perf: Add 'perf kmem' tool
This tool is mostly a perf version of kmemtrace-user. The following information is provided by this tool: - the total amount of memory allocated and fragmentation per call-site - the total amount of memory allocated and fragmentation per allocation - total memory allocated and fragmentation in the collected dataset - ... Sample output: # ./perf kmem record ^C # ./perf kmem --stat caller --stat alloc -l 10 ------------------------------------------------------------------------------ Callsite | Total_alloc/Per | Total_req/Per | Hit | Fragmentation ------------------------------------------------------------------------------ 0xc052f37a | 790528/4096 | 790528/4096 | 193 | 0.000% 0xc0541d70 | 524288/4096 | 524288/4096 | 128 | 0.000% 0xc051cc68 | 481600/200 | 481600/200 | 2408 | 0.000% 0xc0572623 | 297444/676 | 297440/676 | 440 | 0.001% 0xc05399f1 | 73476/164 | 73472/164 | 448 | 0.005% 0xc05243bf | 51456/256 | 51456/256 | 201 | 0.000% 0xc0730d0e | 31844/497 | 31808/497 | 64 | 0.113% 0xc0734c4e | 17152/256 | 17152/256 | 67 | 0.000% 0xc0541a6d | 16384/128 | 16384/128 | 128 | 0.000% 0xc059c217 | 13120/40 | 13120/40 | 328 | 0.000% 0xc0501ee6 | 11264/88 | 11264/88 | 128 | 0.000% 0xc04daef0 | 7504/682 | 7128/648 | 11 | 5.011% 0xc04e14a3 | 4216/191 | 4216/191 | 22 | 0.000% 0xc05041ca | 3524/44 | 3520/44 | 80 | 0.114% 0xc0734fa3 | 2104/701 | 1620/540 | 3 | 23.004% 0xc05ec9f1 | 2024/289 | 2016/288 | 7 | 0.395% 0xc06a1999 | 1792/256 | 1792/256 | 7 | 0.000% 0xc0463b9a | 1584/144 | 1584/144 | 11 | 0.000% 0xc0541eb0 | 1024/16 | 1024/16 | 64 | 0.000% 0xc06a19ac | 896/128 | 896/128 | 7 | 0.000% 0xc05721c0 | 772/12 | 768/12 | 64 | 0.518% 0xc054d1e6 | 288/57 | 280/56 | 5 | 2.778% 0xc04b562e | 157/31 | 154/30 | 5 | 1.911% 0xc04b536f | 80/16 | 80/16 | 5 | 0.000% 0xc05855a0 | 64/64 | 36/36 | 1 | 43.750% ------------------------------------------------------------------------------ ------------------------------------------------------------------------------ Alloc Ptr | Total_alloc/Per | Total_req/Per | Hit | Fragmentation ------------------------------------------------------------------------------ 0xda884000 | 1052672/4096 | 1052672/4096 | 257 | 0.000% 0xda886000 | 262144/4096 | 262144/4096 | 64 | 0.000% 0xf60c7c00 | 16512/128 | 16512/128 | 129 | 0.000% 0xf59a4118 | 13120/40 | 13120/40 | 328 | 0.000% 0xdfd4b2c0 | 11264/88 | 11264/88 | 128 | 0.000% 0xf5274600 | 7680/256 | 7680/256 | 30 | 0.000% 0xe8395000 | 5948/594 | 5464/546 | 10 | 8.137% 0xe59c3c00 | 5748/479 | 5712/476 | 12 | 0.626% 0xf4cd1a80 | 3524/44 | 3520/44 | 80 | 0.114% 0xe5bd1600 | 2892/482 | 2856/476 | 6 | 1.245% ... | ... | ... | ... | ... ------------------------------------------------------------------------------ SUMMARY ======= Total bytes requested: 2333626 Total bytes allocated: 2353712 Total bytes wasted on internal fragmentation: 20086 Internal fragmentation: 0.853375% TODO: - show sym+offset in 'callsite' column - show cross node allocation stats - collect more useful stats? - ... Signed-off-by: Li Zefan <lizf@cn.fujitsu.com> Acked-by: Pekka Enberg <penberg@cs.helsinki.fi> Acked-by: Peter Zijlstra <peterz@infradead.org> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Eduard - Gabriel Munteanu <eduard.munteanu@linux360.ro> Cc: linux-mm@kvack.org <linux-mm@kvack.org> LKML-Reference: <4B064AF5.9060208@cn.fujitsu.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Li Zefan
