Re: High CPU usage with sata_nv
From: Robert Hancock
Date: Tue Feb 20 2007 - 22:44:18 EST
Matthew Fredrickson wrote:
I have noticed something that might be related as well. I am working on
a device driver that would have periodic data errors due to
exceptionally long interrupt handling latency. I have come to the point
that I suspect that it's the sata_nv driver, and now that we can't do
the hdparm -u1 option for sata, it seems to be a bigger problem.
What kernel are you using? There were some complaints about latency
problems (the ATA status register read taking a ridiculous amount of
time to complete) on sata_nv previously, but 2.6.20 should eliminate
that problem at least on nForce4 chipsets..
--
Robert Hancock Saskatoon, SK, Canada
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Home Page: http://www.roberthancock.com/
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