Date: Mon, 3 May 2010 15:48:14 -0700 From: Jeremy Chadwick <freebsd@jdc.parodius.com> To: Bryce Edwards <bryce@bryce.net> Cc: freebsd-stable@freebsd.org Subject: Re: 8-STABLE performance issues on Supermicro Core i7 Message-ID: <20100503224814.GA9477@icarus.home.lan> In-Reply-To: <p2j34da63c51005021940ja279a71cx8d59a2275354699f@mail.gmail.com> References: <m2j34da63c51005010810r21e40b23m76d9beccd5daaf8c@mail.gmail.com> <p2j34da63c51005021940ja279a71cx8d59a2275354699f@mail.gmail.com>
next in thread | previous in thread | raw e-mail | index | archive | help
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@parodius.com | | Parodius Networking http://www.parodius.com/ | | UNIX Systems Administrator Mountain View, CA, USA | | Making life hard for others since 1977. PGP: 4BD6C0CB |
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20100503224814.GA9477>