From: "Russ Cox" <rsc@swtch.com>
To: 9fans@cse.psu.edu
Subject: Re: [9fans] kfs performance
Date: Tue, 2 Mar 2004 21:19:52 -0500 [thread overview]
Message-ID: <E1AyLzG-000DO5-LD@t40.swtch.com> (raw)
In-Reply-To: Your message of "Tue, 02 Mar 2004 18:15:57 +0400." <200403021415.i22EFvs9073684@adat.davidashen.net>
> It takes three times more time to write a file under Plan9
> than under FreeBSD on the same computer (bunzip2 cdinstall.iso.bz2
> , 200 Mb unzipped).
>
> Is there something wrong with my setup, or is it normal?
this is pretty normal. kfs isn't batching disk writes or paying
attention to disk layout, so you get what you get. i bet that
freebsd is a bit more clever with its disk. i'm surprised it's only
a factor of three. fossil isn't any better in this regard, although
it does buffer more.
disk file system speed is one area where i do wish plan 9 was
zippier (as opposed to context switches betwen threads).
russ
next prev parent reply other threads:[~2004-03-03 2:19 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-03-02 14:15 David Tolpin
2004-03-02 14:27 ` matt
2004-03-02 14:55 ` ron minnich
2004-03-02 15:34 ` gdiaz
2004-03-03 2:19 ` Russ Cox [this message]
2004-03-03 2:31 ` Jeff Sickel
2004-03-03 8:52 ` Charles Forsyth
2004-03-03 9:23 ` David Tolpin
2004-03-03 10:35 ` matt
2004-03-03 9:48 ` matt
2004-03-03 9:51 ` David Tolpin
2004-03-03 19:15 ` Russ Cox
2004-03-03 19:28 ` C H Forsyth
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