From owner-freebsd-fs@FreeBSD.ORG Wed Jan 29 07:16:37 2014 Return-Path: Delivered-To: freebsd-fs@FreeBSD.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 49785BF2; Wed, 29 Jan 2014 07:16:37 +0000 (UTC) Received: from people.fsn.hu (people.fsn.hu [195.228.252.137]) (using TLSv1 with cipher ADH-CAMELLIA256-SHA (256/256 bits)) (No client certificate requested) by mx1.freebsd.org (Postfix) with ESMTPS id 8F332188E; Wed, 29 Jan 2014 07:16:36 +0000 (UTC) Received: by people.fsn.hu (Postfix, from userid 1001) id 896151296176; Wed, 29 Jan 2014 08:16:26 +0100 (CET) X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.3 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MF-ACE0E1EA [pR: 9.7157] X-CRM114-CacheID: sfid-20140129_08162_030B1191 X-CRM114-Status: Good ( pR: 9.7157 ) X-DSPAM-Result: Whitelisted X-DSPAM-Processed: Wed Jan 29 08:16:26 2014 X-DSPAM-Confidence: 0.9954 X-DSPAM-Probability: 0.0000 X-DSPAM-Signature: 52e8aaca161916006519569 X-DSPAM-Factors: 27, and+>, 0.00155, wrote+>, 0.00186, >>+>, 0.00264, From*"Nagy, Attila" , 0.00264, >+>, 0.00319, >>>+>>>, 0.00330, References*gmail.com>, 0.00340, >>+>>, 0.00364, >>+>>, 0.00364, grep, 0.00406, wrote+>>>, 0.00439, noticed+that, 0.00439, Subject*ZFS, 0.00479, References*FreeBSD.org>, 0.00479, To*FreeBSD.org>, 0.00479, wrote, 0.00514, wrote, 0.00514, Cache, 0.00527, Cache, 0.00527, References*fsn.hu>, 0.00554, sysctl, 0.00585, sysctl, 0.00585, Nagy+Attila, 0.00585, Received*online.co.hu+[195.228.243.99]), 0.00657, >+on, 0.00657, Received*[195.228.243.99]), 0.00657, X-Spambayes-Classification: ham; 0.00 Received: from japan.t-online.private (japan.t-online.co.hu [195.228.243.99]) by people.fsn.hu (Postfix) with ESMTPSA id 9B2831296165; Wed, 29 Jan 2014 08:16:23 +0100 (CET) Message-ID: <52E8AAC3.3040300@fsn.hu> Date: Wed, 29 Jan 2014 08:16:19 +0100 From: "Nagy, Attila" MIME-Version: 1.0 To: Andriy Gapon , Volodymyr Kostyrko , freebsd-fs@FreeBSD.org Subject: Re: Lot more swapping in stable/10 with ZFS References: <52E4DE17.3000206@fsn.hu> <52E7CEB8.7010906@gmail.com> <52E7DBC9.6000708@FreeBSD.org> In-Reply-To: <52E7DBC9.6000708@FreeBSD.org> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.17 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 29 Jan 2014 07:16:37 -0000 On 01/28/14 17:33, Andriy Gapon wrote: > on 28/01/2014 17:37 Volodymyr Kostyrko said the following: >> 26.01.2014 12:06, Nagy, Attila wrote: >>> Hi, >>> >>> Running stable/10@r261157 (and earlier too), I've noticed that it swaps >>> much more than previous (stable/9) versions. >>> Current top output from such a machine: >>> Mem: 251M Active, 21M Inact, 7491M Wired, 118M Cache, 17M Buf, 51M Free >>> ARC: 5112M Total, 1455M MFU, 2155M MRU, 7761K Anon, 293M Header, 1223M >>> Other >>> Swap: 2045M Total, 757M Used, 1287M Free, 37% Inuse, 1280K Out >> Just a +1 from me: >> >> Mem: 1440M Active, 412M Inact, 5889M Wired, 82M Cache, 90M Free >> ARC: 3990M Total, 1981M MFU, 1505M MRU, 533K Anon, 79M Header, 424M Other >> Swap: 8192M Total, 1434M Used, 6758M Free, 17% Inuse >> >> This machine is up for 1+03:13:06 >> > Guys, > > could you please set sysctl vm.lowmem_period to zero (after a fresh reboot) and > see if it makes any difference? > # sysctl -a | grep lowmem_period vm.lowmem_period: 0 (set from sysctl.conf) # uptime 8:15AM up 1:05, 1 user, load averages: 0.25, 0.29, 0.30 Mem: 468M Active, 127M Inact, 7168M Wired, 54M Cache, 16M Buf, 115M Free ARC: 5835M Total, 4364M MFU, 789M MRU, 16K Anon, 150M Header, 536M Other Swap: 2045M Total, 62M Used, 1983M Free, 3% Inuse, 1816K Out So not really.