Ingo Molnar
parent
ce64c62074
commit
ba77c9e111
|
|
@ -444,6 +444,7 @@ BUILTIN_OBJS += builtin-timechart.o
|
|||
BUILTIN_OBJS += builtin-top.o
|
||||
BUILTIN_OBJS += builtin-trace.o
|
||||
BUILTIN_OBJS += builtin-probe.o
|
||||
BUILTIN_OBJS += builtin-kmem.o
|
||||
|
||||
PERFLIBS = $(LIB_FILE)
|
||||
|
||||
|
|
|
|||
|
|
@ -0,0 +1,578 @@
|
|||
#include "builtin.h"
|
||||
#include "perf.h"
|
||||
|
||||
#include "util/util.h"
|
||||
#include "util/cache.h"
|
||||
#include "util/symbol.h"
|
||||
#include "util/thread.h"
|
||||
#include "util/header.h"
|
||||
|
||||
#include "util/parse-options.h"
|
||||
#include "util/trace-event.h"
|
||||
|
||||
#include "util/debug.h"
|
||||
#include "util/data_map.h"
|
||||
|
||||
#include <linux/rbtree.h>
|
||||
|
||||
struct alloc_stat;
|
||||
typedef int (*sort_fn_t)(struct alloc_stat *, struct alloc_stat *);
|
||||
|
||||
static char const *input_name = "perf.data";
|
||||
|
||||
static struct perf_header *header;
|
||||
static u64 sample_type;
|
||||
|
||||
static int alloc_flag;
|
||||
static int caller_flag;
|
||||
|
||||
sort_fn_t alloc_sort_fn;
|
||||
sort_fn_t caller_sort_fn;
|
||||
|
||||
static int alloc_lines = -1;
|
||||
static int caller_lines = -1;
|
||||
|
||||
static char *cwd;
|
||||
static int cwdlen;
|
||||
|
||||
struct alloc_stat {
|
||||
union {
|
||||
struct {
|
||||
char *name;
|
||||
u64 call_site;
|
||||
};
|
||||
u64 ptr;
|
||||
};
|
||||
u64 bytes_req;
|
||||
u64 bytes_alloc;
|
||||
u32 hit;
|
||||
|
||||
struct rb_node node;
|
||||
};
|
||||
|
||||
static struct rb_root root_alloc_stat;
|
||||
static struct rb_root root_alloc_sorted;
|
||||
static struct rb_root root_caller_stat;
|
||||
static struct rb_root root_caller_sorted;
|
||||
|
||||
static unsigned long total_requested, total_allocated;
|
||||
|
||||
struct raw_event_sample {
|
||||
u32 size;
|
||||
char data[0];
|
||||
};
|
||||
|
||||
static int
|
||||
process_comm_event(event_t *event, unsigned long offset, unsigned long head)
|
||||
{
|
||||
struct thread *thread = threads__findnew(event->comm.pid);
|
||||
|
||||
dump_printf("%p [%p]: PERF_RECORD_COMM: %s:%d\n",
|
||||
(void *)(offset + head),
|
||||
(void *)(long)(event->header.size),
|
||||
event->comm.comm, event->comm.pid);
|
||||
|
||||
if (thread == NULL ||
|
||||
thread__set_comm(thread, event->comm.comm)) {
|
||||
dump_printf("problem processing PERF_RECORD_COMM, skipping event.\n");
|
||||
return -1;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void insert_alloc_stat(unsigned long ptr,
|
||||
int bytes_req, int bytes_alloc)
|
||||
{
|
||||
struct rb_node **node = &root_alloc_stat.rb_node;
|
||||
