From owner-svn-src-all@FreeBSD.ORG Thu Aug 28 21:15:16 2014 Return-Path: Delivered-To: svn-src-all@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 B60CFFA0; Thu, 28 Aug 2014 21:15:16 +0000 (UTC) Received: from thyme.infocus-llc.com (thyme.infocus-llc.com [199.15.120.10]) (using TLSv1 with cipher DHE-RSA-CAMELLIA256-SHA (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 86B1C123D; Thu, 28 Aug 2014 21:15:16 +0000 (UTC) Received: from draco.over-yonder.net (c-75-65-60-66.hsd1.ms.comcast.net [75.65.60.66]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by thyme.infocus-llc.com (Postfix) with ESMTPSA id 200DA37B567; Thu, 28 Aug 2014 16:15:09 -0500 (CDT) Received: by draco.over-yonder.net (Postfix, from userid 100) id 3hkcCc4HfZz9r; Thu, 28 Aug 2014 16:15:08 -0500 (CDT) Date: Thu, 28 Aug 2014 16:15:08 -0500 From: "Matthew D. Fuller" To: Steven Hartland Subject: Re: svn commit: r270759 - in head/sys: cddl/compat/opensolaris/kern cddl/compat/opensolaris/sys cddl/contrib/opensolaris/uts/common/fs/zfs vm Message-ID: <20140828211508.GK46031@over-yonder.net> References: <201408281950.s7SJo90I047213@svn.freebsd.org> <899BF203A6C64F3D8C8902F371D9DA79@multiplay.co.uk> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <899BF203A6C64F3D8C8902F371D9DA79@multiplay.co.uk> X-Editor: vi X-OS: FreeBSD User-Agent: Mutt/1.5.23-fullermd.4 (2014-03-12) X-Virus-Scanned: clamav-milter 0.98.4 at thyme.infocus-llc.com X-Virus-Status: Clean Cc: svn-src-head@freebsd.org, svn-src-all@freebsd.org, src-committers@freebsd.org, Dmitry Morozovsky X-BeenThere: svn-src-all@freebsd.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: "SVN commit messages for the entire src tree \(except for " user" and " projects" \)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 28 Aug 2014 21:15:16 -0000 On Thu, Aug 28, 2014 at 10:11:39PM +0100 I heard the voice of Steven Hartland, and lo! it spake thus: > > Its very likely applicable to stable/9 although I've never used 9 > myself, we jumped from 9 direct to 10. This is actually hitting two different issues from the two bugs: - 191510 is about "ARC isn't greedy enough" on huge-memory machines, and from the osreldate that bug was filed on 9.2, so presumably is applicable. - 187594 is about "ARC is too greedy" (probably mostly on not-so-huge machines) and starves/drives the rest of the system into swap. That I believe came about as a result of some unrelated change in the 10.x stream that upset the previous balance between ARC and the rest of the VM, so isn't a problem on 9.x. -- Matthew Fuller (MF4839) | fullermd@over-yonder.net Systems/Network Administrator | http://www.over-yonder.net/~fullermd/ On the Internet, nobody can hear you scream.