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authorJin Yao <yao.jin@linux.intel.com>2018-01-10 18:00:30 +0300
committerArnaldo Carvalho de Melo <acme@redhat.com>2018-01-17 16:23:36 +0300
commit7425664bbd3174814500c7ab8740cbb9bb25396c (patch)
tree3b2addd51662f2b4b6dea0dff27e74a84ae5549c /tools/perf/builtin-report.c
parent3002812e602d3f991a5b8cdc0499e63e13ff65c4 (diff)
downloadlinux-7425664bbd3174814500c7ab8740cbb9bb25396c.tar.xz
perf report: Add an indication of what time slices are used
Add a time slices indication to the perf report header. For example, # perf report --stdio --time 10% # Total Lost Samples: 0 # # Samples: 9K of event 'cycles:ppp' (time slices: 10%) # Event count (approx.): 8951288803 Signed-off-by: Jin Yao <yao.jin@linux.intel.com> Suggested--by: Arnaldo Carvalho de Melo <acme@redhat.com> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Reviewed-by: Jiri Olsa <jolsa@redhat.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Kan Liang <kan.liang@intel.com> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/1515596433-24653-6-git-send-email-yao.jin@linux.intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/builtin-report.c')
-rw-r--r--tools/perf/builtin-report.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index 7d4f0a5de326..4aaaa37262a8 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -404,6 +404,9 @@ static size_t hists__fprintf_nr_sample_events(struct hists *hists, struct report
if (evname != NULL)
ret += fprintf(fp, " of event '%s'", evname);
+ if (rep->time_str)
+ ret += fprintf(fp, " (time slices: %s)", rep->time_str);
+
if (symbol_conf.show_ref_callgraph &&
strstr(evname, "call-graph=no")) {
ret += fprintf(fp, ", show reference callgraph");