diff options
| author |   Arnaldo Carvalho de Melo <acme@redhat.com> | 2015-09-09 10:37:01 -0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2015-09-14 12:50:28 -0300 |
| commit | aa36ddd7afbb0a3db216c1391e28cd6d80ed1706 (patch) | |
| tree | c4ade785d39be7b6ee6f63e2ed71f7f478a8b873 /tools/perf/util/env.h | |
| parent | perf cpu_map: Use sysfs__read_int in get_{core,socket}_id() (diff) | |
| download | wireguard-linux-aa36ddd7afbb0a3db216c1391e28cd6d80ed1706.tar.xz wireguard-linux-aa36ddd7afbb0a3db216c1391e28cd6d80ed1706.zip | |
perf env: Introduce read_cpu_topology_map() method
Out of the code to write the cpu topology map in the perf.data file
header.
Now if one needs the CPU topology map for the running machine, one needs
to call perf_env__read_cpu_topology_map(perf_env) and the info will be
stored in perf_env.cpu.
For now we're using a global perf_env variable, that will have its
contents freed after we run a builtin.
v2: Check perf_env__read_cpu_topology_map() return in
write_cpu_topology() (Kan Liang)
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Borislav Petkov <bp@suse.de>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Kan Liang <kan.liang@intel.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/r/1441828225-667-5-git-send-email-acme@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/env.h')
| -rw-r--r-- | tools/perf/util/env.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/tools/perf/util/env.h b/tools/perf/util/env.h index d0d1a9681531..0132b9557c02 100644 --- a/tools/perf/util/env.h +++ b/tools/perf/util/env.h @@ -39,4 +39,6 @@ void perf_env__exit(struct perf_env *env); int perf_env__set_cmdline(struct perf_env *env, int argc, const char *argv[]); +int perf_env__read_cpu_topology_map(struct perf_env *env); + #endif /* __PERF_ENV_H */ |