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perf mem record: Check for memory events support

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Check if current kernel support available memory events and display the
status within -e  list option:

  $ perf mem record -e list
  ldlat-loads  : available
  ldlat-stores : available

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1456303616-26926-2-git-send-email-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Jiri Olsa
2016-02-24 09:46:42 +01:00
committed by Arnaldo Carvalho de Melo
parent c2b8d8c55c
commit 54fbad54eb
3 changed files with 51 additions and 7 deletions
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3
tools/perf/util/mem-events.h
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@@ -5,8 +5,10 @@
struct perf_mem_event {
bool record;
bool supported;
const char *tag;
const char *name;
const char *sysfs_name;
};
enum {
@@ -18,5 +20,6 @@ enum {
extern struct perf_mem_event perf_mem_events[PERF_MEM_EVENTS__MAX];
int perf_mem_events__parse(const char *str);
int perf_mem_events__init(void);
#endif /* __PERF_MEM_EVENTS_H */