Date: Tue, 17 Apr 2007 09:58:45 +0200 From: Gary Jennejohn <garyj@jennejohn.org> To: Thomas Sparrevohn <Thomas.Sparrevohn@btinternet.com> Cc: freebsd-current@freebsd.org Subject: Re: Some comments on ZFS Message-ID: <200704170758.l3H7wjUQ002114@peedub.jennejohn.org> In-Reply-To: Message from Thomas Sparrevohn <Thomas.Sparrevohn@btinternet.com> of "Mon, 16 Apr 2007 20:21:51 BST." <200704162021.51678.Thomas.Sparrevohn@btinternet.com>
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Thomas Sparrevohn writes: > On Monday 16 April 2007 20:05:55 Joerg t wrote: > > > > > I'm also seeing a very odd behavior regarding memory consumption, > > with src and obj under zfs (different filesystems, same pool, compression > > off) the system begin to wire all memory and swap tops 1GB. Maybe there's > > something trashing memory on zfs ? > > > > There is something weird - Just ran same test again to see whether it > was a fluke - it still take 1h12 - however I saw the oppersite of Joerg. > The "systat -vm" Freemem was permently on 2,2GB - this on a 4GB > system that normally shows a 1,2GB - or less after a buildworld. > > hmm. Pawel are there tests that can help? > After switching from SCHED_ULE to SCHED_4BSD my ``make -j2 buildworld'' completes in about 19 minutes. This is pretty much the same as before the switch to ZFS. I have lots of stuff turned off in make.conf so YMMV. --- Gary Jennejohn / garyjATjennejohnDOTorg gjATfreebsdDOTorg garyjATdenxDOTde
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