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Unread postPosted: Mon Apr 17, 2006 10:02 pm 
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Joined: Sat Apr 15, 2006 9:37 pm
Posts: 15
Hi, I have been lurking for a while, and I love the site. Thanks for the all the help and info I have been finding. Recently I tried cloning the disk from an R10k O2 to a RM5200 O2. The OS is 6.5.29 on the 10k, and the previous OS on the 5k was 6.5.9. The system is much slower with the cloned 6.5.29 install. I went and disabled the same services, but... there is some kind of lag in interactivity. The console complains about the architecture changing. The framerate in Quake 2 is about the same between the 6.5.9 and 6.5.29 installs on the RM5200 machine. The disk went from a stock 4GB to a 10k RPM 9GB one, so that should have helped.

I know the R10000 and RM5200 are both MIPS IV, but is there some kind of optimization that IRIX does during the installation that I am missing out on by cloning between them (R10k does OOO, etc.)? Has anyone seen something like this before?

If there is no fix, then I will probably clone the 6.5.9 to the faster disk and then patch to 6.5.22, to get the Nekoware goods.

Jason


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Unread postPosted: Tue Apr 18, 2006 7:57 am 
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Joined: Fri Feb 13, 2004 10:37 pm
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Location: Ottawa, Canada >burp<
I did some testing with high versions of IRIX ( ~25, 27 ) and decided that they took O2 optimizations out, or added some non-O2 friendly stuff in later versions. I downgraded my R12k O2 to 6.5.22 and everything got speedy again, so not sure at which point the O2 bloat crept in, but 6.5.22 is fine and runs Nekoware.

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Unread postPosted: Tue Apr 18, 2006 9:14 pm 
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Joined: Sat Apr 15, 2006 9:37 pm
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Dr. Dave wrote:
I did some testing with high versions of IRIX ( ~25, 27 ) and decided that they took O2 optimizations out, or added some non-O2 friendly stuff in later versions. I downgraded my R12k O2 to 6.5.22 and everything got speedy again, so not sure at which point the O2 bloat crept in, but 6.5.22 is fine and runs Nekoware.


That's very interesting. Thanks for sharing this. I will try running 6.5.22 instead and see what happens.

Jason


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Unread postPosted: Tue Apr 18, 2006 9:30 pm 
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Joined: Sat Jan 25, 2003 10:17 pm
Posts: 333
Location: Melbourne, Australia
"That's very interesting. Thanks for sharing this. I will try running 6.5.22 instead and see what happens."


Cool, let the rest of us know what you find.


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