From ef281a196d66b8bc2d067a3704712e5b93691fbc Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Sat, 13 Jun 2009 15:40:35 +0200 Subject: [PATCH] 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 Cc: Mike Galbraith Cc: Paul Mackerras Cc: Arnaldo Carvalho de Melo LKML-Reference: Signed-off-by: Ingo Molnar --- tools/perf/Makefile | 2 +- tools/perf/builtin-stat.c | 46 ++++++++++++++++++++++++--------------- 2 files changed, 30 insertions(+), 18 deletions(-) diff --git a/tools/perf/Makefile b/tools/perf/Makefile index 0cbd5d6874e..e8346f95fbb 100644 --- a/tools/perf/Makefile +++ b/tools/perf/Makefile @@ -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 = -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_LDFLAGS = $(LDFLAGS) STRIP ?= strip diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c index 9eb42b1ae78..e5b3c0ff03a 100644 --- a/tools/perf/builtin-stat.c +++ b/tools/perf/builtin-stat.c @@ -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; @@ -335,6 +335,13 @@ static void normalize(__u64 *val) *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: */ @@ -342,16 +349,23 @@ static void calc_avg(void) { int i, j; + if (verbose > 1) + fprintf(stderr, "\n"); + for (i = 0; i < run_count; i++) { - runtime_nsecs_avg += runtime_nsecs[i]; - walltime_nsecs_avg += walltime_nsecs[i]; - runtime_cycles_avg += runtime_cycles[i]; + update_avg("runtime", 0, &runtime_nsecs_avg, runtime_nsecs + i); + update_avg("walltime", 0, &walltime_nsecs_avg, walltime_nsecs + i); + update_avg("runtime_cycles", 0, &runtime_cycles_avg, runtime_cycles + i); for (j = 0; j < nr_counters; j++) { - event_res_avg[j][0] += event_res[i][j][0]; - event_res_avg[j][1] += event_res[i][j][1]; - event_res_avg[j][2] += event_res[i][j][2]; - event_scaled_avg[j] += event_scaled[i][j]; + update_avg("counter/0", j, + event_res_avg[j]+0, event_res[i][j]+0); + update_avg("counter/1", 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; @@ -382,14 +396,14 @@ static void calc_avg(void) } } - normalize(&runtime_nsecs_noise); - normalize(&walltime_nsecs_noise); - normalize(&runtime_cycles_noise); + normalize_noise(&runtime_nsecs_noise); + normalize_noise(&walltime_nsecs_noise); + normalize_noise(&runtime_cycles_noise); for (j = 0; j < nr_counters; j++) { - normalize(&event_res_noise[j][0]); - normalize(&event_res_noise[j][1]); - normalize(&event_res_noise[j][2]); + normalize_noise(&event_res_noise[j][0]); + normalize_noise(&event_res_noise[j][1]); + normalize_noise(&event_res_noise[j][2]); } } @@ -399,8 +413,6 @@ static void print_stat(int argc, const char **argv) calc_avg(); - run_idx = 0; - fflush(stdout); fprintf(stderr, "\n");