
err = thread_stack__call_return(thread, ts, --ts->cnt,
tm, ref, false);
if (err)
return err;
}
if (!ts->cnt) {
cp = call_path__findnew(cpr, root, tsym, addr, ks);
return thread_stack__push_cp(ts, addr, tm, ref, cp,
true, false);
}
/*
* Otherwise assume the 'return' is being used as a jump (e.g.
* retpoline) and just push the 'to' symbol.
*/
cp = call_path__findnew(cpr, parent, tsym, addr, ks);
err = thread_stack__push_cp(ts, 0, tm, ref, cp, true, false);
if (!err)
ts->stack[ts->cnt - 1].non_call = true;
return err;
}
/*
* Assume 'parent' has not yet returned, so push 'to', and then push and
* pop 'from'.
*/
cp = call_path__findnew(cpr, parent, tsym, addr, ks);
err = thread_stack__push_cp(ts, addr, tm, ref, cp, true, false);
if (err)
return err;
return thread_stack__pop_cp(thread, ts, addr, tm, ref, tsym);
cp = call_path__findnew(cpr, cp, fsym, ip, ks);
err = thread_stack__push_cp(ts, ip, tm, ref, cp, true, false);
if (err)
return err;
return thread_stack__call_return(thread, ts, --ts->cnt, tm, ref, false);
}
static int thread_stack__trace_begin(struct thread *thread,
@ -690,6 +755,70 @@ static int thread_stack__trace_end(struct thread_stack *ts,
false, true);
}
static bool is_x86_retpoline(const char *name)
{
const char *p = strstr(name, "__x86_indirect_thunk_");
return p == name || !strcmp(name, "__indirect_thunk_start");
}
/*
* x86 retpoline functions pollute the call graph. This function removes them.
* This does not handle function return thunks, nor is there any improvement
* for the handling of inline thunks or extern thunks.
*/
static int thread_stack__x86_retpoline(struct thread_stack *ts,
struct perf_sample *sample,
struct addr_location *to_al)
{
struct thread_stack_entry *tse = &ts->stack[ts->cnt - 1];
struct call_path_root *cpr = ts->crp->cpr;
struct symbol *sym = tse->cp->sym;
struct symbol *tsym = to_al->sym;
struct call_path *cp;
if (sym && is_x86_retpoline(sym->name)) {
/*
* This is a x86 retpoline fn. It pollutes the call graph by
* showing up everywhere there is an indirect branch, but does
* not itself mean anything. Here the top-of-stack is removed,
* by decrementing the stack count, and then further down, the
* resulting top-of-stack is replaced with the actual target.
* The result is that the retpoline functions will no longer
* appear in the call graph. Note this only affects the call
* graph, since all the original branches are left unchanged.
*/
ts->cnt -= 1;
sym = ts->stack[ts->cnt - 2].cp->sym;
if (sym && sym == tsym && to_al->addr != tsym->start) {
/*
* Target is back to the middle of the symbol we came
* from so assume it is an indirect jmp and forget it
* altogether.
*/
ts->cnt -= 1;
return 0;
}
} else if (sym && sym == tsym) {
/*
* Target is back to the symbol we came from so assume it is an
* indirect jmp and forget it altogether.
*/
ts->cnt -= 1;
return 0;
}
cp = call_path__findnew(cpr, ts->stack[ts->cnt - 2].cp, tsym,
sample->addr, ts->kernel_start);
if (!cp)
return -ENOMEM;
/* Replace the top-of-stack with the actual target */
ts->stack[ts->cnt - 1].cp = cp;
return 0;
}
int thread_stack__process(struct thread *thread, struct comm *comm,
struct perf_sample *sample,
struct addr_location *from_al,
@ -697,6 +826,7 @@ int thread_stack__process(struct thread *thread, struct comm *comm,
struct call_return_processor *crp)
{
struct thread_stack *ts = thread__stack(thread, sample->cpu);
enum retpoline_state_t rstate;
int err = 0;
if (ts && !ts->crp) {
@ -712,6 +842,10 @@ int thread_stack__process(struct thread *thread, struct comm *comm,
ts->comm = comm;
}
rstate = ts->rstate;
if (rstate == X86_RETPOLINE_DETECTED)
ts->rstate = X86_RETPOLINE_POSSIBLE;
/* Flush stack on exec */
if (ts->comm != comm && thread->pid_ == thread->tid) {
err = __thread_stack__flush(thread, ts);
@ -748,10 +882,25 @@ int thread_stack__process(struct thread *thread, struct comm *comm,
ts->kernel_start);
err = thread_stack__push_cp(ts, ret_addr, sample->time, ref,
cp, false, trace_end);
/*
* A call to the same symbol but not the start of the symbol,
* may be the start of a x86 retpoline.
*/
if (!err && rstate == X86_RETPOLINE_POSSIBLE && to_al->sym &&
from_al->sym == to_al->sym &&
to_al->addr != to_al->sym->start)
ts->rstate = X86_RETPOLINE_DETECTED;
} else if (sample->flags & PERF_IP_FLAG_RETURN) {
if (!sample->ip || !sample->addr)
return 0;
/* x86 retpoline 'return' doesn't match the stack */
if (rstate == X86_RETPOLINE_DETECTED && ts->cnt > 2 &&
ts->stack[ts->cnt - 1].ret_addr != sample->addr)
return thread_stack__x86_retpoline(ts, sample, to_al);
err = thread_stack__pop_cp(thread, ts, sample->addr,
sample->time, ref, from_al->sym);
if (err) {