struct rb_node *parent = NULL;
|
||||
struct alloc_stat *data = NULL;
|
||||
|
||||
if (!alloc_flag)
|
||||
return;
|
||||
|
||||
while (*node) {
|
||||
parent = *node;
|
||||
data = rb_entry(*node, struct alloc_stat, node);
|
||||
|
||||
if (ptr > data->ptr)
|
||||
node = &(*node)->rb_right;
|
||||
else if (ptr < data->ptr)
|
||||
node = &(*node)->rb_left;
|
||||
else
|
||||
break;
|
||||
}
|
||||
|
||||
if (data && data->ptr == ptr) {
|
||||
data->hit++;
|
||||
data->bytes_req += bytes_req;
|
||||
data->bytes_alloc += bytes_req;
|
||||
} else {
|
||||
data = malloc(sizeof(*data));
|
||||
data->ptr = ptr;
|
||||
data->hit = 1;
|
||||
data->bytes_req = bytes_req;
|
||||
data->bytes_alloc = bytes_alloc;
|
||||
|
||||
rb_link_node(&data->node, parent, node);
|
||||
rb_insert_color(&data->node, &root_alloc_stat);
|
||||
}
|
||||
}
|
||||
|
||||
static void insert_caller_stat(unsigned long call_site,
|
||||
int bytes_req, int bytes_alloc)
|
||||
{
|
||||
struct rb_node **node = &root_caller_stat.rb_node;
|
||||
struct rb_node *parent = NULL;
|
||||
struct alloc_stat *data = NULL;
|
||||
|
||||
if (!caller_flag)
|
||||
return;
|
||||
|
||||
while (*node) {
|
||||
parent = *node;
|
||||
data = rb_entry(*node, struct alloc_stat, node);
|
||||
|
||||
if (call_site > data->call_site)
|
||||
node = &(*node)->rb_right;
|
||||
else if (call_site < data->call_site)
|
||||
node = &(*node)->rb_left;
|
||||
else
|
||||
break;
|
||||
}
|
||||
|
||||
if (data && data->call_site == call_site) {
|
||||
data->hit++;
|
||||
data->bytes_req += bytes_req;
|
||||
data->bytes_alloc += bytes_req;
|
||||
} else {
|
||||
data = malloc(sizeof(*data));
|
||||
data->call_site = call_site;
|
||||
data->hit = 1;
|
||||
data->bytes_req = bytes_req;
|
||||
data->bytes_alloc = bytes_alloc;
|
||||
|
||||
rb_link_node(&data->node, parent, node);
|
||||
rb_insert_color(&data->node, &root_caller_stat);
|
||||
}
|
||||
}
|
||||
|
||||
static void process_alloc_event(struct raw_event_sample *raw,
|
||||
struct event *event,
|
||||
int cpu __used,
|
||||
u64 timestamp __used,
|
||||
struct thread *thread __used,
|
||||
int node __used)
|
||||
{
|
||||
unsigned long call_site;
|
||||
unsigned long ptr;
|
||||
int bytes_req;
|
||||
int bytes_alloc;
|
||||
|
||||
ptr = raw_field_value(event, "ptr", raw->data);
|
||||
call_site = raw_field_value(event, "call_site", raw->data);
|
||||
bytes_req = raw_field_value(event, "bytes_req", raw->data);
|
||||
bytes_alloc = raw_field_value(event, "bytes_alloc", raw->data);
|
||||
|
||||
insert_alloc_stat(ptr, bytes_req, bytes_alloc);
|
||||
insert_caller_stat(call_site, bytes_req, bytes_alloc);
|
||||
|
||||
total_requested += bytes_req;
|
||||
total_allocated += bytes_alloc;
|
||||
}
|
||||
|
||||
static void process_free_event(struct raw_event_sample *raw __used,
|
||||
struct event *event __used,
|
||||
int cpu __used,
|
||||
u64 timestamp __used,
|
||||
struct thread *thread __used)
|
||||
{
|
||||
}
|
||||
|
||||
static void
|
||||
process_raw_event(event_t *raw_event __used, void *more_data,
