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perf tools: Add snapshot format file parsing

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The .snapshot file indicates that the provided event value is a snapshot
value and we have to bypass the delta computation logic.

Adding support to check up this file and set event flag accordingly.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Matt Fleming <matt.fleming@intel.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1416562275-12404-10-git-send-email-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Jiri Olsa
2014-11-21 10:31:13 +01:00
committed by Arnaldo Carvalho de Melo
parent 044330c184
commit 1d9e446b91
4 changed files with 40 additions and 11 deletions
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2
tools/perf/util/pmu.h
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@@ -30,6 +30,7 @@ struct perf_pmu_info {
const char *unit;
double scale;
bool per_pkg;
bool snapshot;
};
#define UNIT_MAX_LEN 31 /* max length for event unit name */
@@ -41,6 +42,7 @@ struct perf_pmu_alias {
char unit[UNIT_MAX_LEN+1];
double scale;
bool per_pkg;
bool snapshot;
};
struct perf_pmu *perf_pmu__find(const char *name);