[Bug 192353] Re: 100% CPU usage during disk I/O with SATA/PATA

[Gordon Mckeown]

Well, no, in my case it wasn't a bug; it was a quirk of the way CPU
usage is reported. I would suggest you have a different issue, since DMA
was working fine for me as you can see from my hdparm output above.

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100% CPU usage during disk I/O with SATA/PATA
https://bugs.launchpad.net/bugs/192353
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