|
||||
int cpu, u64 timestamp, struct thread *thread)
|
||||
{
|
||||
struct raw_event_sample *raw = more_data;
|
||||
struct event *event;
|
||||
int type;
|
||||
|
||||
type = trace_parse_common_type(raw->data);
|
||||
event = trace_find_event(type);
|
||||
|
||||
if (!strcmp(event->name, "kmalloc") ||
|
||||
!strcmp(event->name, "kmem_cache_alloc")) {
|
||||
process_alloc_event(raw, event, cpu, timestamp, thread, 0);
|
||||
return;
|
||||
}
|
||||
|
||||
if (!strcmp(event->name, "kmalloc_node") ||
|
||||
!strcmp(event->name, "kmem_cache_alloc_node")) {
|
||||
process_alloc_event(raw, event, cpu, timestamp, thread, 1);
|
||||
return;
|
||||
}
|
||||
|
||||
if (!strcmp(event->name, "kfree") ||
|
||||
!strcmp(event->name, "kmem_cache_free")) {
|
||||
process_free_event(raw, event, cpu, timestamp, thread);
|
||||
return;
|
||||
}
|
||||
}
|
||||
|
||||
static int
|
||||
process_sample_event(event_t *event, unsigned long offset, unsigned long head)
|
||||
{
|
||||
u64 ip = event->ip.ip;
|
||||
u64 timestamp = -1;
|
||||
u32 cpu = -1;
|
||||
u64 period = 1;
|
||||
void *more_data = event->ip.__more_data;
|
||||
struct thread *thread = threads__findnew(event->ip.pid);
|
||||
|
||||
if (sample_type & PERF_SAMPLE_TIME) {
|
||||
timestamp = *(u64 *)more_data;
|
||||
more_data += sizeof(u64);
|
||||
}
|
||||
|
||||
if (sample_type & PERF_SAMPLE_CPU) {
|
||||
cpu = *(u32 *)more_data;
|
||||
more_data += sizeof(u32);
|
||||
more_data += sizeof(u32); /* reserved */
|
||||
}
|
||||
|
||||
if (sample_type & PERF_SAMPLE_PERIOD) {
|
||||
period = *(u64 *)more_data;
|
||||
more_data += sizeof(u64);
|
||||
}
|
||||
|
||||
dump_printf("%p [%p]: PERF_RECORD_SAMPLE (IP, %d): %d/%d: %p period: %Ld\n",
|
||||
(void *)(offset + head),
|
||||
(void *)(long)(event->header.size),
|
||||
event->header.misc,
|
||||
event->ip.pid, event->ip.tid,
|
||||
(void *)(long)ip,
|
||||
(long long)period);
|
||||
|
||||
if (thread == NULL) {
|
||||
pr_debug("problem processing %d event, skipping it.\n",
|
||||
event->header.type);
|
||||
return -1;
|
||||
}
|
||||
|
||||
dump_printf(" ... thread: %s:%d\n", thread->comm, thread->pid);
|
||||
|
||||
process_raw_event(event, more_data, cpu, timestamp, thread);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int sample_type_check(u64 type)
|
||||
{
|
||||
sample_type = type;
|
||||
|
||||
if (!(sample_type & PERF_SAMPLE_RAW)) {
|
||||
fprintf(stderr,
|
||||
"No trace sample to read. Did you call perf record "
|
||||
"without -R?");
|
||||
return -1;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static struct perf_file_handler file_handler = {
|
||||
.process_sample_event = process_sample_event,
|
||||
.process_comm_event = process_comm_event,
|
||||
.sample_type_check = sample_type_check,
|
||||
};
|
||||
|
||||
static int read_events(void)
|
||||
{
|
||||
register_idle_thread();
|
||||
register_perf_file_handler(&file_handler);
|
||||
|
||||
return mmap_dispatch_perf_file(&header, input_name, 0, 0,
|
||||
&cwdlen, &cwd);
|
||||
}
|
||||
|
||||
