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perf stat: Reorganize output 

- use IPC for the instruction normalization output
 - CPUs for the CPU utilization factor value.
 - print out time elapsed like the other rows
 - tidy up the task-clocks/cpu-clocks printout

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: Ingo Molnar <mingo@elte.hu>
hifive-unleashed-5.1
Ingo Molnar 2009-06-13 13:35:00 +02:00
parent f4db43a38f
commit 44175b6f39
2 changed files with 42 additions and 29 deletions
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67
tools/perf/builtin-stat.c
View File

@ -184,6 +184,40 @@ static void read_counter(int counter)
runtime_cycles = count[0];
}
static void nsec_printout(int counter, __u64 *count)
{
double msecs = (double)count[0] / 1000000;
fprintf(stderr, " %14.6f %-20s", msecs, event_name(counter));
if (attrs[counter].type == PERF_TYPE_SOFTWARE &&
attrs[counter].config == PERF_COUNT_SW_TASK_CLOCK) {
if (walltime_nsecs)
fprintf(stderr, " # %10.3f CPUs",
(double)count[0] / (double)walltime_nsecs);
}
}
static void abs_printout(int counter, __u64 *count)
{
fprintf(stderr, " %14Ld %-20s", count[0], event_name(counter));
if (runtime_cycles &&
attrs[counter].type == PERF_TYPE_HARDWARE &&
attrs[counter].config == PERF_COUNT_HW_INSTRUCTIONS) {
fprintf(stderr, " # %10.3f IPC",
(double)count[0] / (double)runtime_cycles);
return;
}
if (runtime_nsecs)
fprintf(stderr, " # %10.3f M/sec",
(double)count[0]/runtime_nsecs*1000.0);
}
/*
* Print out the results of a single counter:
*/
@ -201,35 +235,15 @@ static void print_counter(int counter)
return;
}
if (nsec_counter(counter)) {
double msecs = (double)count[0] / 1000000;
if (nsec_counter(counter))
nsec_printout(counter, count);
else
abs_printout(counter, count);
fprintf(stderr, " %14.6f %-20s",
msecs, event_name(counter));
if (attrs[counter].type == PERF_TYPE_SOFTWARE &&
attrs[counter].config == PERF_COUNT_SW_TASK_CLOCK) {
if (walltime_nsecs)
fprintf(stderr, " # %11.3f CPU utilization factor",
(double)count[0] / (double)walltime_nsecs);
}
} else {
fprintf(stderr, " %14Ld %-20s",
count[0], event_name(counter));
if (runtime_nsecs)
fprintf(stderr, " # %11.3f M/sec",
(double)count[0]/runtime_nsecs*1000.0);
if (runtime_cycles &&
attrs[counter].type == PERF_TYPE_HARDWARE &&
attrs[counter].config == PERF_COUNT_HW_INSTRUCTIONS) {
fprintf(stderr, " # %1.3f per cycle",
(double)count[0] / (double)runtime_cycles);
}
}
if (scaled)
fprintf(stderr, " (scaled from %.2f%%)",
(double) count[2] / count[1] * 100);
fprintf(stderr, "\n");
}
@ -290,8 +304,7 @@ static int do_perf_stat(int argc, const char **argv)
fprintf(stderr, "\n");
fprintf(stderr, " Wall-clock time elapsed: %12.6f msecs\n",
(double)(t1-t0)/1e6);
fprintf(stderr, " %14.9f seconds time elapsed.\n", (double)(t1-t0)/1e9);
fprintf(stderr, "\n");
return 0;

4
tools/perf/util/parse-events.c
View File

@ -63,8 +63,8 @@ static char *hw_event_names[] = {
};
static char *sw_event_names[] = {
"cpu-clock-ticks",
"task-clock-ticks",
"cpu-clock-msecs",
"task-clock-msecs",
"page-faults",
"context-switches",
"CPU-migrations",