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| author | Namhyung Kim <namhyung@kernel.org> | 2020-03-25 21:45:31 +0900 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2020-04-03 09:37:55 -0300 |
| commit | d1277aa36bff4bfc1a187a469fc6a6a1d17cf59c (patch) | |
| tree | 682d45f57bf534a8eda1195c6b46cb8f7be0953c /tools/perf/util/env.h | |
| parent | ba78c1c5461c2fc2f57b777e971b3a9ec0df5666 (diff) | |
| download | lwn-d1277aa36bff4bfc1a187a469fc6a6a1d17cf59c.tar.gz lwn-d1277aa36bff4bfc1a187a469fc6a6a1d17cf59c.zip | |
perf cgroup: Maintain cgroup hierarchy
Each cgroup is kept in the perf_env's cgroup_tree sorted by the cgroup
id. Hist entries have cgroup id can compare it directly and later it
can be used to find a group name using this tree.
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/20200325124536.2800725-5-namhyung@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 | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/tools/perf/util/env.h b/tools/perf/util/env.h index 11d05ae3606a..7632075a8792 100644 --- a/tools/perf/util/env.h +++ b/tools/perf/util/env.h @@ -88,6 +88,12 @@ struct perf_env { u32 btfs_cnt; } bpf_progs; + /* same reason as above (for perf-top) */ + struct { + struct rw_semaphore lock; + struct rb_root tree; + } cgroups; + /* For fast cpu to numa node lookup via perf_env__numa_node */ int *numa_map; int nr_numa_map; |