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perf tools: Add stat config user level event

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Adding the stat config event to pass/store stat config data, so report
tools (report/script) know how to interpret stat data.

The config data is stored in a 'tag|value' way to allow for easy
extension and backwards compatibility.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Tested-by: Kan Liang <kan.liang@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1445784728-21732-12-git-send-email-jolsa@kernel.org
[ stat_config_term_event -> stat_config_event_entry ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Jiri Olsa 2015-10-25 15:51:27 +01:00 • committed by Arnaldo Carvalho de Melo
parent eb12a1afdc
commit 374fb9e362
4 changed files with 47 additions and 1 deletions
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20
tools/perf/util/event.h
View file

@ -228,6 +228,7 @@ enum perf_user_event_type { /* above any possible kernel type */
PERF_RECORD_AUXTRACE_ERROR = 72,
PERF_RECORD_THREAD_MAP = 73,
PERF_RECORD_CPU_MAP = 74,
PERF_RECORD_STAT_CONFIG = 75,
PERF_RECORD_HEADER_MAX
};
@ -395,6 +396,24 @@ struct thread_map_event {
struct thread_map_event_entry entries[];
};
enum {
PERF_STAT_CONFIG_TERM__AGGR_MODE = 0,
PERF_STAT_CONFIG_TERM__INTERVAL = 1,
PERF_STAT_CONFIG_TERM__SCALE = 2,
PERF_STAT_CONFIG_TERM__MAX = 3,
};
struct stat_config_event_entry {
u64 tag;
u64 val;
};
struct stat_config_event {
struct perf_event_header header;
u64 nr;
struct stat_config_event_entry data[];
};
union perf_event {
struct perf_event_header header;
struct mmap_event mmap;
@ -419,6 +438,7 @@ union perf_event {
struct context_switch_event context_switch;
struct thread_map_event thread_map;
struct cpu_map_event cpu_map;
struct stat_config_event stat_config;
};
void perf_event__print_totals(void);