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From: orc@pell.chi.il.us (david parsons)
Newsgroups: comp.os.linux.development.system,comp.unix.bsd.freebsd.misc
Subject: Re: Linux vs FreeBSD disk io performance
Date: 16 Oct 1996 19:40:18 -0700
Organization: Every flame is sacred, every flame is great
Lines: 17
Message-ID: <5446ai$20e@pell.pell.chi.il.us>
References: <86g23ey1uc.fsf@romulus.ihosteng.priv.no>
NNTP-Posting-Host: pell.pell.chi.il.us
Xref: euryale.cc.adfa.oz.au comp.os.linux.development.system:33690 comp.unix.bsd.freebsd.misc:29495
In article <86g23ey1uc.fsf@romulus.ihosteng.priv.no>,
Ivar Hosteng <ivarh@romulus.ihosteng.priv.no> wrote:
> Other tests I have done seems to comfirm
>that FreeBSD is handling heavy disk IO with more grace than linux
>(2.0.21) does.
It may be a side-effect of sync vs async disk i/o; when you're doing an
expire, you're doing a whole bunch of metadata updates which will get
committed immediately on freeBSD but which will pool up on a Linux
machine and only commit when update kicks in or you do something that
drives data out to disk.
How many articles do you expire every night?
____
david parsons \bi/ orc@pell.chi.il.us
\/