Date: Mon, 03 Dec 2007 14:10:39 +0100 From: Ivan Voras <ivoras@freebsd.org> To: freebsd-stable@freebsd.org Subject: Re: 2 x quad-core system is slower that 2 x dual core on FreeBSD Message-ID: <fj0uuh$sc5$1@ger.gmane.org> In-Reply-To: <4753D9D7.7060900@mawer.org> References: <20071201213732.GA16638@cannabis.dataforce.net> <1497741406.20071201230441@rulez.sk> <20071202174540.GA29572@cannabis.dataforce.net> <200712020844.49718.linimon@FreeBSD.org> <4753C9E4.1060200@chistydom.ru> <4753D157.80208@chistydom.ru> <4753D9D7.7060900@mawer.org>
next in thread | previous in thread | raw e-mail | index | archive | help
Antony Mawer wrote: > Have you tried testing with different values for kern.hz? I am by no > means an expert, but have stumbled across various postings over the past > few years that suggest the high value (1000) used by modern (5.x+?) > kernels can be pessimistic for some workloads... > > If you could try testing with some other values by setting in > /boot/loader.conf, eg: > > kern.hz="100" AFAIK this was tried and found irrelevant for this particular load. It may still help others.
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?fj0uuh$sc5$1>