From mboxrd@z Thu Jan  1 00:00:00 1970
Message-ID: <000d01bfda37$f34c3ee0$0a1e18ac@local>
From: "Manfred Spraul" <manfred@colorfullife.com>
References: <87r99t8m2r.fsf@atlas.iskon.hr>
Subject: Re: shrink_mmap() change in ac-21
Date: Mon, 19 Jun 2000 23:47:14 +0200
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From: "Zlatko Calusic" <zlatko@iskon.hr>
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To: zlatko@iskon.hr, alan@redhat.com
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>
> The reason is balancing of the DMA zone (which is much smaller on a
> 128MB machine than the NORMAL zone!). shrink_mmap() now happily evicts
> wrong pages from the memory and continues doing so until it finally
> frees enough pages from the DMA zone. That, of course, hurts caching
> as the page cache gets shrunk a lot without a good reason.
>
What caused the zone balancing?
Did you deliberately allocate GFP_DMA memory (sound card, old scsi card,
floppy disk, ...) or was it during "normal" operation?

--
    Manfred

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