From owner-freebsd-current Thu Jan 23 10:57: 0 2003 Delivered-To: freebsd-current@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 08F0837B401 for ; Thu, 23 Jan 2003 10:56:59 -0800 (PST) Received: from dan.emsphone.com (dan.emsphone.com [199.67.51.101]) by mx1.FreeBSD.org (Postfix) with ESMTP id 64C4543F65 for ; Thu, 23 Jan 2003 10:56:58 -0800 (PST) (envelope-from dan@dan.emsphone.com) Received: (from dan@localhost) by dan.emsphone.com (8.12.6/8.12.6) id h0NIuvvT060212; Thu, 23 Jan 2003 12:56:57 -0600 (CST) (envelope-from dan) Date: Thu, 23 Jan 2003 12:56:57 -0600 From: Dan Nelson To: Rahul Siddharthan Cc: Kenneth Culver , Atte Peltomaki , freebsd-current@FreeBSD.ORG Subject: Re: Performance problems with 5.0-RELEASE Message-ID: <20030123185657.GB54656@dan.emsphone.com> References: <20030123123522.C9068-100000@alpha.yumyumyum.org> <20030123181628.GA2185@papagena.rockefeller.edu> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20030123181628.GA2185@papagena.rockefeller.edu> X-OS: FreeBSD 5.0-CURRENT X-message-flag: Outlook Error User-Agent: Mutt/1.5.3i Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG In the last episode (Jan 23), Rahul Siddharthan said: > Kenneth Culver wrote: > > 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< 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.*. -- Dan Nelson dnelson@allantgroup.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message