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Commit ef281a19 authored by Ingo Molnar's avatar Ingo Molnar
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perf stat: Enable raw data to be printed 

If -vv (very verbose) is specified, print out raw data
in the following format:

$ perf stat -vv -r 3 ./loop_1b_instructions

[ perf stat: executing run #1 ... ]
[ perf stat: executing run #2 ... ]
[ perf stat: executing run #3 ... ]

debug:              runtime[0]: 235871872
debug:             walltime[0]: 236646752
debug:       runtime_cycles[0]: 755150182
debug:            counter/0[0]: 235871872
debug:            counter/1[0]: 235871872
debug:            counter/2[0]: 235871872
debug:               scaled[0]: 0
debug:            counter/0[1]: 2
debug:            counter/1[1]: 235870662
debug:            counter/2[1]: 235870662
debug:               scaled[1]: 0
debug:            counter/0[2]: 1
debug:            counter/1[2]: 235870437
debug:            counter/2[2]: 235870437
debug:               scaled[2]: 0
debug:            counter/0[3]: 140
debug:            counter/1[3]: 235870298
debug:            counter/2[3]: 235870298
debug:               scaled[3]: 0
debug:            counter/0[4]: 755150182
debug:            counter/1[4]: 235870145
debug:            counter/2[4]: 235870145
debug:               scaled[4]: 0
debug:            counter/0[5]: 1001411258
debug:            counter/1[5]: 235868838
debug:            counter/2[5]: 235868838
debug:               scaled[5]: 0
debug:            counter/0[6]: 27897
debug:            counter/1[6]: 235868560
debug:            counter/2[6]: 235868560
debug:               scaled[6]: 0
debug:            counter/0[7]: 2910
debug:            counter/1[7]: 235868151
debug:            counter/2[7]: 235868151
debug:               scaled[7]: 0
debug:              runtime[0]: 235980257
debug:             walltime[0]: 236770942
debug:       runtime_cycles[0]: 755114546
debug:            counter/0[0]: 235980257
debug:            counter/1[0]: 235980257
debug:            counter/2[0]: 235980257
debug:               scaled[0]: 0
debug:            counter/0[1]: 3
debug:            counter/1[1]: 235980049
debug:            counter/2[1]: 235980049
debug:               scaled[1]: 0
debug:            counter/0[2]: 1
debug:            counter/1[2]: 235979907
debug:            counter/2[2]: 235979907
debug:               scaled[2]: 0
debug:            counter/0[3]: 135
debug:            counter/1[3]: 235979780
debug:            counter/2[3]: 235979780
debug:               scaled[3]: 0
debug:            counter/0[4]: 755114546
debug:            counter/1[4]: 235979652
debug:            counter/2[4]: 235979652
debug:               scaled[4]: 0
debug:            counter/0[5]: 1001439771
debug:            counter/1[5]: 235979304
debug:            counter/2[5]: 235979304
debug:               scaled[5]: 0
debug:            counter/0[6]: 23723
debug:            counter/1[6]: 235979050
debug:            counter/2[6]: 235979050
debug:               scaled[6]: 0
debug:            counter/0[7]: 2213
debug:            counter/1[7]: 235978820
debug:            counter/2[7]: 235978820
debug:               scaled[7]: 0
debug:              runtime[0]: 235888002
debug:             walltime[0]: 236700533
debug:       runtime_cycles[0]: 754881504
debug:            counter/0[0]: 235888002
debug:            counter/1[0]: 235888002
debug:            counter/2[0]: 235888002
debug:               scaled[0]: 0
debug:            counter/0[1]: 2
debug:            counter/1[1]: 235887793
debug:            counter/2[1]: 235887793
debug:               scaled[1]: 0
debug:            counter/0[2]: 1
debug:            counter/1[2]: 235887645
debug:            counter/2[2]: 235887645
debug:               scaled[2]: 0
debug:            counter/0[3]: 135
debug:            counter/1[3]: 235887499
debug:            counter/2[3]: 235887499
debug:               scaled[3]: 0
debug:            counter/0[4]: 754881504
debug:            counter/1[4]: 235887368
debug:            counter/2[4]: 235887368
debug:               scaled[4]: 0
debug:            counter/0[5]: 1001401731
debug:            counter/1[5]: 235887024
debug:            counter/2[5]: 235887024
debug:               scaled[5]: 0
debug:            counter/0[6]: 24212
debug:            counter/1[6]: 235886786
debug:            counter/2[6]: 235886786
debug:               scaled[6]: 0
debug:            counter/0[7]: 1824
debug:            counter/1[7]: 235886560
debug:            counter/2[7]: 235886560
debug:               scaled[7]: 0

 Performance counter stats for '/home/mingo/loop_1b_instructions' (3 runs):

     235.913377  task-clock-msecs     #      0.997 CPUs    ( +-   0.011% )
              2  context-switches     #      0.000 M/sec   ( +-   0.000% )
              1  CPU-migrations       #      0.000 M/sec   ( +-   0.000% )
            136  page-faults          #      0.001 M/sec   ( +-   0.730% )
      755048744  cycles               #   3200.534 M/sec   ( +-   0.009% )
     1001417586  instructions         #      1.326 IPC     ( +-   0.001% )
          25277  cache-references     #      0.107 M/sec   ( +-   3.988% )
           2315  cache-misses         #      0.010 M/sec   ( +-   9.845% )

    0.236706075  seconds time elapsed.

