Date: Tue, 30 Dec 2008 13:20:50 +0000 (UTC) From: naddy@mips.inka.de (Christian Weisgerber) To: freebsd-hackers@freebsd.org Subject: Re: lzo2 shows insane speed gap Message-ID: <gjd77i$1h19$1@lorvorc.mips.inka.de> References: <gjbf7c$hbm$1@lorvorc.mips.inka.de> <Pine.GSO.4.64.0812291512490.22968@zeno.ucsd.edu> <20081230004747.GA55542@lorvorc.mips.inka.de> <20081230020524.2563a6ac@gluon>
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Bruce Cran <bruce@cran.org.uk> wrote: > I'm running 8.0-CURRENT amd64 here on a Turion64 X2 machine. Without > malloc debugging (malloc.conf -> aj) 'make test' takes 25s; after > removing malloc.conf thus turning on debugging, it takes over 10 > minutes. Wow! That. Is. It. Toggling malloc debugging option J makes the "slow" machines "fast" and vice versa. > > Athlon 64 X2 5200+ 2.6 GHz, FreeBSD 8.0-CURRENT amd64 ~60 min 19 seconds. I guess that falls under the "obvious" configuration differences to check, but since it usually doesn't cause a significant slowdown I completely forgot about it. Embarrassing. But still. Two orders of magnitude? That is a pathological case. -- Christian "naddy" Weisgerber naddy@mips.inka.de
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