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perf stat: extend -D,--delay option with -1 value

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Extend -D,--delay option with -1 value to start monitoring with
events disabled to be enabled later by enable command provided
via control file descriptor.

Signed-off-by: Alexey Budankov <alexey.budankov@linux.intel.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/81ac633c-a844-5cfb-931c-820f6e6cbd12@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Alexey Budankov 2020-07-17 10:04:33 +03:00 • committed by Arnaldo Carvalho de Melo
parent 987b823813
commit 2162b9c6bd
4 changed files with 21 additions and 7 deletions
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3
tools/perf/util/evlist.h
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@ -378,4 +378,7 @@ int evlist__finalize_ctlfd(struct evlist *evlist);
bool evlist__ctlfd_initialized(struct evlist *evlist);
int evlist__ctlfd_process(struct evlist *evlist, enum evlist_ctl_cmd *cmd);
#define EVLIST_ENABLED_MSG "Events enabled\n"
#define EVLIST_DISABLED_MSG "Events disabled\n"
#endif /* __PERF_EVLIST_H */