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linux vm virtual memory


© December 2004 (various authors)

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From: zaitcev@yahoo.com (Pete Zaitcev)
Newsgroups: comp.os.linux.misc
Subject: Re: UVM virtual memory algorithm
References: <spl7r8mfr5j101@corp.supernews.com> 
Message-Id: <slrn8pleld.l6d.zaitcev@js006.noname.ru>
Date: Wed, 16 Aug 2000 20:21:24 GMT

On Wed, 16 Aug 2000 10:05:36 -0500, Justin Smith <jsmith@mcs.drexel.edu> wrote:
> Will the Linux kernel ever use the UVM virtual memory algorithm that
> has speeded up NetBSD?

AFAIK, UVM was a big step in the way Chuck Cranor disposed of
multi-layer object heirarchies, which do not exist in Linux
anyways. But I am incompetent, so dig out Chuck's USENIX-99
presentation. That should explain how he extracts any performance
advantages.



Rik van Riel is working on a Linux VM rewrite which looks
interesting to me. I do not know of any whitepapers coming
from his direction, so you need to dig linux-kernel archives.
His patch may have a UVM-like effect on the performance.

--Pete


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