static double fragmentation(unsigned long n_req, unsigned long n_alloc)
|
||||
{
|
||||
if (n_alloc == 0)
|
||||
return 0.0;
|
||||
else
|
||||
return 100.0 - (100.0 * n_req / n_alloc);
|
||||
}
|
||||
|
||||
static void __print_result(struct rb_root *root, int n_lines, int is_caller)
|
||||
{
|
||||
struct rb_node *next;
|
||||
|
||||
printf("\n ------------------------------------------------------------------------------\n");
|
||||
if (is_caller)
|
||||
printf(" Callsite |");
|
||||
else
|
||||
printf(" Alloc Ptr |");
|
||||
printf(" Total_alloc/Per | Total_req/Per | Hit | Fragmentation\n");
|
||||
printf(" ------------------------------------------------------------------------------\n");
|
||||
|
||||
next = rb_first(root);
|
||||
|
||||
while (next && n_lines--) {
|
||||
struct alloc_stat *data;
|
||||
|
||||
data = rb_entry(next, struct alloc_stat, node);
|
||||
|
||||
printf(" %-16p | %8llu/%-6lu | %8llu/%-6lu | %6lu | %8.3f%%\n",
|
||||
is_caller ? (void *)(unsigned long)data->call_site :
|
||||
(void *)(unsigned long)data->ptr,
|
||||
(unsigned long long)data->bytes_alloc,
|
||||
(unsigned long)data->bytes_alloc / data->hit,
|
||||
(unsigned long long)data->bytes_req,
|
||||
(unsigned long)data->bytes_req / data->hit,
|
||||
(unsigned long)data->hit,
|
||||
fragmentation(data->bytes_req, data->bytes_alloc));
|
||||
|
||||
next = rb_next(next);
|
||||
}
|
||||
|
||||
if (n_lines == -1)
|
||||
printf(" ... | ... | ... | ... | ... \n");
|
||||
|
||||
printf(" ------------------------------------------------------------------------------\n");
|
||||
}
|
||||
|
||||
static void print_summary(void)
|
||||
{
|
||||
printf("\nSUMMARY\n=======\n");
|
||||
printf("Total bytes requested: %lu\n", total_requested);
|
||||
printf("Total bytes allocated: %lu\n", total_allocated);
|
||||
printf("Total bytes wasted on internal fragmentation: %lu\n",
|
||||
total_allocated - total_requested);
|
||||
printf("Internal fragmentation: %f%%\n",
|
||||
fragmentation(total_requested, total_allocated));
|
||||
}
|
||||
|
||||
static void print_result(void)
|
||||
{
|
||||
if (caller_flag)
|
||||
__print_result(&root_caller_sorted, caller_lines, 1);
|
||||
if (alloc_flag)
|
||||
__print_result(&root_alloc_sorted, alloc_lines, 0);
|
||||
print_summary();
|
||||
}
|
||||
|
||||
static void sort_insert(struct rb_root *root, struct alloc_stat *data,
|
||||
sort_fn_t sort_fn)
|
||||
{
|
||||
struct rb_node **new = &(root->rb_node);
|
||||
struct rb_node *parent = NULL;
|
||||
|
||||
while (*new) {
|
||||
struct alloc_stat *this;
|
||||
int cmp;
|
||||
|
||||
this = rb_entry(*new, struct alloc_stat, node);
|
||||
parent = *new;
|
||||
|
||||
cmp = sort_fn(data, this);
|
||||
|
||||
if (cmp > 0)
|
||||
new = &((*new)->rb_left);
|
||||
else
|
||||
new = &((*new)->rb_right);
|
||||
}
|
||||
|
||||
rb_link_node(&data->node, parent, new);
|
||||
rb_insert_color(&data->node, root);
|
||||
}
|
||||
|
||||
static void __sort_result(struct rb_root *root, struct rb_root *root_sorted,
|
||||
sort_fn_t sort_fn)
|
||||
{
|
