Messages in this thread |  | | Date | Mon, 13 Nov 2000 23:33:57 -0600 | Subject | Re: IDE0 /dev/hda performance hit in 2217 on my HW | From | Peter Samuelson <> |
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[Linda Walsh] > Under 2217, the xfer speed drops to near 1,000K/s. This is for both > 'badblocks' > and a 'dd' if=/dev/hda of=/dev/hdb bs=256k. In both instances, I notice > a near 90% performance degredation.
Off the top of my head it sounds like you are using the wrong ide i/o mode. Your hardware probably supports UDMA66 but you are getting one of the old PIO modes by default. What chipset does the Inspiron 7500 use? (Probably Intel something. Dell loves Intel.)
A short session with 'hdparm' will confirm or refute this theory.
Andre Hedrick's IDE patch reportedly does a much better job of supporting and auto-configuring modern chipsets than vanilla 2.2.
http://www.??.kernel.org/pub/linux/kernel/people/hedrick/
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