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| author |   Kan Liang <kan.liang@intel.com> | 2018-01-18 13:26:32 -0800 |
|---|---|---|
| committer |   Arnaldo Carvalho de Melo <acme@redhat.com> | 2018-02-15 09:57:06 -0300 |
| commit | 8cc42de736b617827a4e7664fb8d7a325bc125bc (patch) | |
| tree | ec87fc8ed11507410243aea4c604e2efa32440bf /tools/perf/util/util.c | |
| parent | perf top: Switch default mode to overwrite mode (diff) | |
| download | linux-dev-8cc42de736b617827a4e7664fb8d7a325bc125bc.tar.xz linux-dev-8cc42de736b617827a4e7664fb8d7a325bc125bc.zip | |
perf top: Check the latency of perf_top__mmap_read()
The latency of perf_top__mmap_read() should be lower than refresh time.
If not, give some hints to reduce the latency.
Signed-off-by: Kan Liang <kan.liang@intel.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jin Yao <yao.jin@linux.intel.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/r/1516310792-208685-18-git-send-email-kan.liang@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to '')
0 files changed, 0 insertions, 0 deletions