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Date: Fri, 26 Sep 2008 20:44:20 -0700
From: Peter Grehan <grehan@freebsd.org>
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Cc: freebsd-ppc@freebsd.org
Subject: Re: Call for testers: Apple ATA DMA
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Hi Nathan,

 > If I can get positive reports from a few more people who were
> having trouble, I'll drop this in the tree.

  The imac's ata-4 is working solidly at UDMA-66. The difference in CPU 
usage and i/o with dd at 32k block size is stunning: 2MB/7% idle before, 
18MB/75% idle with your patch.

later,

Peter.