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From: Nick Piggin <piggin@cyberone.com.au>
To: Andrew Morton <akpm@osdl.org>
Cc: chrisw@osdl.org, nickpiggin@yahoo.com.au,
	linux-kernel@vger.kernel.org,
	Dave Jones <davej@codemonkey.org.uk>
Subject: Re: kswapd in tight loop 2.6.9-rc3-bk-recent
Date: Fri, 08 Oct 2004 13:15:56 +1000	[thread overview]
Message-ID: <4166066C.3030008@cyberone.com.au> (raw)
In-Reply-To: <20041007200109.57ce24ae.akpm@osdl.org>



Andrew Morton wrote:

>Nick Piggin <piggin@cyberone.com.au> wrote:
>
>>>Chris Wright <chrisw@osdl.org> wrote:
>>>
>> >
>> >>(whereas I could get the mainline code, and the
>> >> one-liner to spin right off).  
>> >>
>> >
>> >How?  (up to and including .config please).
>> >
>> >
>> >
>>
>> Ah, free_pages <= pages_high, ie. 0 <= 0, which is true;
>> commence spinning.
>>
>
>Maybe.  It requires that the zonelists be screwy:
>
>

Note that if this *was* the problem, then it would not be the fault of
my recent patch, rather *every* allocation (when memory is lowish)
would cause kswapd to wind through its priority loop then stop.
Probably not using enough CPU for anyone to really notice though.


  parent reply	other threads:[~2004-10-08  3:21 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-10-07 21:20 kswapd in tight loop 2.6.9-rc3-bk-recent Chris Wright
2004-10-07 21:39 ` Dave Jones
2004-10-07 21:49   ` Chris Wright
2004-10-07 23:40 ` Andrew Morton
2004-10-08  0:34   ` Nick Piggin
2004-10-08  0:37     ` Andrew Morton
2004-10-08  0:51       ` Chris Wright
2004-10-08  1:40         ` Andrew Morton
2004-10-08  0:42     ` Andrew Morton
2004-10-08  1:41       ` Chris Wright
2004-10-08  1:51         ` Chris Wright
2004-10-08  1:53           ` Andrew Morton
2004-10-08  2:46             ` Nick Piggin
2004-10-08  3:01               ` Andrew Morton
2004-10-08  3:13                 ` Nick Piggin
2004-10-08  3:30                   ` Andrew Morton
2004-10-08  3:54                     ` Nick Piggin
2004-10-08  4:48                       ` Nick Piggin
2004-10-08  4:57                         ` Andrew Morton
2004-10-08  5:21                     ` Chris Wright
2004-10-08  5:27                       ` Chris Wright
2004-10-08 10:10                       ` Nick Piggin
2004-10-08  3:15                 ` Nick Piggin [this message]
2004-10-08  3:05             ` Chris Wright

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