From owner-cvs-src@FreeBSD.ORG Thu Dec 29 15:08:20 2005 Return-Path: X-Original-To: cvs-src@FreeBSD.org Delivered-To: cvs-src@FreeBSD.org Received: from green.homeunix.org (freefall.freebsd.org [216.136.204.21]) by hub.freebsd.org (Postfix) with ESMTP id 8461716A41F; Thu, 29 Dec 2005 15:08:20 +0000 (GMT) (envelope-from green@green.homeunix.org) Received: from green.homeunix.org (green@localhost [127.0.0.1]) by green.homeunix.org (8.13.4/8.13.1) with ESMTP id jBTF8JaA085212; Thu, 29 Dec 2005 10:08:20 -0500 (EST) (envelope-from green@green.homeunix.org) Received: (from green@localhost) by green.homeunix.org (8.13.4/8.13.1/Submit) id jBTF8Jkb085211; Thu, 29 Dec 2005 10:08:19 -0500 (EST) (envelope-from green) Date: Thu, 29 Dec 2005 10:08:19 -0500 From: Brian Fundakowski Feldman To: Diomidis Spinellis Message-ID: <20051229150819.GA27794@green.homeunix.org> References: <200512261347.jBQDlKUB022385@repoman.freebsd.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <200512261347.jBQDlKUB022385@repoman.freebsd.org> User-Agent: Mutt/1.5.11 Cc: cvs-src@FreeBSD.org, src-committers@FreeBSD.org, cvs-all@FreeBSD.org Subject: Re: cvs commit: src/sys/kern kern_exec.c vfs_subr.c src/sys/sys vnode.h src/sys/ufs/ufs ufs_vnops.c src/sys/vm vm_mmap.c X-BeenThere: cvs-src@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: CVS commit messages for the src tree List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 29 Dec 2005 15:08:21 -0000 On Mon, Dec 26, 2005 at 01:47:20PM +0000, Diomidis Spinellis wrote: > dds 2005-12-26 13:47:20 UTC > > FreeBSD src repository > > Modified files: (Branch: RELENG_6) > sys/kern kern_exec.c vfs_subr.c > sys/sys vnode.h > sys/ufs/ufs ufs_vnops.c > sys/vm vm_mmap.c > Log: > MFC changes from 2005.10.26: > Move execve's access time update functionality into a > new vfs_mark_atime() function, and use the new function > for performing efficient atime updates in mmap(). Do you have any particular use cases that are improved a lot by (seemingly) reducing gratuitous seeks for R/W file mappings? Substantial improvement for the general case of not-noatime? -- Brian Fundakowski Feldman \'[ FreeBSD ]''''''''''\ <> green@FreeBSD.org \ The Power to Serve! \ Opinions expressed are my own. \,,,,,,,,,,,,,,,,,,,,,,\