Message-ID: <513DA076.80009@linux.vnet.ibm.com>
Date: Mon, 11 Mar 2013 17:14:30 +0800
From: Michael Wang <wangyun@linux.vnet.ibm.com>
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To: Ingo Molnar <mingo@kernel.org>
CC: Peter Zijlstra <a.p.zijlstra@chello.nl>,
        LKML <linux-kernel@vger.kernel.org>, Mike Galbraith <efault@gmx.de>,
        Namhyung Kim <namhyung@kernel.org>, Alex Shi <alex.shi@intel.com>,
        Paul Turner <pjt@google.com>,
        Andrew Morton <akpm@linux-foundation.org>,
        "Nikunj A. Dadhania" <nikunj@linux.vnet.ibm.com>,
        Ram Pai <linuxram@us.ibm.com>
Subject: Re: [PATCH] sched: wakeup buddy
References: <5136EB06.2050905@linux.vnet.ibm.com> <1362645372.2606.11.camel@laptop> <20130311082105.GB12742@gmail.com>
In-Reply-To: <20130311082105.GB12742@gmail.com>
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Hi, Ingo

On 03/11/2013 04:21 PM, Ingo Molnar wrote:
[snip]
> 
> I have actually written the prctl() approach before, for instrumentation 
> purposes, and it does wonders to system analysis.

The idea sounds great, we could get many new info to implement more
smart scheduler, that's amazing :)

> 
> Any objections?

Just one concern, may be I have misunderstand you, but will it cause
trouble if the prctl() was indiscriminately used by some applications,
will we get fake data?

Regards,
Michael Wang

> 
> Thanks,
> 
> 	Ingo
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