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Auto-merge for these events was disabled when auto-merging of non-alias
events was disabled in commit 63ce844 (perf stat: Only auto-merge events
that are PMU aliases).
Non-merging of legacy events is preserved:
$ perf stat -ag -e cache-misses,cache-misses sleep 1
Performance counter stats for 'system wide':
86,323 cache-misses
86,323 cache-misses
1.002623307 seconds time elapsed
But prefix or glob matching auto-merges the events created:
$ perf stat -a -e l3cache/read-miss/ sleep 1
Performance counter stats for 'system wide':
328 l3cache/read-miss/
1.002627008 seconds time elapsed
$ perf stat -a -e l3cache_0_[01]/read-miss/ sleep 1
Performance counter stats for 'system wide':
172 l3cache/read-miss/
1.002627008 seconds time elapsed
As with events created with aliases, auto-merging can be suppressed with
the --no-merge option:
$ perf stat -a -e l3cache/read-miss/ --no-merge sleep 1
Performance counter stats for 'system wide':
67 l3cache/read-miss/
67 l3cache/read-miss/
63 l3cache/read-miss/
60 l3cache/read-miss/
1.002622192 seconds time elapsed
Signed-off-by: Agustin Vega-Frias <agustinv@codeaurora.org>
Acked-by: Andi Kleen <ak@linux.intel.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Timur Tabi <timur@codeaurora.org>
Cc: linux-arm-kernel@lists.infradead.org
Change-Id: I0a47eed54c05e1982ca964d743b37f50f60c508c
Link: http://lkml.kernel.org/r/1520345084-42646-4-git-send-email-agustinv@codeaurora.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
c199c11dce