||||
struct rb_node *node;
|
||||
struct alloc_stat *data;
|
||||
|
||||
for (;;) {
|
||||
node = rb_first(root);
|
||||
if (!node)
|
||||
break;
|
||||
|
||||
rb_erase(node, root);
|
||||
data = rb_entry(node, struct alloc_stat, node);
|
||||
sort_insert(root_sorted, data, sort_fn);
|
||||
}
|
||||
}
|
||||
|
||||
static void sort_result(void)
|
||||
{
|
||||
__sort_result(&root_alloc_stat, &root_alloc_sorted, alloc_sort_fn);
|
||||
__sort_result(&root_caller_stat, &root_caller_sorted, caller_sort_fn);
|
||||
}
|
||||
|
||||
static int __cmd_kmem(void)
|
||||
{
|
||||
setup_pager();
|
||||
read_events();
|
||||
sort_result();
|
||||
print_result();
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static const char * const kmem_usage[] = {
|
||||
"perf kmem [<options>] {record}",
|
||||
NULL
|
||||
};
|
||||
|
||||
|
||||
static int ptr_cmp(struct alloc_stat *l, struct alloc_stat *r)
|
||||
{
|
||||
if (l->ptr < r->ptr)
|
||||
return -1;
|
||||
else if (l->ptr > r->ptr)
|
||||
return 1;
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int callsite_cmp(struct alloc_stat *l, struct alloc_stat *r)
|
||||
{
|
||||
if (l->call_site < r->call_site)
|
||||
return -1;
|
||||
else if (l->call_site > r->call_site)
|
||||
return 1;
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int bytes_cmp(struct alloc_stat *l, struct alloc_stat *r)
|
||||
{
|
||||
if (l->bytes_alloc < r->bytes_alloc)
|
||||
return -1;
|
||||
else if (l->bytes_alloc > r->bytes_alloc)
|
||||
return 1;
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int parse_sort_opt(const struct option *opt __used,
|
||||
const char *arg, int unset __used)
|
||||
{
|
||||
sort_fn_t sort_fn;
|
||||
|
||||
if (!arg)
|
||||
return -1;
|
||||
|
||||
if (strcmp(arg, "ptr") == 0)
|
||||
sort_fn = ptr_cmp;
|
||||
else if (strcmp(arg, "call_site") == 0)
|
||||
sort_fn = callsite_cmp;
|
||||
else if (strcmp(arg, "bytes") == 0)
|
||||
sort_fn = bytes_cmp;
|
||||
else
|
||||
return -1;
|
||||
|
||||
if (caller_flag > alloc_flag)
|
||||
caller_sort_fn = sort_fn;
|
||||
else
|
||||
alloc_sort_fn = sort_fn;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int parse_stat_opt(const struct option *opt __used,
|
||||
const char *arg, int unset __used)
|
||||
{
|
||||
if (!arg)
|
||||
return -1;
|
||||
|
||||
if (strcmp(arg, "alloc") == 0)
|
||||
alloc_flag = (caller_flag + 1);
|
||||
else if (strcmp(arg, "caller") == 0)
|
||||
caller_flag = (alloc_flag + 1);
|
||||
else
|
||||
return -1;
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int parse_line_opt(const struct option *opt __used,
|
||||
const char *arg, int unset __used)
|
||||
{
|
||||
int lines;
|
||||
|
||||
if (!arg)
|
||||
return -1;
|
||||
|
||||
lines = strtoul(arg, NULL, 10);
|
||||
|
||||
if (caller_flag > alloc_flag)
|
||||
caller_lines = lines;
|
||||
else
|
||||
alloc_lines = lines;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static const struct option kmem_options[] = {
|
||||
OPT_STRING('i', "input", &input_name, "file",
|
||||
"input file name"),
|
