Date: Thu, 1 Mar 2012 18:28:26 +0400 From: Slawa Olhovchenkov <slw@zxy.spb.ru> To: Peter Jeremy <peterjeremy@acm.org> Cc: freebsd-fs@freebsd.org, Luke Marsden <luke-lists@hybrid-logic.co.uk>, "freebsd-stable@freebsd.org" <freebsd-stable@freebsd.org>, team@hybrid-logic.co.uk Subject: Re: Another ZFS ARC memory question Message-ID: <20120301142826.GG97848@zxy.spb.ru> In-Reply-To: <20120227181436.GA49667@server.vk2pj.dyndns.org> References: <1330081612.13430.39.camel@pow> <20120227181436.GA49667@server.vk2pj.dyndns.org>
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On Tue, Feb 28, 2012 at 05:14:37AM +1100, Peter Jeremy wrote: > > * what is the community's advice for production machines running > > ZFS on FreeBSD, is manually limiting the ARC cache (to ensure > > that there's enough actually free memory to handle a spike in > > application memory usage) the best solution to this > > spike-in-memory-means-crash problem? > > Are you swapping onto a ZFS vdev? If so, change back to a raw (or > geom) device - swapping to ZFS is known to be problematic. If you I see kernel stuck when swapping to ZFS. This is only known problem?
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