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From: "Jin, Yao" <yao.jin@linux.intel.com>
To: Jiri Olsa <jolsa@redhat.com>
Cc: acme@kernel.org, jolsa@kernel.org, peterz@infradead.org,
	mingo@redhat.com, alexander.shishkin@linux.intel.com,
	Linux-kernel@vger.kernel.org, ak@linux.intel.com,
	kan.liang@intel.com, yao.jin@intel.com
Subject: Re: [PATCH v4] perf diff: Report noisy for cycles diff
Date: Fri, 16 Aug 2019 09:24:51 +0800	[thread overview]
Message-ID: <99d40f03-f438-d78d-992d-02a91974c4d5@linux.intel.com> (raw)
In-Reply-To: <20190815132302.GI30356@krava>



On 8/15/2019 9:23 PM, Jiri Olsa wrote:
> 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
> 

The sparks can be used in more places for reporting the data noisy. :)

Thanks
Jin Yao

      reply	other threads:[~2019-08-16  1:24 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-08-13  7:30 Jin Yao
2019-08-15 13:22 ` Jiri Olsa
2019-08-16  1:22   ` Jin, Yao
2019-08-15 13:23 ` Jiri Olsa
2019-08-16  1:24   ` Jin, Yao [this message]

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