From owner-freebsd-stable@FreeBSD.ORG Mon Jul 25 10:15:47 2005 Return-Path: X-Original-To: freebsd-stable@freebsd.org Delivered-To: freebsd-stable@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id D85A416A421 for ; Mon, 25 Jul 2005 10:15:47 +0000 (GMT) (envelope-from markir@paradise.net.nz) Received: from linda-3.paradise.net.nz (bm-3a.paradise.net.nz [202.0.58.22]) by mx1.FreeBSD.org (Postfix) with ESMTP id 7BC3743D45 for ; Mon, 25 Jul 2005 10:15:46 +0000 (GMT) (envelope-from markir@paradise.net.nz) Received: from smtp-3.paradise.net.nz (smtp-3a.paradise.net.nz [202.0.32.196]) by linda-3.paradise.net.nz (Paradise.net.nz) with ESMTP id <0IK600DLTHU92W@linda-3.paradise.net.nz> for freebsd-stable@freebsd.org; Mon, 25 Jul 2005 22:15:45 +1200 (NZST) Received: from [192.168.1.11] (218-101-13-175.paradise.net.nz [218.101.13.175]) by smtp-3.paradise.net.nz (Postfix) with ESMTP id 41C8CAE50D; Mon, 25 Jul 2005 22:15:45 +1200 (NZST) Date: Mon, 25 Jul 2005 22:15:41 +1200 From: Mark Kirkwood In-reply-to: <3aaaa3a050724144831d5cff0@mail.gmail.com> To: Chris Message-id: <42E4BBCD.3060406@paradise.net.nz> MIME-version: 1.0 Content-type: text/plain; format=flowed; charset=ISO-8859-1 Content-transfer-encoding: 7bit X-Accept-Language: en-us, en User-Agent: Mozilla Thunderbird 1.0.2 (X11/20050511) References: <1dbad31505072105401c06bee6@mail.gmail.com> <42E099A0.3080101@paradise.net.nz> <3aaaa3a050724144831d5cff0@mail.gmail.com> Cc: freebsd-stable@freebsd.org Subject: Re: FreeBSD IO Performance (was Re: Quality of FreeBSD) X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 25 Jul 2005 10:15:48 -0000 Hmm - looks like I missed that thread, never mind - repeatability of findings is sound scientific principle :-) With respect to changing the default for vfs.read_max - makes sense to me, but it would be interesting to know if anyone has a system that performs *worse* with it set to 16. regards Mark Chris wrote: > Its been mentioned before and most experience the same as you by > setting it to 16 a dramatic improvement in the sequential read, I > currently run all my 5.x servers like this with no issues as a result. > I am curious if the default will ever be changed. >