diff options
| author | Like Xu <likexu@tencent.com> | 2021-11-09 17:01:47 +0800 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2021-11-13 18:11:50 -0300 |
| commit | 438f1a9f54a99368957c150496b582a02cc6c305 (patch) | |
| tree | d6ee8f5bdc07bd2b183417248c1fd41e1caf662b /tools/perf/design.txt | |
| parent | 09e9afac8cea99429b103fc21836dae693a56b17 (diff) | |
| download | lwn-438f1a9f54a99368957c150496b582a02cc6c305.tar.gz lwn-438f1a9f54a99368957c150496b582a02cc6c305.zip | |
perf design.txt: Synchronize the definition of enum perf_hw_id with code
We're not surprised that there are tons of Linux users who only read the
documentation to learn about the kernel.
Let's update the perf part for common hardware events since three new
*generic* hardware events were added.
Signed-off-by: Like Xu <likexu@tencent.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/20211109090147.56978-1-likexu@tencent.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/design.txt')
| -rw-r--r-- | tools/perf/design.txt | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/tools/perf/design.txt b/tools/perf/design.txt index a42fab308ff6..aa8cfeabb743 100644 --- a/tools/perf/design.txt +++ b/tools/perf/design.txt @@ -106,6 +106,9 @@ enum perf_hw_id { PERF_COUNT_HW_BRANCH_INSTRUCTIONS = 4, PERF_COUNT_HW_BRANCH_MISSES = 5, PERF_COUNT_HW_BUS_CYCLES = 6, + PERF_COUNT_HW_STALLED_CYCLES_FRONTEND = 7, + PERF_COUNT_HW_STALLED_CYCLES_BACKEND = 8, + PERF_COUNT_HW_REF_CPU_CYCLES = 9, }; These are standardized types of events that work relatively uniformly |