Arnaldo Carvalho de Melo 2480232c61 perf test task_exit: No need for a cycles event to check if we get an PERF_RECORD_EXIT ... The intent of this test is to check we get a PERF_RECORD_EXIT as asked for by setting perf_event_attr.task=1. When the test was written we didn't had the "dummy" event so we went with the default event, "cycles". There were reports of this test failing sometimes, one of these reports was with a PREEMPT_RT_FULL, but I noticed it failing sometimes with an aarch64 Firefly board. In the kernel the call to perf_event_task_output(), that generates the PERF_RECORD_EXIT may fail when there is not enough memory in the ring buffer, if the ring buffer is paused, etc. So switch to using the "dummy" event to use the ring buffer just for what the test was designed for, avoiding uneeded PERF_RECORD_SAMPLEs. Acked-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Juri Lelli <juri.lelli@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Link: https://lore.kernel.org/lkml/ZLGXmMuNRpx1ubFm@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>		2023-07-17 10:27:44 -03:00
..
arch	tools headers UAPI: Sync files changed by new cachestat syscall with the kernel sources	2023-07-11 11:41:15 -03:00
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pmu-events	perf vendor events amd: Fix large metrics	2023-07-11 11:50:39 -03:00
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tests	perf test task_exit: No need for a cycles event to check if we get an PERF_RECORD_EXIT	2023-07-17 10:27:44 -03:00
trace	perf beauty: Update copy of linux/socket.h with the kernel sources	2023-07-14 09:59:56 -03:00
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util	perf parse-events: Avoid SEGV if PMU lookup fails for legacy cache terms	2023-07-12 16:03:24 -03:00
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Makefile.config	perf build: Fix library not found error when using CSLIBS	2023-07-11 11:46:35 -03:00
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