8-STABLE performance issues on Supermicro Core i7
Jeremy Chadwick
freebsd at jdc.parodius.com
Mon May 3 22:48:17 UTC 2010
On Sun, May 02, 2010 at 09:40:13PM -0500, Bryce Edwards wrote:
> I've got a new Supermicro X58 system with an Intel Core i7 930 with 6
> GB ram that is not performing nearly as fast as it should in many ways
> (compiling, network transfers).
By the way, an interesting thread you might read -- yes it's long.
Subject "Only 70% of theoretical peak performance on FreeBSD 8/amd64,
Corei7 920":
http://lists.freebsd.org/pipermail/freebsd-stable/2010-April/thread.html#56253
The performance stats you're providing are much lower than 70% peak, so
I'm not sure there's a correlation, but that's a thread which did bring
up odd performance-affecting changes in the i5/i7 architecture:
http://lists.freebsd.org/pipermail/freebsd-stable/2010-April/056332.html
It's also hard to determine from the thread given its length, but I
believe pinning a process to an individual CPU increased (~20%+) the OPs
performance.
http://lists.freebsd.org/pipermail/freebsd-stable/2010-April/056316.html
http://lists.freebsd.org/pipermail/freebsd-stable/2010-April/056339.html
--
| Jeremy Chadwick jdc at parodius.com |
| Parodius Networking http://www.parodius.com/ |
| UNIX Systems Administrator Mountain View, CA, USA |
| Making life hard for others since 1977. PGP: 4BD6C0CB |
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