Re: ext3 performance bottleneck as the number of spindles gets large

From: Jens Axboe (axboe@suse.de)
Date: Thu Jun 20 2002 - 01:05:08 EST

On Wed, Jun 19 2002, Andrew Morton wrote:
> mgross wrote:
> >
> > We've been doing some throughput comparisons and benchmarks of block I/O
> > throughput for 8KB writes as the number of SCSI addapters and drives per
> > adapter is increased.
> >
> > The Linux platform is a dual processor 1.2GHz PIII, 2Gig or RAM, 2U box.
> > Similar results have been seen with both 2.4.16 and 2.4.18 base kernel, as
> > well as one of those patched up O(1) 2.4.18 kernels out there.
>
> umm. Are you not using block-highmem? That is a must-have.
>
> http://www.kernel.org/pub/linux/kernel/people/andrea/kernels/v2.4/2.4.19pre9aa2/00_block-highmem-all-18b-12.gz

please use

http://www.kernel.org/pub/linux/kernel/people/axboe/patches/v2.4/2.4.19-pre10/block-highmem-all-19.bz2 

-- 
Jens Axboe

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