Re: Linux i/o tweaking

Jakob Østergaard (jakob@unthought.net)
Thu, 15 Nov 2001 17:41:50 +0100

On Thu, Nov 15, 2001 at 05:32:29PM +0100, Roy Sigurd Karlsbakk wrote:
> > Could you please try and profile where the time is spent? Boot with
> > profile=2, and then do
> >
> > # readprofile -r
> > # do I/O testing
> > # readprofile | sort -nr
>
> I will.
>
> However ... Is it normal for a server to max out 2xPIII 1266MHz CPUs by
> reading from software RAID-5???

Certainly not.

Well, if you down-scale the experiment it's not. Reading 10.7 MB/sec
will not consume 10% of your two processors.

But queue systems are evil ;) I look forward to seeing the profile.

-- 
................................................................
:   jakob@unthought.net   : And I see the elder races,         :
:.........................: putrid forms of man                :
:   Jakob Østergaard      : See him rise and claim the earth,  :
:        OZ9ABN           : his downfall is at hand.           :
:.........................:............{Konkhra}...............:
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