Date: Tue, 13 Jan 2015 11:35:05 -0400 From: Joseph Mingrone <jrm@ftfl.ca> To: freebsd-fs@freebsd.org Subject: Re: memory exhaustion on 10.1 AMD64 ZFS storage system Message-ID: <868uh6vgly.fsf@gly.ftfl.ca> References: <20150112211148.15c1fe3c@kerio.tuxis.nl> <520c2cb181266d1f28d00dbf7929d591@mailbox.ijs.si>
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Mark Martinec <Mark.Martinec+freebsd@ijs.si> writes: > Aggressiveness of ARC in 10.0 hurt us pretty badly when switching from > 9.2 to 10.0. The ARC / UMA greediness for memory was causing excessive > swapping out of still active processes, while keeping ARC luxuriously > bathing in memory. The situation in 10.1 may have been slightly improved, > although it seems the fix still has not been committed: > > Bug 187594 - [zfs] [patch] ZFS ARC behavior problem and fix > https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=187594 > > I'd really like to see a solution committed in time for 10.2. I've set vfs.zfs.arc_max=24G. That leaves 8 GB for everything else. Hopefully that helps. Thanks, Joseph
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