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Record off-cpu data with perf bench sched messaging workload and count the number of offcpu-time events. Also update the test script not to run next tests if failed already and revise the error messages. $ sudo ./perf test offcpu -v 88: perf record offcpu profiling tests : --- start --- test child forked, pid 344780 Checking off-cpu privilege Basic off-cpu test Basic off-cpu test [Success] Child task off-cpu test Child task off-cpu test [Success] test child finished with 0 ---- end ---- perf record offcpu profiling tests: Ok Signed-off-by: Namhyung Kim <[email protected]> Cc: Blake Jones <[email protected]> Cc: Hao Luo <[email protected]> Cc: Ian Rogers <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Milian Wolff <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Song Liu <[email protected]> Cc: [email protected] Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>