From owner-freebsd-performance@FreeBSD.ORG Thu Feb 19 07:44:08 2004 Return-Path: Delivered-To: freebsd-performance@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 2CDFD16A4D2 for ; Thu, 19 Feb 2004 07:44:08 -0800 (PST) Received: from relay.pair.com (relay.pair.com [209.68.1.20]) by mx1.FreeBSD.org (Postfix) with SMTP id C041543D1F for ; Thu, 19 Feb 2004 07:44:07 -0800 (PST) (envelope-from silby@silby.com) Received: (qmail 87090 invoked from network); 19 Feb 2004 15:44:06 -0000 Received: from niwun.pair.com (HELO localhost) (209.68.2.70) by relay.pair.com with SMTP; 19 Feb 2004 15:44:06 -0000 X-pair-Authenticated: 209.68.2.70 Date: Thu, 19 Feb 2004 09:44:05 -0600 (CST) From: Mike Silbersack To: Mike Tancsa In-Reply-To: <6.0.3.0.0.20040219103403.0919ba80@209.112.4.2> Message-ID: <20040219094054.X28073@odysseus.silby.com> References: <20040219005922.X28073@odysseus.silby.com> <6.0.3.0.0.20040219103403.0919ba80@209.112.4.2> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII cc: freebsd-performance@freebsd.org Subject: Re: Tuning for large outbound smtp queues X-BeenThere: freebsd-performance@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Performance/tuning List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 19 Feb 2004 15:44:08 -0000 On Thu, 19 Feb 2004, Mike Tancsa wrote: > Actually, do you still need to newfs the partition afterwards to take > advantage of UFS_DIRHASH ? I seem to recall a long time ago this was the > case. > > ---Mike Nope, UFS_DIRHASH is just another layer of caching the kernel does, nothing more. You're thinking of when the new dirpref code went into the kernel, which changed where new directories were located on the disk. In order to take full advantage of that change, you would have to start from scratch. (That would not be necessary if the disk was mostly empty, however.) Mike "Silby" Silbersack