Date: Thu, 23 Jan 2003 11:59:05 -0800 (PST) From: John David Duncan <jdd@greatschools.net> To: Dan Nelson <dnelson@allantgroup.com> Cc: Rahul Siddharthan <rsidd@online.fr>, Kenneth Culver <culverk@yumyumyum.org>, Atte Peltomaki <atte.peltomaki@iki.fi>, freebsd-current@FreeBSD.ORG Subject: Re: Performance problems with 5.0-RELEASE Message-ID: <Pine.OSX.4.52.0301231150001.21428@cube> In-Reply-To: <20030123185657.GB54656@dan.emsphone.com> References: <20030123123522.C9068-100000@alpha.yumyumyum.org> <20030123181628.GA2185@papagena.rockefeller.edu> <20030123185657.GB54656@dan.emsphone.com>
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> H and < should only make a difference if you are low on memory. R is on
> by default in 5.0 anyway, due to A and J being on by default. Setting
> malloc.conf to "aj" makes it work like it does in 4.*.
Here are some benchmarks to illustrate that, using ubench (from
/usr/ports/benchmarks) on a dual xeon machine. Ubench MEM is
about 25% higher with "aj" than with the default.
4.7 5.0 with no 5.0 with "aj"
malloc.conf
-----------------------------------------------
Ubench CPU: 171031 159942 162281
Ubench MEM: 69884 60104 74198
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