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| author | Alexey Budankov <alexey.budankov@linux.intel.com> | 2019-01-22 20:50:57 +0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2019-02-06 16:00:39 +0300 |
| commit | f13de6609a9a25ce4d6dc37c4427f5bc90072fb0 (patch) | |
| tree | ee9ea1ac4234ad029adc23589715293d4656b89a /tools/perf/util/cpumap.h | |
| parent | de20e3200c962213cdc67c0933f0ddaeb9285e62 (diff) | |
| download | linux-f13de6609a9a25ce4d6dc37c4427f5bc90072fb0.tar.xz | |
perf record: Apply affinity masks when reading mmap buffers
Build node cpu masks for mmap data buffers. Apply node cpu masks to tool
thread every time it references data buffers cross node or cross cpu.
Signed-off-by: Alexey Budankov <alexey.budankov@linux.intel.com>
Reviewed-by: Jiri Olsa <jolsa@redhat.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/b25e4ebc-078d-2c7b-216c-f0bed108d073@linux.intel.com
[ Use cpu-set-sched.h to get the CPU_{EQUAL,OR}() fallbacks for older systems ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/cpumap.h')
| -rw-r--r-- | tools/perf/util/cpumap.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/tools/perf/util/cpumap.h b/tools/perf/util/cpumap.h index ed8999d1a640..f00ce624b9f7 100644 --- a/tools/perf/util/cpumap.h +++ b/tools/perf/util/cpumap.h @@ -29,6 +29,7 @@ int cpu_map__get_core_id(int cpu); int cpu_map__get_core(struct cpu_map *map, int idx, void *data); int cpu_map__build_socket_map(struct cpu_map *cpus, struct cpu_map **sockp); int cpu_map__build_core_map(struct cpu_map *cpus, struct cpu_map **corep); +const struct cpu_map *cpu_map__online(void); /* thread unsafe */ struct cpu_map *cpu_map__get(struct cpu_map *map); void cpu_map__put(struct cpu_map *map); |