SCSI performance issue

Nietzel, Earle R (earle.nietzel@es.unisys.com)
Wed, 8 Sep 1999 03:35:09 -0500


Does anyone have or know of any SCSI benchmarking tools?

I have just installed two 9.1Gig LVD drives on a Adaptec 2940 U2W
controller.

Everything is working fine in Linux as far as access to the drives. I have
noticed that there is not a big performance difference from my IDE drive to
the SCSI devices. Also I expected less CPU activity due to offloading the
i/o instructions to the controllers i/o processor. I actually have seen more
CPU resources being used now.

Anyone come across the same symptoms?
Any information on tuning the SCSI devices? I have left everything at there
default settings in the kernel.

Earle Nietzel

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