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authorJiri Olsa <[email protected]>2020-05-18 15:14:45 +0200
committerArnaldo Carvalho de Melo <[email protected]>2020-05-28 10:03:26 -0300
commitea9eb1f456a08c18feb485894185f7a4e31cc8a4 (patch)
treeceae78733469b0b472b7297d332fca773b465680 /tools/perf/scripts/python/Perf-Trace-Util/lib/Perf/Trace/Util.py
parentbeb6420300046a959082b32851fedaab2973be23 (diff)
perf stat: Fix duration_time value for higher intervals
Joakim reported wrong duration_time value for interval bigger than 4000 [1]. The problem is in the interval value we pass to update_stats function, which is typed as 'unsigned int' and overflows when we get over 2^32 (happens between intervals 4000 and 5000). Retyping the passed value to unsigned long long. [1] https://www.spinics.net/lists/linux-perf-users/msg11777.html Fixes: b90f1333ef08 ("perf stat: Update walltime_nsecs_stats in interval mode") Reported-by: Joakim Zhang <[email protected]> Signed-off-by: Jiri Olsa <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Andi Kleen <[email protected]> Cc: Michael Petlan <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: http://lore.kernel.org/lkml/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/Perf-Trace-Util/lib/Perf/Trace/Util.py')
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