Date: Wed, 10 Nov 2004 14:27:54 -0700 From: Scott Long <scottl@freebsd.org> To: Joe Marcus Clarke <marcus@freebsd.org> Cc: current@freebsd.org Subject: Re: 6-CURRENT unbelievably slow? Message-ID: <419287DA.7030205@freebsd.org> In-Reply-To: <1100120495.36242.15.camel@shumai.marcuscom.com> References: <1100120495.36242.15.camel@shumai.marcuscom.com>
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Joe Marcus Clarke wrote: > I've been using -CURRENT for a long time now (from early 5.X up to 6.X), > and even with WITNESS and INVARIANTS things didn't seem this slow. I > have a P4 2.4 GHz machine with 2 GB of RAM running a very recent > 6-CURRENT: > > FreeBSD fugu.marcuscom.com 6.0-CURRENT FreeBSD 6.0-CURRENT #11: Wed Nov > 10 01:03:33 EST 2004 > gnome@fugu.marcuscom.com:/space2/obj/usr/src/sys/FUGU i386 > > (The version prior to this from October 14 was fine), and it takes > around _8 hours_ to do a make world (this is my GNOME Tinderbox > machine). The disk on which the build is taking place is an SATA-150 > drive, and the system drive is a U320 SCSI disk on an mpt controller. > There is nothing else happening on this system while it builds, and the > build is happening normally (i.e. not through NFS, nullfs, etc.). > > Attached are my dmesg and my kernel config. Nothing has changed > configuration or hardware wise between when performance was good > (October 14 build) and now (November 10 build). I have userland malloc > debugging disabled with /etc/malloc.conf -> ajH. > > Any help would be most appreciated since I'd like to kick out a new > batch of GNOME packages. Thanks. > Nothing has happened recently that I would suspect. The only reasonable idea I can come up with is the recent HZ change. Can you try backing that down to 100? Scott
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