From owner-freebsd-performance@FreeBSD.ORG Fri Dec 22 06:52:21 2006 Return-Path: X-Original-To: performance@freebsd.org Delivered-To: freebsd-performance@FreeBSD.ORG Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 9377716A40F for ; Fri, 22 Dec 2006 06:52:21 +0000 (UTC) (envelope-from mikej@rogers.com) Received: from smtp103.rog.mail.re2.yahoo.com (smtp103.rog.mail.re2.yahoo.com [206.190.36.81]) by mx1.freebsd.org (Postfix) with SMTP id 560FE13C428 for ; Fri, 22 Dec 2006 06:52:21 +0000 (UTC) (envelope-from mikej@rogers.com) Received: (qmail 16986 invoked from network); 22 Dec 2006 06:25:40 -0000 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=rogers.com; h=Received:X-YMail-OSG:Message-ID:Date:From:User-Agent:MIME-Version:To:Subject:References:In-Reply-To:Content-Type:Content-Transfer-Encoding; b=mIMfsNWL2ByrIhBd2jYUl0qOITBD8b6wRSk2ITPm++a41iOICYc2mY1+I39VLR5HxVuD27IbyrEBgNj+6rxQbX+npqRlNODeerTCsgUbYVR3P5IBAEwTjzv2D/j4bI+MR2TJeZIUcl7Y9Xdbawx1Tq1Re7thefQxR/F/Mb6gTtA= ; Received: from unknown (HELO ?172.16.0.200?) (mikej@rogers.com@74.111.253.239 with plain) by smtp103.rog.mail.re2.yahoo.com with SMTP; 22 Dec 2006 06:25:40 -0000 X-YMail-OSG: psLcbC0VM1nS9tg49t_5kWL6MW1GOe1W_wPT3BgU6SriCOoxRdve7ZP1tdn670BZffHvjQEgX2peJezkVxPjTdGrT88egSpln7tiVGLzJAlMxqQoONt..nveiiC1hETgnN7ukLU37PY9KsA- Message-ID: <458B7A86.5060908@rogers.com> Date: Fri, 22 Dec 2006 01:26:14 -0500 From: Mike Jakubik User-Agent: Thunderbird 1.5.0.9 (Windows/20061207) MIME-Version: 1.0 To: performance@freebsd.org References: <45888C68.10305@paradise.net.nz> <200612200816.51043.joao@matik.com.br> <4589128F.9030404@paradise.net.nz> <200612201536.25497.pieter@degoeje.nl> <458A606E.6080008@paradise.net.nz> <20061221184535.GF41566@turion.vk2pj.dyndns.org> In-Reply-To: <20061221184535.GF41566@turion.vk2pj.dyndns.org> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: Subject: Re: Cached file read performance with 6.2-PRERELEASE X-BeenThere: freebsd-performance@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Performance/tuning List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 22 Dec 2006 06:52:21 -0000 Has anyone tried these tests with 4.x? Well, i did, and i was surprised how good the performance is, it gave me the highest number of all tests, even compared to much faster HW. Although this is all different hardware, it seems like the performance drops the higher the version of FreeBSD is, specifically right after 6.1. Is there a possibility that there was some performance problem introduced around that time? All tests done with "dd if=/dev/zero of=/tmp/file bs=8k count=30000", a 234M file. --- FreeBSD 4.11-STABLE, Pentium(R) 4 CPU 2.60GHz, 512MB # dd of=/dev/null if=/tmp/file bs=8k 30000+0 records in 30000+0 records out 245760000 bytes transferred in 0.298992 secs (821962015 bytes/sec) # dd of=/dev/null if=/tmp/file bs=32k 7500+0 records in 7500+0 records out 245760000 bytes transferred in 0.221009 secs (1111990834 bytes/sec) FreeBSD 6.1-STABLE, Dual Core AMD Opteron(tm) Processor 170 (2009.27-MHz K8-class CPU), 1GB # dd of=/dev/null if=/tmp/file bs=8k 30000+0 records in 30000+0 records out 245760000 bytes transferred in 0.289550 secs (848765132 bytes/sec) # dd of=/dev/null if=/tmp/file bs=32k 7500+0 records in 7500+0 records out 245760000 bytes transferred in 0.243281 secs (1010190329 bytes/sec) FreeBSD 6.1-STABLE, Intel(R) Pentium(R) D CPU 3.20GHz (3118.91-MHz 686-class CPU), 1GB # dd of=/dev/null if=/tmp/file bs=8k 30000+0 records in 30000+0 records out 245760000 bytes transferred in 0.354899 secs (692478377 bytes/sec) # dd of=/dev/null if=/tmp/file bs=32k 7500+0 records in 7500+0 records out 245760000 bytes transferred in 0.285909 secs (859574388 bytes/sec) FreeBSD 6.2-PRERELEASE, AMD Athlon(tm) 64 Processor 3000+ (2002.58-MHz K8-class CPU), 512MB # dd of=/dev/null if=/tmp/file bs=8k 30000+0 records in 30000+0 records out 245760000 bytes transferred in 0.354382 secs (693488872 bytes/sec) # dd of=/dev/null if=/tmp/file bs=32k 7500+0 records in 7500+0 records out 245760000 bytes transferred in 0.356816 secs (688758249 bytes/sec) FreeBSD 6.2-PRERELEASE, Intel(R) Pentium(R) 4 CPU 1.80GHz (1796.94-MHz 686-class CPU), 512MB # dd of=/dev/null if=/tmp/file bs=8k 30000+0 records in 30000+0 records out 245760000 bytes transferred in 0.483906 secs (507867448 bytes/sec) # dd of=/dev/null if=/tmp/file bs=32k 7500+0 records in 7500+0 records out 245760000 bytes transferred in 0.390824 secs (628825123 bytes/sec) FreeBSD 7.0-CURRENT (all debugging off), AMD Athlon(tm) Processor (1410.21-MHz 686-class CPU), 512MB # dd of=/dev/null if=/tmp/file bs=8k 30000+0 records in 30000+0 records out 245760000 bytes transferred in 0.846895 secs (290189464 bytes/sec) # dd of=/dev/null if=/tmp/file bs=32k 7500+0 records in 7500+0 records out 245760000 bytes transferred in 0.794950 secs (309151516 bytes/sec)