On Sun, Nov 04, 2007 at 05:09:50PM +0100, Geert Hendrickx wrote:
>On Mon, Oct 08, 2007 at 01:37:13PM -0400, George Georgalis wrote:
>> On Fri, Oct 05, 2007 at 11:41:43AM -0400, George Georgalis wrote:
>> >On Fri, Oct 05, 2007 at 10:38:25AM -0400, George Georgalis wrote:
>> >>well the thing is, I have an identical box in production with
>> >>netbsd-3 and it doesn't have a problem compared to this RC1 box.
>> >>
>> >>I looked in BIOS but didn't see any "sata emulate pata" options.
>> >>maybe the bios is different on this box.  I'm going to try
>> >>rebuilding this host with -3 and see if I get any improvement.
>> >
>> >
>> >Absolutely! This box runs 20 times faster with 3.1
>> >
>> >NetBSD rock 3.1 NetBSD 3.1 (GENERIC) #0: Mon Oct 30 21:47:28 UTC 2006  builds@b1.netbsd.org:/home/builds/ab/netbsd-3-1-RELEASE/amd64/200610302053Z-obj/home/builds/ab/netbsd-3-1-RELEASE/src/sys/arch/amd64/compile/GENERIC amd64
>> >
>> >I presume it's a nForce4 IDE issue, but in any event the syncer
>> >seems to remain busy and sys cpu utilization remains high (almost
>> >exclusive) with 4_RC1.
>> >
>> >Can anyone give me more specific clues (file) to blame on a PR?
>> 
>> This is resolved in 4_RC2. no apparent slowdown.
>
>
>I'm seeing the same thing with my Sun X2100.  Performs nicely with NetBSD 3.x,
>but slow like a dog with NetBSD 4.x.  I'm still having it with 4.0_RC3.

I have a GENERIC i386 4-RC3 with the problem since I last messed with it.
One thing I've been meaning to try is put wd0 in the other drive slot,
that's one thing I did when I went to RC2.

>George: did you find the "SATA emulate PATA" option in your X2100's BIOS?  I
>don't see any such setting.  Are you using ahcisata(4) now?

I've used a generic config, from the cd or netbsd-4 through this exercise.
another thing to try is optimal vs fail-safe defaults in the bios, don't
remember what I had/have. I looked several times for "SATA emulate PATA"
but never found it.

// George



-- 
George Georgalis, information system scientist <IXOYE><