*BSD News Article 57518


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From: nate@trout.sri.MT.net (Nate Williams)
Newsgroups: comp.unix.bsd.bsdi.misc
Subject: Re: BSDI 2.0.1 swapspace leak fix?
Date: 14 Dec 1995 22:37:33 GMT
Organization: SRI Intl. - Montana Operations
Lines: 32
Message-ID: <4aq8vd$s8u@helena.MT.net>
References: <4a0hk0$20d@news2.ucsd.edu> <4afu71$ai@picasso.op.net> <4akj9p$5m2@helena.MT.net> <4amvp8$eqs@web.ddp.state.me.us>
Reply-To: "Nate Williams" <nate@sneezy.sri.com>
NNTP-Posting-Host: trout.sri.mt.net

In article <4amvp8$eqs@web.ddp.state.me.us>,
David Miller <isdmill@gatekeeper.ddp.state.me.us> wrote:
>Nate Williams (nate@trout.sri.MT.net) wrote:
>: In article <4afu71$ai@picasso.op.net>,
>: Bruce Momjian <root@candle.pha.pa.us> wrote:
>: >David Bauman (david@terra.igcom.net) wrote:
>: [ Swap space leak ]
>
>: >I worked with Mike Karels to identify the bug in 1.0.  He has looked
>: >into it and talked to the initial Mach developer and the solution is not
>: >easy.  It exists in all 386 BSD implementions as far as I know.
>
>: It is fixed in FreeBSD by completely re-writing the VM system from
>: scratch.  Along with this a whole hoard of bugs were fixed when the VM
>: buffer cache and free memory pool became integrated as well.  I/O
>: performance of FreeBSD systems really scream now. :)
>
>What version of FreeBSD? 2.1?

All versions of FreeBSD since 1.1.5 have the re-write, but it was in 2.0
that the merged VM-buffer cache occurred.

However, all known bugs in the VM system have been fixed in 2.1, but that
doesn't mean there aren't any unknown ones. :)


Nate
-- 
nate@sneezy.sri.com    | Research Engineer, SRI Intl. - Montana Operations
nate@trout.sri.MT.net  | Loving life in God's country, the great state of
work #: (406) 449-7662 | Montana.
home #: (406) 443-7063 | A fly pole and a 4x4 Chevy truck = Heaven on Earth