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Re: top info

On Sun, 2004-05-30 at 23:17 +0200, Olaf Hartmann wrote:
> Corin Langosch wrote:
> > so that basically means i should replace my IDE drive
> > with a SCSI drive, because much of my cpu time is spend
> > for IO-requests? does SATA help here?
> No.
> As Paul said, your CPU is just too bored to do anything else than 
> waiting for IO.

But his point is that he's asking whether the disk system
is the bottleneck, and whether moving from PATA to SCSI or
SATA would mitigate the problem.

Unfortunately, Corin, *we* can't know.  Maybe the CPUs are
in wa mode because there's just nothing to do....

If the disk system is getting pounded, *then* either move
to SCSI, or, more cheaply, get a PCI EIDE card, some more
PATA drives, and spread the load.  Of course, 'eventually'
you'll bottleneck on the 32-bit/33MHz PCI bus, and need to
move to a server mobo.

Of course, if the CPUs are waiting alot, and the disks are
*not* getting pounded, then you've got excess capacity.

Ron Johnson <ron.l.johnson@cox.net>

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