Subject: Re: noncontingous DMA segments with mc0 at obio
To: None <>
From: None <>
List: port-mac68k
Date: 01/01/2007 13:42:53
On Tue, Jan 02, 2007 at 02:27:55AM +0900, Kazuyuki Inanaga wrote:
> I can't beleave Centris660AV gets 36min for "tar comp.tgz".
> Is AV model so slow?

Yes, unfortunately, the SCSI on the AV models when running NetBSD is
very slow, and causes many clock ticks to be lost :(
Michael Zucca wrote some code to add support for DMA SCSI
<>, but
it was sent as copies of the modified files, rather than a patch, and
nobody has gotten around to try to extract the changes and apply them
to newer source. Michael mentions that his code doesn't really improve
performance, but that it should be possible to refine it to make things
much faster.
Name: Dave Huang         |  Mammal, mammal / their names are called /
INet: |  they raise a paw / the bat, the cat /
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