Re: [PATCH v3 0/4] perf: Support a new 'percore' event qualifier

Jiri Olsa
2019-03-19T10:20:31Z

On Tue, Mar 19, 2019 at 04:56:52PM +0800, Jin Yao wrote:
> The 'percore' event qualifier which sums up the event counts for both
> hardware threads in a core. For example,
>
> perf stat -e cpu/event=0,umask=0x3,percore=1/,cpu/event=0,umask=0x3/
>
> In this example, we count the event 'ref-cycles' per-core and per-CPU in
> one perf stat command-line.
>
> We can already support per-core counting with --per-core, but it's
> often useful to do this together with other metrics that are collected
> per CPU (per hardware thread). So this patch series supports this
> per-core counting on a event level.
>
> v3:
> ---
> Simplify the patch: "perf: Add a 'percore' event qualifier"
> Other patches don't have changes.

Acked-by: Jiri Olsa <jolsa@kernel.org>

thanks,
jirka

>
> v2:
> ---
> 1. Change 'coresum' to 'percore'.
> 2. Move the aggregate counts printing to a seperate patch.
>
> Jin Yao (4):
> perf: Add a 'percore' event qualifier
> perf stat: Factor out aggregate counts printing
> perf stat: Support 'percore' event qualifier
> perf test: Add a simple test for term 'percore'
>
> tools/perf/Documentation/perf-stat.txt | 4 ++
> tools/perf/builtin-stat.c | 21 +++++++
> tools/perf/tests/parse-events.c | 10 ++-
> tools/perf/util/evsel.c | 2 +
> tools/perf/util/evsel.h | 3 +
> tools/perf/util/parse-events.c | 27 +++++++++
> tools/perf/util/parse-events.h | 1 +
> tools/perf/util/parse-events.l | 1 +
> tools/perf/util/stat-display.c | 108 ++++++++++++++++++++++++---------
> tools/perf/util/stat.c | 8 ++-
> 10 files changed, 151 insertions(+), 34 deletions(-)
>
> --
> 2.7.4
>