From owner-freebsd-performance@FreeBSD.ORG Fri May 11 14:59:51 2007 Return-Path: X-Original-To: freebsd-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 D314616A402 for ; Fri, 11 May 2007 14:59:51 +0000 (UTC) (envelope-from lydianconcepts@gmail.com) Received: from wr-out-0506.google.com (wr-out-0506.google.com [64.233.184.227]) by mx1.freebsd.org (Postfix) with ESMTP id 9206913C448 for ; Fri, 11 May 2007 14:59:51 +0000 (UTC) (envelope-from lydianconcepts@gmail.com) Received: by wr-out-0506.google.com with SMTP id 70so985353wra for ; Fri, 11 May 2007 07:59:51 -0700 (PDT) DKIM-Signature: a=rsa-sha1; c=relaxed/relaxed; d=gmail.com; s=beta; h=domainkey-signature:received:received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=PfJ2HqQiQGziOtjo+HB6N9sKIgq7S8HJJZ46MhivfWNxltl7GR8imICiJtYVaZjg35uNqrTt8pbqsRwWrrLGoD1MGOcyNNkzstAWE8D6VBSnZyb7SsYAFQbBI7sl7YbY+Q/8Atv/8POkmRosUR8W4OMp2Gc9V8J/ycDaG96L3p0= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=PcBk99U/BQ0I+MNMTFdYPjh9cn8J3A546obN1mN3VKtZYvnbzPZu9eACBIzh1M7LanJv7ikNxOsvuul7GJ6QbQCWS4x5ukANdTKmgS1U8BrTPqviV1ExUmMAI6DbqhnUKuSq34i6m1AoDACTA0hgBFF0ZOKzBxrNY32Pi+FVOOI= Received: by 10.114.148.1 with SMTP id v1mr990404wad.1178894143966; Fri, 11 May 2007 07:35:43 -0700 (PDT) Received: by 10.114.25.18 with HTTP; Fri, 11 May 2007 07:35:43 -0700 (PDT) Message-ID: <7579f7fb0705110735h1a65ef7atcab00bdbc25224d6@mail.gmail.com> Date: Fri, 11 May 2007 10:35:43 -0400 From: "Matthew Jacob" To: "Tom Judge" In-Reply-To: <464474F0.3040306@tomjudge.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <464474F0.3040306@tomjudge.com> X-Mailman-Approved-At: Fri, 11 May 2007 15:11:57 +0000 Cc: freebsd-performance@freebsd.org, Randy Schultz Subject: Re: possible issues with Dell/Perc5 raid 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, 11 May 2007 14:59:51 -0000 Time frame to resolution involves getting a machine into my lab that evidences the poor performance and the time to sort out what the problem is and fix it. Remote access doesn't work for me on this one (contact me offline as to why). On 5/11/07, Tom Judge wrote: > Randy Schultz wrote: > > Hi there, > > > > We just purchased a Dell 860 with these specifics: > > - dual core pentium 915, 2.8 GHz, 800MHz FSB > > - 2x512 MB 533 MHz DDR2 RAM > > - Dell's SAS/SATA drive controller(which is actually an LSILogic) > > - their 5IR PCI-Express internal RAID controller > > - a pair of 250 GB SATA II's set up RAID 1 > > > > After installing 6.2-RELEASE on the system I noticed, while pulling the > > ports > > collection off the CDROM, that the speed to the drives started out just > > fine > > but long before the ports collection was installed the transfer rate was > > down > > to ~35kB/s. Huh. So I started paying closer attention. I installed a > > couple > > of ports and every time there was anything but miniscule data being > > transferred to/from disk the transfer rate bottomed out. I installed the > > blogbench port and it confirmed the I/O as tremendously sluggish. I've > > attached the output of the blogbench runs. The first is from an old 700 > > MHz > > pc, Acer M25C mobo, with 1 IDE drive just for comparison. The second > > data set > > is the new Dell. I've also attached the output of dmesg. Everything looks > > fine except for the mpt lines. Would those be telling of something > > amiss or > > are they innocuous barks? > > > > I understand that RAID 1 is not the fastest but I certainly expected it > > to be > > faster than it is, esp. with hw RAID. Are my expectations too high and > > this > > is normal? > > > > -- > > From the boot messages you have included below it seems that you have a > Dell SAS-5i (Internal PCIe) controller and not a Perc/5[ie]. > > The SAS-5 known to have very poor performance (1Mb/s 100%busy) under > certain loads (cvsup). > > I have CC'd the author of the mpt driver (Matthew Jacob) as he may be > able to shed more light on the problem and time frame to resolution. > > Tom > > > > > Copyright (c) 1992-2007 The FreeBSD Project. > > Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994 > > The Regents of the University of California. All rights reserved. > > FreeBSD is a registered trademark of The FreeBSD Foundation. > > FreeBSD 6.2-STABLE #0: Mon May 7 20:16:35 EDT 2007 > > root@maxu.earlham.edu:/usr/obj/usr/src/sys/maxu.070507 > > Timecounter "i8254" frequency 1193182 Hz quality 0 > > CPU: Intel(R) Pentium(R) D CPU 2.80GHz (2800.11-MHz 686-class CPU) > > Origin = "GenuineIntel" Id = 0xf64 Stepping = 4 > > Features=0xbfebfbff > ,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE> > > Features2=0xe49d,> > > AMD Features=0x20100000 > > AMD Features2=0x1 > > Cores per package: 2 > > real memory = 1073479680 (1023 MB) > > avail memory = 1041326080 (993 MB) > > ACPI APIC Table: > > FreeBSD/SMP: Multiprocessor System Detected: 2 CPUs > > cpu0 (BSP): APIC ID: 0 > > cpu1 (AP): APIC ID: 1 > > > mpt0: port 0xec00-0xecff mem 0xfeafc000-0xfeafffff,0xfeae0000-0xf > > eaeffff irq 16 at device 8.0 on pci2 > > mpt0: [GIANT-LOCKED] > > mpt0: MPI Version=1.5.13.0 > > mpt0: mpt_cam_event: 0x16 > > mpt0: Unhandled Event Notify Frame. Event 0x16 (ACK not required). > > mpt0: mpt_cam_event: 0x12 > > mpt0: Unhandled Event Notify Frame. Event 0x12 (ACK not required). > > mpt0: mpt_cam_event: 0x12 > > mpt0: Unhandled Event Notify Frame. Event 0x12 (ACK not required). > > mpt0: mpt_cam_event: 0x16 > > mpt0: Unhandled Event Notify Frame. Event 0x16 (ACK not required). > > > da0 at mpt0 bus 0 target 0 lun 0 > > da0: Fixed Direct Access SCSI-5 device > > da0: 300.000MB/s transfers, Tagged Queueing Enabled > > da0: 237464MB (486326272 512 byte sectors: 255H 63S/T 30272C) >