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perf report: Print out the total number of events

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So that the statistical quality of the profile can be estimated at a glance.

Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: Marcelo Tosatti <mtosatti@redhat.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Ingo Molnar 2009-06-04 14:21:16 +02:00
parent bd74137ec9
commit 05ca061eb9
1 changed files with 2 additions and 0 deletions
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2
Documentation/perf_counter/builtin-report.c
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@ -721,6 +721,8 @@ static size_t output__fprintf(FILE *fp, uint64_t total_samples)
struct rb_node *nd; struct rb_node *nd;
size_t ret = 0; size_t ret = 0;
fprintf(fp, "#\n");
fprintf(fp, "# (%Ld profiler events)\n", (__u64)total_samples);
fprintf(fp, "#\n"); fprintf(fp, "#\n");
fprintf(fp, "# Overhead"); fprintf(fp, "# Overhead");