linux-kernel - Re: [RFC] Scheduler recorder and playback

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Message-Id: <06486CFC-244E-4D52-8A25-719AA0D3E742@antoniou-consulting.com>
Date:	Thu, 8 Mar 2012 18:21:25 +0200
From:	Pantelis Antoniou <panto@...oniou-consulting.com>
To:	Frederic Weisbecker <fweisbec@...il.com>
Cc:	linux-kernel@...r.kernel.org, linaro-kernel@...ts.linaro.org,
	linaro-dev@...ts.linaro.org, Steven Goss <steve.goss@...com>,
	Kevin Hilman <khilman@...com>, Matt Porter <mporter@...com>,
	Kumar Gala <galak@...com>,
	Robin Randhawa <robin.randhawa@....com>,
	Amit Kucheria <amit.kucheria@...aro.org>,
	charles.garcia-tobin@....com,
	Morten Rasmussen <morten.rasmussen@....com>,
	chris.redpath@....com, Paul Turner <pjt@...gle.com>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	dmitry.antipov@...aro.org, Stephane Sintes <s-sintes@...com>,
	Ingo Molnar <mingo@...e.hu>
Subject: Re: [RFC] Scheduler recorder and playback

Hi Frederic,

On Mar 8, 2012, at 5:45 PM, Frederic Weisbecker wrote:

> On Thu, Mar 08, 2012 at 03:20:53PM +0200, Pantelis Antoniou wrote:
>> Hi there,
>> 

[snip]

> 
> Hi,
> 
> May be you could have a look at the perf sched tool.
> It has a replay feature. I think it perform well basic replay but it can
> certainly be enhanced.
> 

Yes I am aware of perf-sched, and I know that it can do basic record and
replay of the wakeup, switch & fork events.

It looks like it can be the starting point of what we're trying to do, but
I doubt this will cover all the cases.

That why I'm trying to have a discussion about this problem; to find out
what is there, what is missing, and what is there to fix or develop anew.

So what do you think?

Regards

-- Pantelis

>> 
>> 
>> 
>> --
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