This allows the summary stats to be validated.

Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
LKML-Reference: <new-submission>
Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
parent 42202dd5
Hide whitespace changes
Inline Side-by-side
Showing with 30 additions and 18 deletions
tools/perf/Makefile
View file @ ef281a19
...@@ -160,7 +160,7 @@ uname_V := $(shell sh -c 'uname -v 2>/dev/null || echo not') ...@@ -160,7 +160,7 @@ uname_V := $(shell sh -c 'uname -v 2>/dev/null || echo not')
# CFLAGS and LDFLAGS are for the users to override from the command line. # CFLAGS and LDFLAGS are for the users to override from the command line.
CFLAGS = -ggdb3 -Wall -Werror -Wstrict-prototypes -Wmissing-declarations -Wmissing-prototypes -std=gnu99 -Wdeclaration-after-statement -O6 CFLAGS = -ggdb3 -Wall -Werror -Wstrict-prototypes -Wmissing-declarations -Wmissing-prototypes -std=gnu99 -Wdeclaration-after-statement -O6
LDFLAGS = -lpthread -lrt -lelf LDFLAGS = -lpthread -lrt -lelf -lm
ALL_CFLAGS = $(CFLAGS) ALL_CFLAGS = $(CFLAGS)
ALL_LDFLAGS = $(LDFLAGS) ALL_LDFLAGS = $(LDFLAGS)
STRIP ?= strip STRIP ?= strip
......
tools/perf/builtin-stat.c
View file @ ef281a19
...@@ -324,9 +324,9 @@ static void print_counter(int counter) ...@@ -324,9 +324,9 @@ static void print_counter(int counter)
} }
/* /*
* Normalize noise values down to stddev: * normalize_noise noise values down to stddev:
*/ */
static void normalize(__u64 *val) static void normalize_noise(__u64 *val)
{ {
double res; double res;
...@@ -335,6 +335,13 @@ static void normalize(__u64 *val) ...@@ -335,6 +335,13 @@ static void normalize(__u64 *val)
*val = (__u64)res; *val = (__u64)res;
} }
static void update_avg(const char *name, int idx, __u64 *avg, __u64 *val)
{
*avg += *val;
if (verbose > 1)
fprintf(stderr, "debug: %20s[%d]: %Ld\n", name, idx, *val);
}
/* /*
* Calculate the averages and noises: * Calculate the averages and noises:
*/ */
...@@ -342,16 +349,23 @@ static void calc_avg(void) ...@@ -342,16 +349,23 @@ static void calc_avg(void)
{ {
int i, j; int i, j;
if (verbose > 1)
fprintf(stderr, "\n");
for (i = 0; i < run_count; i++) { for (i = 0; i < run_count; i++) {
runtime_nsecs_avg += runtime_nsecs[i]; update_avg("runtime", 0, &runtime_nsecs_avg, runtime_nsecs + i);
walltime_nsecs_avg += walltime_nsecs[i]; update_avg("walltime", 0, &walltime_nsecs_avg, walltime_nsecs + i);
runtime_cycles_avg += runtime_cycles[i]; update_avg("runtime_cycles", 0, &runtime_cycles_avg, runtime_cycles + i);
for (j = 0; j < nr_counters; j++) { for (j = 0; j < nr_counters; j++) {
event_res_avg[j][0] += event_res[i][j][0]; update_avg("counter/0", j,
event_res_avg[j][1] += event_res[i][j][1]; event_res_avg[j]+0, event_res[i][j]+0);
event_res_avg[j][2] += event_res[i][j][2]; update_avg("counter/1", j,
event_scaled_avg[j] += event_scaled[i][j]; event_res_avg[j]+1, event_res[i][j]+1);
update_avg("counter/2", j,
event_res_avg[j]+2, event_res[i][j]+2);
update_avg("scaled", j,
event_scaled_avg + j, event_scaled[i]+j);
} }
} }
runtime_nsecs_avg /= run_count; runtime_nsecs_avg /= run_count;
...@@ -382,14 +396,14 @@ static void calc_avg(void) ...@@ -382,14 +396,14 @@ static void calc_avg(void)
} }
} }
normalize(&runtime_nsecs_noise); normalize_noise(&runtime_nsecs_noise);
normalize(&walltime_nsecs_noise); normalize_noise(&walltime_nsecs_noise);
normalize(&runtime_cycles_noise); normalize_noise(&runtime_cycles_noise);
for (j = 0; j < nr_counters; j++) { for (j = 0; j < nr_counters; j++) {
normalize(&event_res_noise[j][0]); normalize_noise(&event_res_noise[j][0]);
normalize(&event_res_noise[j][1]); normalize_noise(&event_res_noise[j][1]);
normalize(&event_res_noise[j][2]); normalize_noise(&event_res_noise[j][2]);
} }
} }
...@@ -399,8 +413,6 @@ static void print_stat(int argc, const char **argv) ...@@ -399,8 +413,6 @@ static void print_stat(int argc, const char **argv)
calc_avg(); calc_avg();
run_idx = 0;
fflush(stdout); fflush(stdout);
fprintf(stderr, "\n"); fprintf(stderr, "\n");
......
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