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Date:      Wed, 16 Mar 2005 14:17:49 +0100
From:      "Colin J. Raven" <colin@kenmore.kozy-kabin.nl>
To:        Giorgos Keramidas <keramida@ceid.upatras.gr>
Cc:        freebsd-questions@freebsd.org
Subject:   Re: Illogical usage of swap
Message-ID:  <20050316141635.A2949@kenmore.kozy-kabin.nl>
In-Reply-To: <20050316130754.GC7986@orion.daedalusnetworks.priv>
References:  <20050316123901.U2949@kenmore.kozy-kabin.nl> <444qfbpydd.fsf@be-well.ilk.org> <20050316125446.GA7986@orion.daedalusnetworks.priv> <20050316130754.GC7986@orion.daedalusnetworks.priv>

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On Mar 16 at 15:07, Giorgos Keramidas said:

> On 2005-03-16 14:02, "Colin J. Raven" <colin@kenmore.kozy-kabin.nl> wrote:
>> On Mar 16 at 14:54, Giorgos Keramidas asked:
>>>> Free memory (or the lack thereof) isn't the issue though.
>>>>
>>>> The issue is this:
>>>> Swap: 8192M Total, 116K Used, 8192M Free
>>>> and that's the piece of the puzzle that has us all utterly baffled.
>>>>
>>>> No way in creation this box should be swapping.
>>>
>>> Do you, by any chance, have vm.swap_idle_enabled set to 1?
>>
>> No, it isn't:
>> gonzo# sysctl -a |grep vm.swap_idle_enabled
>> vm.swap_idle_enabled: 0
>
> Strange.  AFAIK, processes are not swapped out to disk unless there is a
> severe memory shortage.  The usual case is to have them "paged" out,
> which is a bit different.

That was my understanding also, and that's what's baffling us

Regards,
-Colin
--
Colin J. Raven
Wed Mar 16 14:17:00 CET 2005



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