Date: Thu, 23 Jan 2003 13:16:28 -0500 From: Rahul Siddharthan <rsidd@online.fr> To: Kenneth Culver <culverk@yumyumyum.org> Cc: Atte Peltomaki <atte.peltomaki@iki.fi>, freebsd-current@FreeBSD.ORG Subject: Re: Performance problems with 5.0-RELEASE Message-ID: <20030123181628.GA2185@papagena.rockefeller.edu> In-Reply-To: <20030123123522.C9068-100000@alpha.yumyumyum.org>
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Kenneth Culver wrote: > > I hope someone could bring light to what's going on. Alltho I'm not > > whining, I knew what I was getting myself into when I installed 5.0, it > > would be nice get things solved, for FreeBSD's sake already. > > Did you by any chance build your own kernel? If so did you leave things > like this in: > > options INVARIANTS #Enable calls of extra sanity > options INVARIANT_SUPPORT #Extra sanity checks of internal > options WITNESS #Enable checks to detect deadlocks > options WITNESS_SKIPSPIN #Don't run witness on spinlocks I'd like to add that even with these removed, I was experiencing terrible performance in building ports, etc (anything involving heavy filesystem activity or memory usage). Setting up an /etc/malloc.conf fixed this (this is also briefly noted in UPDATING). Specifically I use (don't know whether it's optimal, but it works): # ls -l /etc/malloc.conf lrwxr-xr-x 1 root wheel 4 Jan 23 11:52 /etc/malloc.conf -> HR< I didn't need to do this in 4-STABLE, however. Given that this gives really vast performance improvement with 5-CURRENT (in my experience) should something like this be in -RELEASE too? - Rahul To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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