From: Andreas Peter <ujq7@rz.uni-karlsruhe.de>
To: linux-kernel@vger.kernel.org
Subject: Re: SW-RAID0 Performance problems
Date: Sat, 14 Apr 2001 15:09:37 +0200 [thread overview]
Message-ID: <01041415093700.01502@debian> (raw)
In-Reply-To: <Pine.LNX.4.10.10104131048550.1669-100000@coffee.psychology.mcmaster.ca> <01041411380600.00516@debian> <20010414142839.A12760@ping.be>
In-Reply-To: <20010414142839.A12760@ping.be>
Am Samstag, 14. April 2001 14:28 schrieb Kurt Roeckx:
> Does turning unmaskirq on help?
Already tried this, but it doesn't help
The actual settings (same on /dev/hdc):
bash-2.04# hdparm /dev/hda
/dev/hda:
multcount = 16 (on)
I/O support = 1 (32-bit)
unmaskirq = 1 (on)
using_dma = 1 (on)
keepsettings = 0 (off)
nowerr = 0 (off)
readonly = 0 (off)
readahead = 8 (on)
geometry = 59556/16/63, sectors = 60032448, start = 0
bash-2.04# hdparm -tT /dev/md0
/dev/md0:
Timing buffer-cache reads: 128 MB in 1.30 seconds = 98.46 MB/sec
Timing buffered disk reads: 64 MB in 3.14 seconds = 20.38 MB/sec
bash-2.04# hdparm -tT /dev/hda3
/dev/hda3:
Timing buffer-cache reads: 128 MB in 1.31 seconds = 97.71 MB/sec
Timing buffered disk reads: 64 MB in 2.26 seconds = 28.32 MB/sec
Andreas
--
Andreas Peter *** ujq7@rz.uni-karlsruhe.de
next prev parent reply other threads:[~2001-04-14 13:02 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <Pine.LNX.4.10.10104131048550.1669-100000@coffee.psychology.mcmaster.ca>
2001-04-13 15:36 ` SW-RAID0 Performance problems Andreas Peter
2001-04-13 16:07 ` David Rees
2001-04-13 16:28 ` Andreas Peter
2001-04-14 7:04 ` David Rees
2001-04-14 9:38 ` Andreas Peter
2001-04-14 12:28 ` Kurt Roeckx
2001-04-14 13:09 ` Andreas Peter [this message]
2001-04-13 18:11 ` Tim Moore
2001-04-14 10:45 ` Andreas Peter
2001-04-13 11:47 Andreas Peter
2001-04-13 16:01 ` Jakob Østergaard
2001-04-13 16:28 ` Andreas Peter
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