From owner-svn-src-all@FreeBSD.ORG Mon Oct 25 14:05:25 2010 Return-Path: Delivered-To: svn-src-all@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 588D71065674; Mon, 25 Oct 2010 14:05:25 +0000 (UTC) (envelope-from ivoras@FreeBSD.org) Received: from svn.freebsd.org (svn.freebsd.org [IPv6:2001:4f8:fff6::2c]) by mx1.freebsd.org (Postfix) with ESMTP id 4711D8FC15; Mon, 25 Oct 2010 14:05:25 +0000 (UTC) Received: from svn.freebsd.org (localhost [127.0.0.1]) by svn.freebsd.org (8.14.3/8.14.3) with ESMTP id o9PE5P8R067538; Mon, 25 Oct 2010 14:05:25 GMT (envelope-from ivoras@svn.freebsd.org) Received: (from ivoras@localhost) by svn.freebsd.org (8.14.3/8.14.3/Submit) id o9PE5PRm067536; Mon, 25 Oct 2010 14:05:25 GMT (envelope-from ivoras@svn.freebsd.org) Message-Id: <201010251405.o9PE5PRm067536@svn.freebsd.org> From: Ivan Voras Date: Mon, 25 Oct 2010 14:05:25 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org X-SVN-Group: head MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Cc: Subject: svn commit: r214342 - head/sys/kern X-BeenThere: svn-src-all@freebsd.org X-Mailman-Version: 2.1.5 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: Mon, 25 Oct 2010 14:05:25 -0000 Author: ivoras Date: Mon Oct 25 14:05:25 2010 New Revision: 214342 URL: http://svn.freebsd.org/changeset/base/214342 Log: Reduce the difference between hirunningspace and lorunningspace, it should help interactivity in edge cases. Modified: head/sys/kern/vfs_bio.c Modified: head/sys/kern/vfs_bio.c ============================================================================== --- head/sys/kern/vfs_bio.c Mon Oct 25 14:04:21 2010 (r214341) +++ head/sys/kern/vfs_bio.c Mon Oct 25 14:05:25 2010 (r214342) @@ -623,16 +623,16 @@ bufinit(void) lobufspace = hibufspace - MAXBSIZE; /* - * Note: The 16 MB upper limit for hirunningspace was chosen + * Note: The 16 MiB upper limit for hirunningspace was chosen * arbitrarily and may need further tuning. It corresponds to * 128 outstanding write IO requests (if IO size is 128 KiB), * which fits with many RAID controllers' tagged queuing limits. - * The lower 1 MB limit is the historical upper limit for + * The lower 1 MiB limit is the historical upper limit for * hirunningspace. */ hirunningspace = lmax(lmin(roundup(hibufspace / 64, MAXBSIZE), 16 * 1024 * 1024), 1024 * 1024); - lorunningspace = roundup(hirunningspace / 2, MAXBSIZE); + lorunningspace = roundup((hirunningspace * 2) / 3, MAXBSIZE); /* * Limit the amount of malloc memory since it is wired permanently into