Arnaldo Carvalho de Melo 4f4ba0e6af perf tests: No need to set attr.sample_freq in the perf time to TSC test ... We were asking for a 4kHz sample_freq, making the test fail needlessly when the system reduced /proc/sys/kernel/perf_event_max_sample_rate below that. In this test we only look at the PERF_SAMPLE_TIME fields in PERF_RECORD_ meta events, no need to set sample_freq. Thanks to Namhyung for suggesting that max_sample_rate could be the reason for the test failure, seeing the 'perf test -vv' output I sent. Before: # echo 1000 > /proc/sys/kernel/perf_event_max_sample_rate # perf test TSC 45: Test converting perf time to TSC : FAILED! After: # perf test TSC 45: Test converting perf time to TSC : Ok # cat /proc/sys/kernel/perf_event_max_sample_rate 1000 Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-lcob05qhawkuvsyuu9g1fld5@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>		2016-01-07 11:26:54 -03:00
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include	perf tests: Pass the subtest index to each test routine	2015-11-19 13:19:15 -03:00
tests	perf tests: No need to set attr.sample_freq in the perf time to TSC test	2016-01-07 11:26:54 -03:00
util	perf subcmd: Create subcmd library	2015-12-17 14:27:14 -03:00
Build	perf tests: Add arch tests	2015-10-05 16:55:38 -03:00
Makefile	perf tools: Introduce regs_query_register_offset() for x86	2015-09-15 09:48:33 -03:00