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perf cpu_map: Add cpu_map user level event

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Adding the cpu_map event to pass/store cpu maps as data in
a pipe/perf.data.

We store maps in 2 formats:
  - list of cpus
  - mask of cpus

The format that takes less space is selected transparently in the
following patch.

The interface is made generic, so we could add the cpumap event data
into another event in the following patches.

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/1445784728-21732-8-git-send-email-jolsa@kernel.org
[ cpu_map_data_cpus -> cpu_map_entries, cpu_map_data_mask -> cpu_map_mask ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Jiri Olsa
2015-10-25 15:51:23 +01:00
committed by Arnaldo Carvalho de Melo
parent ec7fa596f5
commit 6640b6c227
4 changed files with 81 additions and 1 deletions
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3
tools/perf/util/tool.h
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@@ -56,7 +56,8 @@ struct perf_tool {
id_index,
auxtrace_info,
auxtrace_error,
thread_map;
thread_map,
cpu_map;
event_op3 auxtrace;
bool ordered_events;
bool ordering_requires_timestamps;