From: Andreas Dilger <adilger@clusterfs.com>
To: "Christopher E. Brown" <cbrown@woods.net>
Cc: "Griffiths, Richard A" <richard.a.griffiths@intel.com>,
"'Andrew Morton'" <akpm@zip.com.au>,
mgross@unix-os.sc.intel.com, "'Jens Axboe'" <axboe@suse.de>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
lse-tech@lists.sourceforge.net
Subject: Re: ext3 performance bottleneck as the number of spindles gets large
Date: Sat, 22 Jun 2002 22:33:10 -0600 [thread overview]
Message-ID: <20020623043310.GL22411@clusterfs.com> (raw)
In-Reply-To: <Pine.LNX.4.44.0206222119500.28630-100000@spruce.woods.net>
On Jun 22, 2002 22:02 -0600, Christopher E. Brown wrote:
> On Thu, 20 Jun 2002, Griffiths, Richard A wrote:
>
> > I should have mentioned the throughput we saw on 4 adapters 6 drives was
> > 126KB/s. The max theoretical bus bandwith is 640MB/s.
>
> This is *NOT* correct. Assuming a 64bit 66Mhz PCI bus your MAX is
> 503MB/sec minus PCI overhead...
Assuming you only have a single PCI bus...
Cheers, Andreas
--
Andreas Dilger
http://www-mddsp.enel.ucalgary.ca/People/adilger/
http://sourceforge.net/projects/ext2resize/
next prev parent reply other threads:[~2002-06-23 4:34 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-06-20 21:50 ext3 performance bottleneck as the number of spindles gets la rge Griffiths, Richard A
2002-06-21 7:58 ` ext3 performance bottleneck as the number of spindles gets large Andrew Morton
2002-06-21 18:46 ` mgross
2002-06-21 19:26 ` Chris Mason
2002-06-21 19:56 ` Andrew Morton
2002-06-23 4:02 ` Christopher E. Brown
2002-06-23 4:33 ` Andreas Dilger [this message]
2002-06-23 6:00 ` Christopher E. Brown
2002-06-23 6:35 ` [Lse-tech] " William Lee Irwin III
2002-06-23 7:29 ` Dave Hansen
2002-06-23 7:36 ` William Lee Irwin III
2002-06-23 7:45 ` Dave Hansen
2002-06-23 7:55 ` Christopher E. Brown
2002-06-23 8:11 ` David Lang
2002-06-23 8:31 ` Dave Hansen
2002-06-23 16:21 ` Martin J. Bligh
2002-06-23 17:06 ` Eric W. Biederman
-- strict thread matches above, loose matches on Subject: below --
2002-06-20 15:26 ext3 performance bottleneck as the number of spindles gets la rge Griffiths, Richard A
2002-06-20 20:18 ` ext3 performance bottleneck as the number of spindles gets large Andrew Morton
2002-06-20 18:08 ` mgross
2002-06-20 21:25 ` Andrew Morton
2002-06-19 21:29 mgross
2002-06-20 0:54 ` Andrew Morton
2002-06-20 9:54 ` Stephen C. Tweedie
2002-06-20 1:55 ` Andrew Morton
2002-06-20 6:05 ` Jens Axboe
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