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The following is an archive of a post made to our 'vox-tech mailing list' by one of its subscribers.

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Re: [vox-tech] cdrecord question
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Re: [vox-tech] cdrecord question

On Tue, Nov 14, 2000 at 06:04:41PM -0800, Foo Lim wrote:
> On Tue, 14 Nov 2000, Bill Broadley wrote:
> > > Is that IDE?
> > > Micah
> > 
> > Yeah.
> > 
> > Using a single drive I manage 30-35 MB/sec sustained.
> > 
> > In a 3 disk raid I manage 60-65 MB/sec (limited by the PCI bus most likely).
> Are you using hdparm to test that?

hahn:              -------Sequential Output-------- ---Sequential Input-- --Random--
hahn-              -Per Char- --Block--- -Rewrite-- -Per Char- --Block--- --Seeks---
hahn-Machine    MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU  /sec %CPU
hahn-          768 11281 98.9 50803 27.9 26722 21.7 12284 99.5 90916 52.3 335.0  1.5

Translations, 90 MB/sec read, 50 MB/sec write.  The machine in question
had 128 MB ram at the time.  I.e. the linear 768 MB accesses were
not hitting cache.

I don't trust hdparm...


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