From owner-freebsd-hackers Thu Dec 7 12: 9:47 2000 From owner-freebsd-hackers@FreeBSD.ORG Thu Dec 7 12:09:44 2000 Return-Path: Delivered-To: freebsd-hackers@freebsd.org Received: from rover.village.org (rover.village.org [204.144.255.66]) by hub.freebsd.org (Postfix) with ESMTP id 88F5A37B400 for ; Thu, 7 Dec 2000 12:09:43 -0800 (PST) Received: from harmony.village.org (harmony.village.org [10.0.0.6]) by rover.village.org (8.11.0/8.11.0) with ESMTP id eB7K9fs45012; Thu, 7 Dec 2000 13:09:41 -0700 (MST) (envelope-from imp@harmony.village.org) Received: from harmony.village.org (localhost.village.org [127.0.0.1]) by harmony.village.org (8.9.3/8.8.3) with ESMTP id NAA06489; Thu, 7 Dec 2000 13:09:32 -0700 (MST) Message-Id: <200012072009.NAA06489@harmony.village.org> To: Matt Dillon Subject: Re: Optimal UFS parameters Cc: Poul-Henning Kamp , A G F Keahan , freebsd-hackers@FreeBSD.ORG In-reply-to: Your message of "Thu, 07 Dec 2000 00:21:40 PST." <200012070821.eB78LeQ07926@earth.backplane.com> References: <200012070821.eB78LeQ07926@earth.backplane.com> <58936.976176750@critter> Date: Thu, 07 Dec 2000 13:09:32 -0700 From: Warner Losh Sender: imp@harmony.village.org Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG In message <200012070821.eB78LeQ07926@earth.backplane.com> Matt Dillon writes: : : -b 16384 -f 4096 -c 159 : I think Bruce swears by 4K (page-sized) fragments. Not a bad : way to go. I use 2K because I (and others) put in so much hard work : to fix all the little niggling bugs in the VM system related to partial : page validation and, damn it, I intend to use those features! At the other end of the spectrum, 32M [sic] and 64M [sic] disks work well with -b 4096 -f 512 -c 10 But I tend to do what phk has done with the large -c flags on my insanely-sized, rediculously-cheap XXG IDE drives. Warner To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message