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Ian Rogers
f68c981be0
Per-thread mode requires either system-wide (-a), a pid (-p) or a tid (-t). The stat output tests were using system-wide mode but this is racy when threads are starting and exiting - something that happens a lot when running the tests in parallel (perf test -p). Avoid the race conditions by using pid mode with the pid of the parent process. Signed-off-by: Ian Rogers <[email protected]> Cc: Adrian Hunter <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Athira Rajeev <[email protected]> Cc: Christian Brauner <[email protected]> Cc: Disha Goel <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: James Clark <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: K Prateek Nayak <[email protected]> Cc: Kajol Jain <[email protected]> Cc: Kan Liang <[email protected]> Cc: Mark Rutland <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Song Liu <[email protected]> Cc: Tim Chen <[email protected]> Cc: Yicong Yang <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>