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| author | Jiri Olsa <jolsa@kernel.org> | 2019-08-29 13:31:48 +0200 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2019-11-06 15:49:39 -0300 |
| commit | 389799a7a1e86c55f38897e679762efadcc9dedd (patch) | |
| tree | 28910087dcd21c5b1c7eb856517b96447fbd617f /tools/perf/util/env.h | |
| parent | 61ec07f5917ec6d58d415d46e54dea452237b26e (diff) | |
| download | linux-389799a7a1e86c55f38897e679762efadcc9dedd.tar.gz linux-389799a7a1e86c55f38897e679762efadcc9dedd.tar.bz2 linux-389799a7a1e86c55f38897e679762efadcc9dedd.zip | |
perf env: Add perf_env__numa_node()
To speed up cpu to node lookup, add perf_env__numa_node(), that creates
cpu array on the first lookup, that holds numa nodes for each stored
cpu.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexey Budankov <alexey.budankov@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Joe Mario <jmario@redhat.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Michael Petlan <mpetlan@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/20190904073415.723-3-jolsa@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 a3059dc1abe5..11d05ae3606a 100644 --- a/tools/perf/util/env.h +++ b/tools/perf/util/env.h @@ -87,6 +87,10 @@ struct perf_env { struct rb_root btfs; u32 btfs_cnt; } bpf_progs; + + /* For fast cpu to numa node lookup via perf_env__numa_node */ + int *numa_map; + int nr_numa_map; }; enum perf_compress_type { @@ -120,4 +124,6 @@ struct bpf_prog_info_node *perf_env__find_bpf_prog_info(struct perf_env *env, __u32 prog_id); void perf_env__insert_btf(struct perf_env *env, struct btf_node *btf_node); struct btf_node *perf_env__find_btf(struct perf_env *env, __u32 btf_id); + +int perf_env__numa_node(struct perf_env *env, int cpu); #endif /* __PERF_ENV_H */ |