From: "Manfred Spraul" <manfred@colorfullife.com>
From: "Zlatko Calusic" <zlatko@iskon.hr>
To: zlatko@iskon.hr
Cc: alan@redhat.com, linux-mm@kvack.org, linux-kernel@vger.rutgers.edu
Subject: Re: shrink_mmap() change in ac-21
Date: Tue, 20 Jun 2000 18:14:33 +0200 [thread overview]
Message-ID: <007501bfdad3$26288e90$0a1e18ac@local> (raw)
In-Reply-To: dnaeggn4o0.fsf@magla.iskon.hr
>
> Simple mathematics: On a 128MB machine, DMA zone is 16MB, thus NORMAL
> zone is 112MB. 112/16 = 7. So statistically, for every DMA page freed,
> we free another SEVEN! pages from the NORMAL zone. And we won't stop
> doing such a genocide until DMA zone recovers.
>
I'm also concerned about 1GB boxes:
the highmem zone only contains ~ 64 MB (or 128?), and so most allocations go
into a tiny zone and are then "downgraded" to GFP_NORMAL.
Perhaps we should switch to per-zone lru lists?
--
Manfred
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next prev parent reply other threads:[~2000-06-20 16:14 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2000-06-19 20:14 shrink_mmap() change in ac-21 Zlatko Calusic
2000-06-19 21:07 ` Rik van Riel
2000-06-19 21:46 ` Jamie Lokier
2000-06-19 22:10 ` Rik van Riel
2000-06-19 22:43 ` Andrea Arcangeli
2000-06-19 22:48 ` Andrea Arcangeli
2000-06-20 9:03 ` Zlatko Calusic
2000-06-20 16:18 ` Rik van Riel
2000-06-20 16:53 ` Juan J. Quintela
2000-06-20 17:30 ` Manfred Spraul, Juan J. Quintela
2000-06-20 17:41 ` Juan J. Quintela
2000-06-20 19:00 ` Andrea Arcangeli
2000-06-19 21:47 ` Manfred Spraul, Zlatko Calusic
2000-06-20 8:21 ` Zlatko Calusic
2000-06-20 16:14 ` Manfred Spraul, Zlatko Calusic [this message]
2000-06-20 17:01 ` willy
2000-06-20 17:03 ` Alan Cox
[not found] <200006202027.NAA01142@penguin.transmeta.com>
2000-06-20 22:59 ` Rik van Riel
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