65
tools/perf/util/util.c
View File

@ -21,6 +21,7 @@
#include <linux/time64.h>
#include <unistd.h>
#include "strlist.h"
#include "string2.h"
/*
* XXX We need to find a better place for these things...
@ -117,7 +118,38 @@ int mkdir_p(char *path, mode_t mode)
return (stat(path, &st) && mkdir(path, mode)) ? -1 : 0;
}
int rm_rf(const char *path)
static bool match_pat(char *file, const char **pat)
{
int i = 0;
if (!pat)
return true;
while (pat[i]) {
if (strglobmatch(file, pat[i]))
return true;
i++;
}
return false;
}
/*
* The depth specify how deep the removal will go.
* 0 - will remove only files under the 'path' directory
* 1 .. x - will dive in x-level deep under the 'path' directory
*
* If specified the pat is array of string patterns ended with NULL,
* which are checked upon every file/directory found. Only matching
* ones are removed.
*
* The function returns:
* 0 on success
* -1 on removal failure with errno set
* -2 on pattern failure
*/
static int rm_rf_depth_pat(const char *path, int depth, const char **pat)
{
DIR *dir;
int ret;
@ -144,6 +176,9 @@ int rm_rf(const char *path)
if (!strcmp(d->d_name, ".") || !strcmp(d->d_name, ".."))
continue;
if (!match_pat(d->d_name, pat))
return -2;
scnprintf(namebuf, sizeof(namebuf), "%s/%s",
path, d->d_name);
@ -155,7 +190,7 @@ int rm_rf(const char *path)
}
if (S_ISDIR(statbuf.st_mode))
ret = rm_rf(namebuf);
ret = depth ? rm_rf_depth_pat(namebuf, depth - 1, pat) : 0;
else
ret = unlink(namebuf);
}
@ -167,6 +202,22 @@ int rm_rf(const char *path)
return rmdir(path);
}
int rm_rf_perf_data(const char *path)
{
const char *pat[] = {
"header",
"data.*",
NULL,
};
return rm_rf_depth_pat(path, 0, pat);
}
int rm_rf(const char *path)
{
return rm_rf_depth_pat(path, INT_MAX, NULL);
}
/* A filter which removes dot files */
bool lsdir_no_dot_filter(const char *name __maybe_unused, struct dirent *d)
{
@ -517,3 +568,13 @@ out:
return tip;
}
char *perf_exe(char *buf, int len)
{
int n = readlink("/proc/self/exe", buf, len);
if (n > 0) {
buf[n] = 0;
return buf;
}
return strcpy(buf, "perf");
}

3
tools/perf/util/util.h
View File

@ -31,6 +31,7 @@ struct strlist;
int mkdir_p(char *path, mode_t mode);
int rm_rf(const char *path);
int rm_rf_perf_data(const char *path);
struct strlist *lsdir(const char *name, bool (*filter)(const char *, struct dirent *));
bool lsdir_no_dot_filter(const char *name, struct dirent *d);
int copyfile(const char *from, const char *to);
@ -76,6 +77,8 @@ extern bool perf_singlethreaded;
void perf_set_singlethreaded(void);
void perf_set_multithreaded(void);
char *perf_exe(char *buf, int len);
#ifndef O_CLOEXEC
#ifdef __sparc__
#define O_CLOEXEC 0x400000