||||
OPT_CALLBACK(0, "stat", NULL, "<alloc>|<caller>",
|
||||
"stat selector, Pass 'alloc' or 'caller'.",
|
||||
parse_stat_opt),
|
||||
OPT_CALLBACK('s', "sort", NULL, "key",
|
||||
"sort by key: ptr, call_site, hit, bytes",
|
||||
parse_sort_opt),
|
||||
OPT_CALLBACK('l', "line", NULL, "num",
|
||||
"show n lins",
|
||||
parse_line_opt),
|
||||
OPT_END()
|
||||
};
|
||||
|
||||
static const char *record_args[] = {
|
||||
"record",
|
||||
"-a",
|
||||
"-R",
|
||||
"-M",
|
||||
"-f",
|
||||
"-c", "1",
|
||||
"-e", "kmem:kmalloc",
|
||||
"-e", "kmem:kmalloc_node",
|
||||
"-e", "kmem:kfree",
|
||||
"-e", "kmem:kmem_cache_alloc",
|
||||
"-e", "kmem:kmem_cache_alloc_node",
|
||||
"-e", "kmem:kmem_cache_free",
|
||||
};
|
||||
|
||||
static int __cmd_record(int argc, const char **argv)
|
||||
{
|
||||
unsigned int rec_argc, i, j;
|
||||
const char **rec_argv;
|
||||
|
||||
rec_argc = ARRAY_SIZE(record_args) + argc - 1;
|
||||
rec_argv = calloc(rec_argc + 1, sizeof(char *));
|
||||
|
||||
for (i = 0; i < ARRAY_SIZE(record_args); i++)
|
||||
rec_argv[i] = strdup(record_args[i]);
|
||||
|
||||
for (j = 1; j < (unsigned int)argc; j++, i++)
|
||||
rec_argv[i] = argv[j];
|
||||
|
||||
return cmd_record(i, rec_argv, NULL);
|
||||
}
|
||||
|
||||
int cmd_kmem(int argc, const char **argv, const char *prefix __used)
|
||||
{
|
||||
symbol__init(0);
|
||||
|
||||
argc = parse_options(argc, argv, kmem_options, kmem_usage, 0);
|
||||
|
||||
if (argc && !strncmp(argv[0], "rec", 3))
|
||||
return __cmd_record(argc, argv);
|
||||
else if (argc)
|
||||
usage_with_options(kmem_usage, kmem_options);
|
||||
|
||||
if (!alloc_sort_fn)
|
||||
alloc_sort_fn = bytes_cmp;
|
||||
if (!caller_sort_fn)
|
||||
caller_sort_fn = bytes_cmp;
|
||||
|
||||
return __cmd_kmem();
|
||||
}
|
||||
|
||||
|
|
@ -28,5 +28,6 @@ extern int cmd_top(int argc, const char **argv, const char *prefix);
|
|||
extern int cmd_trace(int argc, const char **argv, const char *prefix);
|
||||
extern int cmd_version(int argc, const char **argv, const char *prefix);
|
||||
extern int cmd_probe(int argc, const char **argv, const char *prefix);
|
||||
extern int cmd_kmem(int argc, const char **argv, const char *prefix);
|
||||
|
||||
#endif
|
||||
|
|
|
|||
|
|
@ -285,9 +285,9 @@ static void handle_internal_command(int argc, const char **argv)
|
|||
{
|
||||
const char *cmd = argv[0];
|
||||
static struct cmd_struct commands[] = {
|
||||
{ "buildid-list", cmd_buildid_list, 0 },
|
||||
{ "help", cmd_help, 0 },
|
||||
{ "list", cmd_list, 0 },
|
||||
{ "buildid-list", cmd_buildid_list, 0 },
|
||||
{ "record", cmd_record, 0 },
|
||||
{ "report", cmd_report, 0 },
|
||||
{ "bench", cmd_bench, 0 },
|
||||
|
|
@ -299,6 +299,7 @@ static void handle_internal_command(int argc, const char **argv)
|
|||
{ "trace", cmd_trace, 0 },
|
||||
{ "sched", cmd_sched, 0 },
|
||||
{ "probe", cmd_probe, 0 },
|
||||
{ "kmem", cmd_kmem, 0 },
|
||||
};
|
||||
unsigned int i;
|
||||
static const char ext[] = STRIP_EXTENSION;
|
||||
|
|
|
|||
Loading…
Reference in New Issue