From owner-freebsd-bugs@freebsd.org Wed Jul 18 18:24:29 2018 Return-Path: Delivered-To: freebsd-bugs@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 14A9F102CE91 for ; Wed, 18 Jul 2018 18:24:29 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mailman.ysv.freebsd.org (mailman.ysv.freebsd.org [IPv6:2001:1900:2254:206a::50:5]) by mx1.freebsd.org (Postfix) with ESMTP id A226086AB9 for ; Wed, 18 Jul 2018 18:24:28 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: by mailman.ysv.freebsd.org (Postfix) id 58A8F102CE90; Wed, 18 Jul 2018 18:24:28 +0000 (UTC) Delivered-To: bugs@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 46433102CE8F for ; Wed, 18 Jul 2018 18:24:28 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mxrelay.ysv.freebsd.org (mxrelay.ysv.freebsd.org [IPv6:2001:1900:2254:206a::19:3]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "mxrelay.ysv.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id D23BE86AB5 for ; Wed, 18 Jul 2018 18:24:27 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org (kenobi.freebsd.org [IPv6:2001:1900:2254:206a::16:76]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mxrelay.ysv.freebsd.org (Postfix) with ESMTPS id 1D700E387 for ; Wed, 18 Jul 2018 18:24:27 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org ([127.0.1.118]) by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id w6IIOQVB010347 for ; Wed, 18 Jul 2018 18:24:26 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id w6IIOQKd010346 for bugs@FreeBSD.org; Wed, 18 Jul 2018 18:24:26 GMT (envelope-from bugzilla-noreply@freebsd.org) X-Authentication-Warning: kenobi.freebsd.org: www set sender to bugzilla-noreply@freebsd.org using -f From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 229670] ZFS ARC limit vfs.zfs.arc_max from /boot/loader.conf is not respected Date: Wed, 18 Jul 2018 18:24:27 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: kern X-Bugzilla-Version: 11.2-RELEASE X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Many People X-Bugzilla-Who: leif@ofWilsonCreek.com X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: bugs@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: https://bugs.freebsd.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-BeenThere: freebsd-bugs@freebsd.org X-Mailman-Version: 2.1.27 Precedence: list List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 18 Jul 2018 18:24:29 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D229670 --- Comment #12 from Leif Pedersen --- Fixing maxvnodes seems to have sorted out the problem. Here's the top heade= r, in case it bears any more investigation. last pid: 8729; load averages: 0.16, 0.15, 0.10=20=20=20=20=20=20=20= =20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20 up 0+18:24:10 11:07:00 36 processes: 1 running, 35 sleeping 0.0 100 CPU: 8040% user, 0.0% nice, 0.0% system, 0.0% interrupt, 0.0% idle Mem: 796K Active, 27M Inact, 81M Laundry, 5631M Wired, 155M Free ARC: 2639M Total, 643M MFU, 317M MRU, 972K Anon, 16M Header, 1663M Other 195M Compressed, 765M Uncompressed, 3.92:1 Ratio Swap:=20 When I cut maxvnodes from 1048576 to 524288, the ARC Total dropped from 263= 9MB to 1455MB over about 30 seconds. Further reducing maxvnodes brought the Tot= al down below the configured arc_max. Thanks! --=20 You are receiving this mail because: You are the assignee for the bug.=