*BSD News Article 56664


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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: 12 Dec 1995 18:56:57 GMT
Organization: SRI Intl. - Montana Operations
Lines: 24
Message-ID: <4akj9p$5m2@helena.MT.net>
References: <4a0hk0$20d@news2.ucsd.edu> <4aa9mf$6pr@picasso.op.net> <4aaehi$eav@moon.igcom.net> <4afu71$ai@picasso.op.net>
Reply-To: "Nate Williams" <nate@sneezy.sri.com>
NNTP-Posting-Host: trout.sri.mt.net

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. :)

Now, there may be other bugs in FreeBSD that have been fixed in BSD/OS,
but a swap leak is *NOT* one of them. :)


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