From owner-freebsd-current@FreeBSD.ORG Fri Jul 3 14:15:31 2009 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 879DD1065687; Fri, 3 Jul 2009 14:15:31 +0000 (UTC) (envelope-from mike@sentex.net) Received: from lava.sentex.ca (pyroxene.sentex.ca [199.212.134.18]) by mx1.freebsd.org (Postfix) with ESMTP id 4894F8FC15; Fri, 3 Jul 2009 14:15:31 +0000 (UTC) (envelope-from mike@sentex.net) Received: from mdt-xp.sentex.net (simeon.sentex.ca [192.168.43.27]) by lava.sentex.ca (8.14.3/8.14.3) with ESMTP id n63ED2jl016885; Fri, 3 Jul 2009 10:13:02 -0400 (EDT) (envelope-from mike@sentex.net) Message-Id: <200907031413.n63ED2jl016885@lava.sentex.ca> X-Mailer: QUALCOMM Windows Eudora Version 7.1.0.9 Date: Fri, 03 Jul 2009 10:15:26 -0400 To: Alexander Motin From: Mike Tancsa In-Reply-To: <4A4E0D51.3080904@FreeBSD.org> References: <4A4517BE.9040504@FreeBSD.org> <200906272303.n5RN3rTi070177@lava.sentex.ca> <4A471F44.7010108@FreeBSD.org> <200907021859.n62IxghN009931@lava.sentex.ca> <4A4D0B7E.8060503@FreeBSD.org> <200907022117.n62LHrvZ010791@lava.sentex.ca> <200907031326.n63DQCGM016627@lava.sentex.ca> <4A4E0D51.3080904@FreeBSD.org> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii"; format=flowed Cc: FreeBSD-Current , scottl@freebsd.org Subject: Re: RFC: ATA to CAM integration patch X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 03 Jul 2009 14:15:31 -0000 At 09:53 AM 7/3/2009, Alexander Motin wrote: >This test looks inadequate. there is almost no modern SATA HDDs having >only 40MB/s of linear read/write speed. Usual values now are 60-100MB/s >and they should be reached with almost any working driver. Can you try >simple `dd if=/dev/ada0 of=/dev/null bs=1m count=1000`? Something about this particular disk perhaps 0[i7]# dd if=/dev/ad4 of=/dev/null bs=1m count=1000 1000+0 records in 1000+0 records out 1048576000 bytes transferred in 14.933896 secs (70214497 bytes/sec) Using a different seagate disk, 0[i7]# dd if=/dev/ad6 of=/dev/null bs=1m count=1000 1000+0 records in 1000+0 records out 1048576000 bytes transferred in 7.542932 secs (139014377 bytes/sec) 0[i7]# I will re-run the tests with the newer seagate. Perhaps a firmware update to the 'slow' one might help Protocol SATA revision 2.x device model ST380811AS serial number 6PS03G9Z firmware revision 3.AAE cylinders 16383 heads 16 sectors/track 63 lba supported 156301488 sectors lba48 supported 156301488 sectors dma supported overlap not supported Feature Support Enable Value Vendor write cache yes yes read ahead yes yes Native Command Queuing (NCQ) yes - 31/0x1F Tagged Command Queuing (TCQ) no no 31/0x1F SMART yes yes microcode download yes yes security yes no power management yes yes advanced power management no no 65278/0xFEFE automatic acoustic management no no 0/0x00 208/0xD0 >If you have issues with old driver also, then it is probably some drive >specifics, but not a bug of the new implementation. There was no changes >to the old ATA. Yes, it certainly seems so. This DVD is off the PATA bus 0[i7]# atacontrol list ATA channel 0: Master: no device present Slave: no device present ATA channel 1: Master: no device present Slave: no device present ATA channel 2: Master: no device present Slave: acd0 ATA/ATAPI revision 7 ATA channel 3: Master: ad6 SATA revision 2.x Slave: no device present ATA channel 4: Master: no device present Slave: no device present ATA channel 5: Master: no device present Slave: no device present 0[i7]# >-- >Alexander Motin >_______________________________________________ >freebsd-current@freebsd.org mailing list >http://lists.freebsd.org/mailman/listinfo/freebsd-current >To unsubscribe, send any mail to "freebsd-current-unsubscribe@freebsd.org"