From owner-freebsd-current@FreeBSD.ORG Sat Jul 17 21:47:45 2004 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 7B86C16A4CE for ; Sat, 17 Jul 2004 21:47:45 +0000 (GMT) Received: from sakura.ninth-nine.com (sakura.ninth-nine.com [219.127.74.120]) by mx1.FreeBSD.org (Postfix) with ESMTP id 0F01543D2D for ; Sat, 17 Jul 2004 21:47:45 +0000 (GMT) (envelope-from nork@FreeBSD.org) Received: from pelsia.ninth-nine.com (d35.GkanagawaFL20.vectant.ne.jp [163.139.20.35]) (authenticated bits=0) by sakura.ninth-nine.com (8.12.11/8.12.11/NinthNine) with ESMTP id i6HLlbPL035974; Sun, 18 Jul 2004 06:47:37 +0900 (JST) (envelope-from nork@FreeBSD.org) Date: Sun, 18 Jul 2004 06:47:37 +0900 (JST) Message-Id: <200407172147.i6HLlbPL035974@sakura.ninth-nine.com> From: Norikatsu Shigemura To: Alex Vasylenko In-Reply-To: <20040717195929.GA26144@tadpole.intranet> References: <40F835D0.8070609@elischer.org> <20040717195929.GA26144@tadpole.intranet> X-Mailer: Sylpheed version 0.9.12-gtk2-20040622 (GTK+ 2.4.4; i386-portbld-freebsd5.2) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Greylist: Sender succeded SMTP AUTH authentication, not delayed by milter-greylist-1.5.3 (sakura.ninth-nine.com [219.127.74.120]); Sun, 18 Jul 2004 06:47:38 +0900 (JST) cc: freebsd-current@FreeBSD.org cc: julian@elischer.org Subject: Re: Call for PRs: nullfs X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 17 Jul 2004 21:47:45 -0000 On Sat, 17 Jul 2004 15:59:31 -0400 Alex Vasylenko wrote: > I find the performance of nullfs somewhat lacking as measured in the test > described below (a config with nullfs performs worse (~2x slower) than the same > config with vnodefs). For simplicity the test was done in chroot, doing it in a > jail has no significant impact on performance. Wow, I confirmed this behavior with 'make buildworld' on 5-current(2004/7/2, SMP). nullfs mounted /usr/src, /usr/obj: about 5000sec ln -s'ed /usr/src, /usr/obj: about 3000sec