From: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
To: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>,
Mathieu Poirier <mathieu.poirier@linaro.org>,
Sergey Senozhatsky <sergey.senozhatsky@gmail.com>,
Peter Zijlstra <peterz@infradead.org>,
John Garry <john.garry@huawei.com>,
linux-kernel@vger.kernel.org,
Suleiman Souhlal <suleiman@google.com>,
Leo Yan <leo.yan@linaro.org>, Namhyung Kim <namhyung@kernel.org>,
Will Deacon <will@kernel.org>,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCHv4] perf kvm: add kvm-stat for arm64
Date: Tue, 29 Sep 2020 12:34:50 +0900 [thread overview]
Message-ID: <20200929033450.GB529@jagdpanzerIV.localdomain> (raw)
In-Reply-To: <20200917100225.208794-1-sergey.senozhatsky@gmail.com>
On (20/09/17 19:02), Sergey Senozhatsky wrote:
> Add support for perf kvm stat on arm64 platform.
>
> Example:
> # perf kvm stat report
>
> Analyze events for all VMs, all VCPUs:
>
> VM-EXIT Samples Samples% Time% Min Time Max Time Avg time
>
> DABT_LOW 661867 98.91% 40.45% 2.19us 3364.65us 6.24us ( +- 0.34% )
> IRQ 4598 0.69% 57.44% 2.89us 3397.59us 1276.27us ( +- 1.61% )
> WFx 1475 0.22% 1.71% 2.22us 3388.63us 118.31us ( +- 8.69% )
> IABT_LOW 1018 0.15% 0.38% 2.22us 2742.07us 38.29us ( +- 12.55% )
> SYS64 180 0.03% 0.01% 2.07us 112.91us 6.57us ( +- 14.95% )
> HVC64 17 0.00% 0.01% 2.19us 322.35us 42.95us ( +- 58.98% )
>
> Total Samples:669155, Total events handled time:10216387.86us.
>
> Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
> Reviewed-by: Leo Yan <leo.yan@linaro.org>
> Tested-by: Leo Yan <leo.yan@linaro.org>
Arnaldo, any opinion on this?
-ss
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next prev parent reply other threads:[~2020-09-29 3:36 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-17 10:02 [PATCHv4] perf kvm: add kvm-stat for arm64 Sergey Senozhatsky
2020-09-29 3:34 ` Sergey Senozhatsky [this message]
2020-10-13 14:37 ` Arnaldo Carvalho de Melo
2020-10-13 15:29 ` Leo Yan
2020-10-27 5:56 ` Sergey Senozhatsky
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