From: andrey mirtchovski <mirtchov@cpsc.ucalgary.ca>
To: 9fans@cse.psu.edu
Subject: Re: [9fans] fossil speed
Date: Wed, 26 Jan 2005 14:36:29 -0700 [thread overview]
Message-ID: <bcad6afcd37a3dc9f5ec58a336592223@plan9.ucalgary.ca> (raw)
In-Reply-To: <a4a7e15887de2ee9b8b6a0e022ca83b2@vitanuova.com>
> has anyone else found fossil to be very slow? even when it's not
> using venti at all (e.g. extracting a large tar archive).
>
"almost" identical machines using ide disks (2.0 vs 2.6ghz cpu's):
on plan9:
plan9% time tar cv xen | gzip > xen.tgz
a xen/9pccpu 3189 blocks
a xen/etc_xen_plan9 7 blocks
a xen/kfs_root_image.gz 298211 blocks
0.42u 6.48s 56.15r tar cv xen
plan9%
then this very same file was copied and untarred on the linux box:
$ time tar cvf - xen | gzip > xen.tgz
xen/
xen/9pccpu
xen/etc_xen_plan9
xen/kfs_root_image.gz
real 0m29.123s
user 0m22.805s
sys 0m2.635s
$
i have both rwm and dma turned on. the disks are IDE in both cases.
for Plan 9, fossil is mounted through a devfs mirror of two disks,
which should slow it down even more.
andrey
next prev parent reply other threads:[~2005-01-26 21:36 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-01-26 2:00 [9fans] browse /sys/src YAMANASHI Takeshi
2005-01-26 2:27 ` Kenji Okamoto
2005-01-26 2:31 ` Michael H. Collins
2005-01-26 2:45 ` boyd, rounin
2005-01-26 3:50 ` Russ Cox
2005-01-26 4:28 ` Kenji Okamoto
2005-01-26 4:39 ` Kenji Okamoto
2005-01-26 8:49 ` Skip Tavakkolian
2005-01-26 10:00 ` Matthias Teege
2005-01-26 21:32 ` [9fans] fossil speed rog
2005-01-26 21:36 ` andrey mirtchovski [this message]
2005-01-26 22:09 ` Charles Forsyth
2005-01-26 22:18 ` andrey mirtchovski
2005-01-26 22:22 ` andrey mirtchovski
2005-01-26 22:48 ` rog
2005-01-26 22:26 ` rog
2005-01-26 22:13 ` Charles Forsyth
2005-01-26 22:15 ` Charles Forsyth
2005-01-26 22:40 ` andrey mirtchovski
2005-01-27 2:47 ` Russ Cox
2005-01-27 19:20 ` rog
2005-01-27 7:51 ` Fco. J. Ballesteros
2005-01-27 21:09 ` geoff
2005-01-27 21:23 ` andrey mirtchovski
2005-01-27 21:35 ` Russ Cox
2005-01-27 22:28 ` geoff
2005-01-28 2:11 ` Kenji Okamoto
2005-01-28 4:08 ` geoff
2005-01-28 4:39 ` Kenji Okamoto
2005-01-28 4:54 ` geoff
2005-01-27 3:39 ` boyd, rounin
2005-01-26 9:55 ` [9fans] browse /sys/src Fco. J. Ballesteros
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