On Wed, 24 Jan 2001, Tom Sightler wrote:
> I temporarily disabled that code and the
> increase in IO's per second is measurable, though not earth shattering, but
> I was afraid to leave it that way because fast corrupted data is worth much
> less that only slightly slower good data.
I don't believe the problem is data corruption, but that there could be
some CRC data residual from an I/O which causes the driver to issue a
SCSI bus reset. As bus resets really kill performance, Doug thought it
better to slow the drive to 80 rather than run at 160 and have occasional
bus resets.
-- Matt Domsch Dell Linux Systems Group Linux OS Development www.dell.com/linux- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org Please read the FAQ at http://www.tux.org/lkml/
This archive was generated by hypermail 2b29 : Wed Jan 31 2001 - 21:00:19 EST