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| author | Adrian Hunter <adrian.hunter@intel.com> | 2019-06-04 15:00:12 +0200 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2019-06-10 21:20:12 +0200 |
| commit | b16bfeb3db1b50273e95f539953c337be759500d (patch) | |
| tree | 50377f501e7ee9cacd12fdeea9ba7844c4d52137 /tools/perf | |
| parent | perf time-utils: Factor out set_percent_time() (diff) | |
| download | linux-b16bfeb3db1b50273e95f539953c337be759500d.tar.xz linux-b16bfeb3db1b50273e95f539953c337be759500d.zip | |
perf time-utils: Prevent percentage time range overlap
Prevent percentage time range overlap. This is only a 1 nanosecond
change but makes the results more logical e.g. a sample cannot be in
both the first 10% and the second 20%.
Note, there is a later patch that adds a test for time-utils.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jin Yao <yao.jin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/r/20190604130017.31207-15-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf')
| -rw-r--r-- | tools/perf/util/time-utils.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/tools/perf/util/time-utils.c b/tools/perf/util/time-utils.c index 69441faab3d0..3e87c21c293c 100644 --- a/tools/perf/util/time-utils.c +++ b/tools/perf/util/time-utils.c @@ -148,6 +148,9 @@ static int set_percent_time(struct perf_time_interval *ptime, double start_pcnt, ptime->start = start + round(start_pcnt * total); ptime->end = start + round(end_pcnt * total); + if (ptime->end > ptime->start && ptime->end != end) + ptime->end -= 1; + return 0; } |