linux-kernel - Re: [PATCH v4] perf diff: Report noisy for cycles diff

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Message-ID: <20190815132302.GI30356@krava>
Date:   Thu, 15 Aug 2019 15:23:02 +0200
From:   Jiri Olsa <jolsa@...hat.com>
To:     Jin Yao <yao.jin@...ux.intel.com>
Cc:     acme@...nel.org, jolsa@...nel.org, peterz@...radead.org,
        mingo@...hat.com, alexander.shishkin@...ux.intel.com,
        Linux-kernel@...r.kernel.org, ak@...ux.intel.com,
        kan.liang@...el.com, yao.jin@...el.com
Subject: Re: [PATCH v4] perf diff: Report noisy for cycles diff

On Tue, Aug 13, 2019 at 03:30:37PM +0800, Jin Yao wrote:
> This patch prints the stddev and hist for the cycles diff of
> program block. It can help us to understand if the cycles
> is noisy or not.
> 
> This patch is inspired by Andi Kleen's patch
> https://lwn.net/Articles/600471/

now that we have sparks support, we could respin it ;-)

jirka