Date: Thu, 29 Apr 2010 16:53:35 +0200 From: Ollivier Robert <roberto@keltia.freenix.fr> To: freebsd-current@freebsd.org Subject: Re: kmem_map too small: 3832475648 total allocated Message-ID: <20100429145334.GB62822@roberto-al.eurocontrol.fr> In-Reply-To: <4BD8F7FA.2080103@jrv.org> References: <4BD8F7FA.2080103@jrv.org>
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According to James R. Van Artsdalen: > system is a Core i7 975 (3.33 GHz x 4 cores 3x threads per core) with 12 > GB of RAM, a 2x2TB ZFS boot pool and a second (idle) pool of 16x2TB. > panic: kmem_malloc(131072): kmem_map too small: 3832475648 total allocated Apart from the fact that you must at least set vm.kmem_size to something like 2x your RAM, one rule of thumb I've seen discussed for ZFS is that you will need approximatively 1 GB of RAM per TB of data so you may be a bit short here to get optimal perfs. -- Ollivier ROBERT -=- FreeBSD: The Power to Serve! -=- roberto@keltia.freenix.fr In memoriam to Ondine : http://ondine.keltia.net/
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