From owner-freebsd-arch Fri Jul 7 8: 9:45 2000 Delivered-To: freebsd-arch@freebsd.org Received: from fw.wintelcom.net (ns1.wintelcom.net [209.1.153.20]) by hub.freebsd.org (Postfix) with ESMTP id 831E137BEE1 for ; Fri, 7 Jul 2000 08:09:40 -0700 (PDT) (envelope-from bright@fw.wintelcom.net) Received: (from bright@localhost) by fw.wintelcom.net (8.10.0/8.10.0) id e67F9YD14880; Fri, 7 Jul 2000 08:09:34 -0700 (PDT) Date: Fri, 7 Jul 2000 08:09:34 -0700 From: Alfred Perlstein To: Gregory Sutter Cc: Marius Bendiksen , freebsd-arch@FreeBSD.ORG Subject: Re: Alterations to vops Message-ID: <20000707080934.I25571@fw.wintelcom.net> References: <200007070143.SAA96248@apollo.backplane.com> <20000706184859.C25571@fw.wintelcom.net> <20000706223150.A24949@klapaucius.zer0.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2i In-Reply-To: <20000706223150.A24949@klapaucius.zer0.org>; from gsutter@zer0.org on Thu, Jul 06, 2000 at 10:31:50PM -0700 Sender: owner-freebsd-arch@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG * Gregory Sutter [000706 22:32] wrote: > On 2000-07-06 18:48 -0700, Alfred Perlstein wrote: > > > > just a note: > > sysctl -w vfs.vmiodirenable=1 > > helps a _lot_. > > Could you explain what this does? Don't say "use the source"; I > looked and still have no idea. :) Thanks. Directory blocks aren't malloc'd anymore, instead they are taken from the pagecache which gives a _lot_ more room to cache things. The only problem is that for the "average case" you waste nearly 3.5k per directory cached, so it's only really a win on systems with large amounts of ram. -Alfred To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-arch" in the body of the message