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| author | Alexey Budankov <alexey.budankov@linux.intel.com> | 2019-01-22 20:52:03 +0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2019-02-11 18:32:21 +0300 |
| commit | f4fe11b7bf7ff6a1ccf15d7a9484f0ff7d1e92ae (patch) | |
| tree | b38e446f5786c9a6e27e74f3a873d9d5f19f6a75 /tools/perf/Documentation | |
| parent | af63147c1edacfb75a28885a7cd7e6f44e626164 (diff) | |
| download | linux-f4fe11b7bf7ff6a1ccf15d7a9484f0ff7d1e92ae.tar.xz | |
perf record: Implement --affinity=node|cpu option
Implement --affinity=node|cpu option for the record mode defaulting
to system affinity mask bouncing.
Signed-off-by: Alexey Budankov <alexey.budankov@linux.intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/083f5422-ece9-10dd-8305-bf59c860f10f@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/Documentation')
| -rw-r--r-- | tools/perf/Documentation/perf-record.txt | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/tools/perf/Documentation/perf-record.txt b/tools/perf/Documentation/perf-record.txt index 02b4aa2621e7..8f0c2be34848 100644 --- a/tools/perf/Documentation/perf-record.txt +++ b/tools/perf/Documentation/perf-record.txt @@ -454,6 +454,11 @@ Use <n> control blocks in asynchronous (Posix AIO) trace writing mode (default: Asynchronous mode is supported only when linking Perf tool with libc library providing implementation for Posix AIO API. +--affinity=mode:: +Set affinity mask of trace reading thread according to the policy defined by 'mode' value: + node - thread affinity mask is set to NUMA node cpu mask of the processed mmap buffer + cpu - thread affinity mask is set to cpu of the processed mmap buffer + --all-kernel:: Configure all used events to run in kernel space. |