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Message-Id: <1687245156-61215-1-git-send-email-renyu.zj@linux.alibaba.com>
Date: Tue, 20 Jun 2023 15:12:32 +0800
From: Jing Zhang <renyu.zj@...ux.alibaba.com>
To: Will Deacon <will@...nel.org>, Mark Rutland <mark.rutland@....com>,
Jonathan Corbet <corbet@....net>,
John Garry <john.g.garry@...cle.com>,
Shuai Xue <xueshuai@...ux.alibaba.com>,
Ian Rogers <irogers@...gle.com>
Cc: Robin Murphy <robin.murphy@....com>,
James Clark <james.clark@....com>,
Mike Leach <mike.leach@...aro.org>,
Leo Yan <leo.yan@...aro.org>,
Ilkka Koskinen <ilkka@...amperecomputing.com>,
Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
Jiri Olsa <jolsa@...nel.org>,
Namhyung Kim <namhyung@...nel.org>,
Adrian Hunter <adrian.hunter@...el.com>,
linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
linux-perf-users@...r.kernel.org, linux-doc@...r.kernel.org,
Zhuo Song <zhuo.song@...ux.alibaba.com>,
Jing Zhang <renyu.zj@...ux.alibaba.com>
Subject: [PATCH v4 0/4] Add JSON metrics for Yitian710 DDR
Hi all,
I add an identifier sysfs file for the yitian710 SoC DDR to allow
userspace to identify the specific implementation of the device,
so that the perf tool can match the corresponding uncore events and
metrics through the identifier. Then added yitian710 SoC DDR
metrics and events alias.
Change since v3:
- Split the CMN and ali_drw patches. This patchset only contains
ali_drw PMU related patches. The CMN metric related patches will
be in another patchset.
- Link: https://lore.kernel.org/all/1685438374-33287-1-git-send-email-renyu.zj@linux.alibaba.com/
$perf list:
...
ali_drw:
chi_rxdat
[A packet at CHI RXDAT interface (write data). Unit: ali_drw]
chi_rxrsp
[A packet at CHI RXRSP interface. Unit: ali_drw]
chi_txdat
[A packet at CHI TXDAT interface (read data). Unit: ali_drw]
chi_txreq
[A packet at CHI TXREQ interface (request). Unit: ali_drw]
cycle
[The ddr cycle. Unit: ali_drw]
...
ali_drw:
ddr_read_bandwidth.all
[The ddr read bandwidth(MB/s). Unit: ali_drw ]
ddr_write_bandwidth.all
[The ddr write bandwidth(MB/s). Unit: ali_drw ]
...
$perf stat -M ddr_read_bandwidth.all ./test
Performance counter stats for 'system wide':
38,150 hif_rd # 2.4 MB/s ddr_read_bandwidth.all
1,000,957,941 ns duration_time
1.000957941 seconds time elapsed
Jing Zhang (4):
driver/perf: Add identifier sysfs file for Yitian 710 DDR
perf jevents: Add support for Yitian 710 DDR PMU aliasing
perf vendor events: Add JSON metrics for Yitian 710 DDR
docs: perf: Update metric usage for Alibaba's T-Head PMU driver
Documentation/admin-guide/perf/alibaba_pmu.rst | 5 +
drivers/perf/alibaba_uncore_drw_pmu.c | 27 ++
.../arm64/freescale/yitian710/sys/ali_drw.json | 373 +++++++++++++++++++++
.../arm64/freescale/yitian710/sys/metrics.json | 20 ++
tools/perf/pmu-events/jevents.py | 1 +
5 files changed, 426 insertions(+)
create mode 100644 tools/perf/pmu-events/arch/arm64/freescale/yitian710/sys/ali_drw.json
create mode 100644 tools/perf/pmu-events/arch/arm64/freescale/yitian710/sys/metrics.json
--
1.8.3.1
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