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Date: Wed, 4 May 2011 15:33:32 +0800
Message-ID: <BANLkTimCK9kxrepvvCjXDNEhWaX2sxC5zA@mail.gmail.com>
Subject: Re: [RFC][PATCH] mm: cut down __GFP_NORETRY page allocation failures
From: Dave Young <hidave.darkstar@gmail.com>
To: Wu Fengguang <fengguang.wu@intel.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
        Minchan Kim <minchan.kim@gmail.com>, linux-mm <linux-mm@kvack.org>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        Mel Gorman <mel@linux.vnet.ibm.com>,
        KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>,
        KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
        Christoph Lameter <cl@linux.com>, Dave Chinner <david@fromorbit.com>,
        David Rientjes <rientjes@google.com>
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On Wed, May 4, 2011 at 12:00 PM, Wu Fengguang <fengguang.wu@intel.com> wrote:
>> > CAL:     220449     220246     220372     220558     220251     219740     220043     219968   Function call interrupts
>> >
>> > LOC:     536274     532529     531734     536801     536510     533676     534853     532038   Local timer interrupts
>> > RES:       3032       2128       1792       1765       2184       1703       1754       1865   Rescheduling interrupts
>> > TLB:        189         15         13         17         64        294         97         63   TLB shootdowns
>>
>> Could you tell how to get above info?
>
> It's /proc/interrupts.
>
> I have two lines at the end of the attached script to collect the
> information, and another script to call getdelays on every 10s. The
> posted reclaim delays are the last successful getdelays output.
>
> I've automated the test process, so that with one single command line
> a new kernel will be built and the test box will rerun tests on the
> new kernel :)

Thank you for that effort!

>
> Thanks,
> Fengguang
>


-- 
Regards
dave
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