From: John Garry <john.g.garry@oracle.com>
To: Jing Zhang <renyu.zj@linux.alibaba.com>, Ian Rogers <irogers@google.com>
Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>,
Will Deacon <will@kernel.org>, James Clark <james.clark@arm.com>,
Mike Leach <mike.leach@linaro.org>, Leo Yan <leo.yan@linaro.org>,
linux-arm-kernel@lists.infradead.org,
linux-perf-users@vger.kernel.org, linux-kernel@vger.kernel.org,
Peter Zijlstra <peterz@infradead.org>,
Ingo Molnar <mingo@redhat.com>,
Arnaldo Carvalho de Melo <acme@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Alexander Shishkin <alexander.shishkin@linux.intel.com>,
Jiri Olsa <jolsa@kernel.org>, Namhyung Kim <namhyung@kernel.org>,
Andrew Kilroy <andrew.kilroy@arm.com>,
Shuai Xue <xueshuai@linux.alibaba.com>,
Zhuo Song <zhuo.song@linux.alibaba.com>
Subject: Re: [PATCH v8 1/9] perf pmu: Add #slots literal support for arm64
Date: Tue, 17 Jan 2023 08:45:05 +0000 [thread overview]
Message-ID: <06d33eb8-d2a9-4792-fa83-c64059ab7326@oracle.com> (raw)
In-Reply-To: <1673940573-90503-2-git-send-email-renyu.zj@linux.alibaba.com>
On 17/01/2023 07:29, Jing Zhang wrote:
> The slots in each architecture may be different, so add #slots literal
> to obtain the slots of different architectures, and the #slots can be
> applied in the metric. Currently, The #slots just support for arm64,
> and other architectures will return NAN.
>
> On arm64, the value of slots is from the register PMMIR_EL1.SLOT, which
> I can read in /sys/bus/event_source/device/armv8_pmuv3_*/caps/slots.
> PMMIR_EL1.SLOT might read as zero if the PMU version is lower than
> ID_AA64DFR0_EL1_PMUVer_V3P4 or the STALL_SLOT event is not implemented.
>
> Signed-off-by: Jing Zhang<renyu.zj@linux.alibaba.com>
Reviewed-by: John Garry <john.g.garry@oracle.com>
next prev parent reply other threads:[~2023-01-17 8:46 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-01-17 7:29 [PATCH v8 0/9] Add metrics for neoverse-n2-v2 Jing Zhang
2023-01-17 7:29 ` [PATCH v8 1/9] perf pmu: Add #slots literal support for arm64 Jing Zhang
2023-01-17 8:45 ` John Garry [this message]
2023-01-19 3:49 ` Jing Zhang
2023-01-19 3:53 ` Jing Zhang
2023-01-24 17:47 ` Ian Rogers
2023-01-17 7:29 ` [PATCH v8 2/9] perf jevent: Add general metrics support Jing Zhang
2023-01-17 7:29 ` [PATCH v8 3/9] perf vendor events arm64: Add common topdown L1 metrics Jing Zhang
2023-01-17 7:29 ` [PATCH v8 4/9] perf vendor events arm64: Add topdown L1 metrics for neoverse-n2-v2 Jing Zhang
2023-01-17 7:29 ` [PATCH v8 5/9] perf vendor events arm64: Add TLB " Jing Zhang
2023-01-17 7:29 ` [PATCH v8 6/9] perf vendor events arm64: Add cache " Jing Zhang
2023-01-17 7:29 ` [PATCH v8 7/9] perf vendor events arm64: Add branch " Jing Zhang
2023-01-17 7:29 ` [PATCH v8 8/9] perf vendor events arm64: Add PE utilization " Jing Zhang
2023-01-17 7:29 ` [PATCH v8 9/9] perf vendor events arm64: Add instruction mix " Jing Zhang
2023-01-19 12:41 ` [PATCH v8 0/9] Add " Arnaldo Carvalho de Melo
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