From: Nick Piggin <piggin@cyberone.com.au>
To: David Mansfield <lkml@dm.cobite.com>
Cc: Andrew Morton <akpm@digeo.com>, linux-kernel@vger.kernel.org
Subject: Re: 2.5.59mm5, raid1 resync speed regression.
Date: Sat, 25 Jan 2003 03:55:58 +1100 [thread overview]
Message-ID: <3E31701E.4020101@cyberone.com.au> (raw)
In-Reply-To: Pine.LNX.4.44.0301241141540.32240-100000@admin
David Mansfield wrote:
>Hi Andrew, list,
>
>I'm booting 2.5.59mm5 to run a database workload benchmark that I've been
>running against various kernels. I'll post those results if they are
>interesting later, but I did notice that the raid1 resync is proceeding at
>half the speed (at best) that it usually does (vs. 2.5.59 that is).
>
>It currently at about 4-8 mb/sec (and falling as resync progresses),
>usually at 12-15 mb/sec.
>
>System is SMP 2xPIII 866mhz, 2GB ram, raid1 is two 15k U160 (running only
>an Ultra speed :-( because the onboard controller sucks) SCSI disks, same
>channel on aic7xxx.
>
>Kernel is 2.5.59-mm5 compiled with gcc version 2.96 20000731 (Red Hat
>Linux 7.3 2.96-112)
>
>David
>
Thanks for the report. Please do post any results you get.
What disk workload exactly does a RAID1 resync consist of?
Nick
next prev parent reply other threads:[~2003-01-24 16:46 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-01-24 16:48 2.5.59mm5, raid1 resync speed regression David Mansfield
2003-01-24 16:55 ` Nick Piggin [this message]
2003-01-24 18:18 ` David Mansfield
2003-01-24 18:41 ` Nick Piggin
2003-01-24 22:34 ` 2.5.59mm5 database 'benchmark' results David Mansfield
2003-01-24 23:03 ` Andrew Morton
2003-01-27 15:14 ` David Mansfield
2003-01-24 22:40 ` 2.5.59mm5, raid1 resync speed regression Mitchell Blank Jr
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