UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

perf stat: Introduce perf_counts function 

Introducing perf_counts function, that returns
'struct perf_counts_values' pointer for given cpu.

Also moving perf_counts* structures into stat.h.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1435310967-14570-5-git-send-email-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Jiri Olsa 2015-06-26 11:29:09 +02:00 committed by Arnaldo Carvalho de Melo
parent 134aa44f6b
commit 1ac77e1ce8
6 changed files with 37 additions and 30 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
tools/perf/builtin-stat.c
View File

@ -316,7 +316,7 @@ static int read_cb(struct perf_evsel *evsel, int cpu, int thread __maybe_unused,
if (!evsel->snapshot)
perf_evsel__compute_deltas(evsel, cpu, count);
perf_counts_values__scale(count, scale, NULL);
evsel->counts->cpu[cpu] = *count;
*perf_counts(evsel->counts, cpu) = *count;
if (aggr_mode == AGGR_NONE)
perf_stat__update_shadow_stats(evsel, count->values, cpu);
break;
@ -805,9 +805,9 @@ static void print_aggr(char *prefix)
s2 = aggr_get_id(evsel_list->cpus, cpu2);
if (s2 != id)
continue;
val += counter->counts->cpu[cpu].val;
ena += counter->counts->cpu[cpu].ena;
run += counter->counts->cpu[cpu].run;
val += perf_counts(counter->counts, cpu)->val;
ena += perf_counts(counter->counts, cpu)->ena;
run += perf_counts(counter->counts, cpu)->run;
nr++;
}
if (prefix)
@ -915,9 +915,9 @@ static void print_counter(struct perf_evsel *counter, char *prefix)
int cpu;
for (cpu = 0; cpu < perf_evsel__nr_cpus(counter); cpu++) {
val = counter->counts->cpu[cpu].val;
ena = counter->counts->cpu[cpu].ena;
run = counter->counts->cpu[cpu].run;
val = perf_counts(counter->counts, cpu)->val;
ena = perf_counts(counter->counts, cpu)->ena;
run = perf_counts(counter->counts, cpu)->run;
if (prefix)
fprintf(output, "%s", prefix);

4
tools/perf/tests/openat-syscall-all-cpus.c
View File

@ -98,9 +98,9 @@ int test__openat_syscall_event_on_all_cpus(void)
}
expected = nr_openat_calls + cpu;
if (evsel->counts->cpu[cpu].val != expected) {
if (perf_counts(evsel->counts, cpu)->val != expected) {
pr_debug("perf_evsel__read_on_cpu: expected to intercept %d calls on cpu %d, got %" PRIu64 "\n",
expected, cpus->map[cpu], evsel->counts->cpu[cpu].val);
expected, cpus->map[cpu], perf_counts(evsel->counts, cpu)->val);
err = -1;
}
}

2
tools/perf/tests/openat-syscall.c
View File

@ -44,7 +44,7 @@ int test__openat_syscall_event(void)
goto out_close_fd;
}
if (evsel->counts->cpu[0].val != nr_openat_calls) {
if (perf_counts(evsel->counts, 0)->val != nr_openat_calls) {
pr_debug("perf_evsel__read_on_cpu: expected to intercept %d calls, got %" PRIu64 "\n",
nr_openat_calls, evsel->counts->cpu[0].val);
goto out_close_fd;

6
tools/perf/util/evsel.c
View File

@ -910,8 +910,8 @@ void perf_evsel__compute_deltas(struct perf_evsel *evsel, int cpu,
tmp = evsel->prev_raw_counts->aggr;
evsel->prev_raw_counts->aggr = *count;
} else {
tmp = evsel->prev_raw_counts->cpu[cpu];
evsel->prev_raw_counts->cpu[cpu] = *count;
tmp = *perf_counts(evsel->prev_raw_counts, cpu);
*perf_counts(evsel->prev_raw_counts, cpu) = *count;
}
count->val = count->val - tmp.val;
@ -972,7 +972,7 @@ int __perf_evsel__read_on_cpu(struct perf_evsel *evsel,
perf_evsel__compute_deltas(evsel, cpu, &count);
perf_counts_values__scale(&count, scale, NULL);
evsel->counts->cpu[cpu] = count;
*perf_counts(evsel->counts, cpu) = count;
return 0;
}

18
tools/perf/util/evsel.h
View File

@ -9,23 +9,7 @@
#include "xyarray.h"
#include "symbol.h"
#include "cpumap.h"
struct perf_counts_values {
union {
struct {
u64 val;
u64 ena;
u64 run;
};
u64 values[3];
};
};
struct perf_counts {
s8 scaled;
struct perf_counts_values aggr;
struct perf_counts_values cpu[];
};
#include "stat.h"
struct perf_evsel;

23
tools/perf/util/stat.h
View File

@ -31,6 +31,29 @@ enum aggr_mode {
AGGR_CORE,
};
struct perf_counts_values {
union {
struct {
u64 val;
u64 ena;
u64 run;
};
u64 values[3];
};
};
struct perf_counts {
s8 scaled;
struct perf_counts_values aggr;
struct perf_counts_values cpu[];
};
static inline struct perf_counts_values*
perf_counts(struct perf_counts *counts, int cpu)
{
return &counts->cpu[cpu];
}
void update_stats(struct stats *stats, u64 val);
double avg_stats(struct stats *stats);
double stddev_stats(struct stats *stats);