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This is a long standing bug with the l1-dcache-stores generic event on AMD machines. My perf_event testsuite has been complaining about this for years and I'm finally getting around to trying to get it fixed. The data_cache_refills:system event does not make sense for l1-dcache-stores. Maybe this was a typo and it was meant to be for l1-dcache-store-misses? In any case, the values returned are nowhere near correct for l1-dcache-stores and in fact the umask values for the event have completely changed with fam15h so it makes even less sense than ever. So just remove it. Signed-off-by: Vince Weaver <vincent.weaver@maine.edu> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/alpine.DEB.2.20.1512091134350.24311@vincent-weaver-1.umelst.maine.edu Signed-off-by: Ingo Molnar <mingo@kernel.org> |
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