Skip site navigation (1)Skip section navigation (2)
Date:      Thu, 07 Jul 2011 14:21:27 +0200
From:      Ivan Voras <ivoras@freebsd.org>
To:        freebsd-current@freebsd.org
Cc:        freebsd-questions@freebsd.org
Subject:   Re: Heavy I/O blocks FreeBSD box for several seconds
Message-ID:  <iv48c7$nab$2@dough.gmane.org>
In-Reply-To: <4E14A54A.4050106@freebsd.org>
References:  <20110706170132.GA68775@troutmask.apl.washington.edu>	<5080.1309971941@critter.freebsd.dk>	<20110706180001.GA69157@troutmask.apl.washington.edu> <4E14A54A.4050106@freebsd.org>

next in thread | previous in thread | raw e-mail | index | archive | help
On 06/07/2011 20:11, Nathan Whitehorn wrote:

> I've seen exactly this problem with multi-threaded math libraries, as
> well. Using parallel GotoBLAS on FreeBSD gives terrible performance
> because the threads keep migrating between CPUs, causing frequent cache
> misses.

On both schedulers?




Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?iv48c7$nab$2>