| From: |
| Ian Rogers <irogers-AT-google.com> |
| To: |
| Peter Zijlstra <peterz-AT-infradead.org>, Ingo Molnar <mingo-AT-redhat.com>, Arnaldo Carvalho de Melo <acme-AT-kernel.org>, Namhyung Kim <namhyung-AT-kernel.org>, Mark Rutland <mark.rutland-AT-arm.com>, Alexander Shishkin <alexander.shishkin-AT-linux.intel.com>, Jiri Olsa <jolsa-AT-kernel.org>, Ian Rogers <irogers-AT-google.com>, Adrian Hunter <adrian.hunter-AT-intel.com>, Kan Liang <kan.liang-AT-linux.intel.com>, Bjorn Helgaas <bhelgaas-AT-google.com>, Jonathan Corbet <corbet-AT-lwn.net>, James Clark <james.clark-AT-arm.com>, Ravi Bangoria <ravi.bangoria-AT-amd.com>, Dominique Martinet <asmadeus-AT-codewreck.org>, linux-kernel-AT-vger.kernel.org, linux-perf-users-AT-vger.kernel.org, Dhananjay Ugwekar <Dhananjay.Ugwekar-AT-amd.com>, ananth.narayan-AT-amd.com, gautham.shenoy-AT-amd.com, kprateek.nayak-AT-amd.com, sandipan.das-AT-amd.com |
| Subject: |
| [PATCH v2 0/6] Add support for sysfs event.cpus and cpu event term |
| Date: |
| Wed, 17 Jul 2024 17:30:19 -0700 |
| Message-ID: |
| <20240718003025.1486232-1-irogers@google.com> |
| Archive-link: |
| Article |
The need for a sysfs event.cpus file is discussed here:
https://lore.kernel.org/lkml/CAP-5=fXXuWchzUK0n5KTH8kamr=...
following Dhananjay Ugwekar's work on the RAPL /sys/devices/power PMU.
These changes add support for the event.cpus file in sysfs and also a
cpu event term allowing events to have differing CPUs. This was added
in order to test the parsing and map propagation for the sysfs case.
v2: Add support for multiple cpu terms on an event that are
merged. For example, an event of "l1d-misses/cpu=4,cpu=5/" will
now be opened on both CPU 4 and 5 rather than just CPU 4.
Ian Rogers (6):
perf pmu: Merge boolean sysfs event option parsing
perf parse-events: Pass cpu_list as a perf_cpu_map in __add_event
perf pmu: Add support for event.cpus files in sysfs
libperf cpumap: Add ability to create CPU from a single CPU number
perf parse-events: Set is_pmu_core for legacy hardware events
perf parse-events: Add "cpu" term to set the CPU an event is recorded
on
.../sysfs-bus-event_source-devices-events | 14 ++
tools/lib/perf/cpumap.c | 10 ++
tools/lib/perf/include/perf/cpumap.h | 2 +
tools/perf/Documentation/perf-list.txt | 9 +
tools/perf/util/evsel_config.h | 1 +
tools/perf/util/parse-events.c | 162 ++++++++++++------
tools/perf/util/parse-events.h | 3 +-
tools/perf/util/parse-events.l | 1 +
tools/perf/util/pmu.c | 92 +++++++---
tools/perf/util/pmu.h | 1 +
10 files changed, 221 insertions(+), 74 deletions(-)
--
2.45.2.1089.g2a221341d9-goog
