Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18;
IronPort-SDR: RhdEdyIZlXyuYQWLSfP62ScafB1uoVSpFMFmpphdkSU29FqHOOqutpUiihWlKRrK3Ihs7KWeya
 UMQwQ1VnSg7wJDVTw632x5xIoetFZIXB4o7qFgoVRiW2zBwz/zwR6k76niIJpSAxM/Kf69UewQ
 IFuCiuCS+VXVaD5lvA4EA5oN4k+SHjBAotvFDC7lOjmY7IGBJ5ZchBU8TFVLeAfZ0Y6IGprtD2
 IcPmCiy6JhlS2f2UDDTeIsr0yO1zeVnTcSRA76yZ5+7sw4NnsBBdeEzzaJBfMGcgIl3UJcpeC3
 hVHy2oZn/T2WR/iOCohHymyN
From:   Shunsuke Nakamura <nakamura.shun@fujitsu.com>
To:     peterz@infradead.org, mingo@redhat.com, acme@kernel.org,
        mark.rutland@arm.com, alexander.shishkin@linux.intel.com,
        jolsa@redhat.com, namhyung@kernel.org
Cc:     linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org
Subject: [PATCH 0/3] libperf: Add support for scaling counters obtained from the read() system call during multiplexing
Date:   Fri, 20 Aug 2021 18:39:05 +0900
Message-Id: <20210820093908.734503-1-nakamura.shun@fujitsu.com>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Precedence: bulk

This patch series supports counter scaling when perf_evsel__read() obtains a counter
using the read() system call during multiplexing.

The first patch adds scaling of counters obtained from the read() system call
during multiplexing.

The second patch fixes verbose printing.

The third patch adds a test for the first patch.
This patch is based on Vince's rdpmc_multiplexing.c [1]


[1] https://github.com/deater/perf_event_tests/blob/master/tests/rdpmc/rdpmc_multiplexing.c


Shunsuke Nakamura (3):
  libperf: Add processing to scale the counters obtained during the read
    () system call when multiplexing
  libperf tests: Fix verbose printing
  libperf tests: Add test_stat_multiplexing test

 tools/lib/perf/evsel.c                  |   4 +
 tools/lib/perf/include/internal/tests.h |   2 +
 tools/lib/perf/tests/test-evlist.c      | 138 ++++++++++++++++++++++++
 3 files changed, 144 insertions(+)

-- 
2.25.1