From owner-freebsd-current@FreeBSD.ORG Tue Oct 19 19:17:12 2004 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 3CCE416A4CE for ; Tue, 19 Oct 2004 19:17:12 +0000 (GMT) Received: from mailhub.sweetdreamsracing.biz (mailhub.sweetdreamsracing.biz [66.92.171.106]) by mx1.FreeBSD.org (Postfix) with ESMTP id EB41043D58 for ; Tue, 19 Oct 2004 19:17:11 +0000 (GMT) (envelope-from culverk@sweetdreamsracing.biz) Received: by mailhub.sweetdreamsracing.biz (Postfix, from userid 80) id 20FCB61AA; Tue, 19 Oct 2004 15:16:54 -0400 (EDT) Received: from 141.156.69.109 ([141.156.69.109]) by www.sweetdreamsracing.biz (Horde) with HTTP for ; Tue, 19 Oct 2004 15:16:53 -0400 Message-ID: <20041019151653.68c88wsgcw8gwos8@www.sweetdreamsracing.biz> Date: Tue, 19 Oct 2004 15:16:53 -0400 From: Kenneth Culver To: Emanuel Strobl References: <20041015190638.C5A0E5D04@ptavv.es.net> <200410192031.12504.Emanuel.Strobl@gmx.net> <20041019145838.g0c0kwk0wcss04ks@www.sweetdreamsracing.biz> <200410192102.00617.Emanuel.Strobl@gmx.net> In-Reply-To: <200410192102.00617.Emanuel.Strobl@gmx.net> MIME-Version: 1.0 Content-Type: text/plain; charset="ISO-8859-1"; format="flowed" Content-Disposition: inline Content-Transfer-Encoding: 7bit User-Agent: Internet Messaging Program (IMP) 4.0-cvs cc: fandino@ng.fadesa.es cc: freebsd-current@freebsd.org Subject: Re: FreeBSD 5.3b7and poor ata performance X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.1 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: Tue, 19 Oct 2004 19:17:12 -0000 Quoting Emanuel Strobl : > Am Dienstag, 19. Oktober 2004 20:58 schrieb Kenneth Culver: >> Quoting Emanuel Strobl : > [...] >> >> How is possible that FreeBSD performs as bad? >> > >> > I have to confirm that I also have even worse transfer rates. >> > It's a ICH2 (i815e) with a not so brand new 80GB WD, but I'd expext about >> > 50MB/s and I get 16MB/s. >> > >> > One interesting thing is that the transferrate is constant with >> > blocksizes from 256 Byte on. Only with a blocksize of 128 Bytes I can see >> > reduced throughput (10MB/s). >> > I can remember, when I last did such "esoteric" tests throughput reached >> > maximum at about 16k blocksize and rapidly degraded with blocksizes >> > smaller than 10k. But now only very very small blocksizes limit the >> > throughput! >> > >> > Some excerpts: (i815 ich2, 5.3-RC1, custom kernel) >> > >> > cale:/usr#22: atacontrol mode 0 >> > Master = UDMA100 >> > Slave = BIOSPIO >> > >> > ATA channel 0: >> > Master: ad0 ATA/ATAPI revision 5 >> > >> > atapci0: port >> > 0xffa0-0xffaf,0x376,0x170-0x177,0x3f6,0x1f0-0x1f7 at device 31.1 on pci0 >> > ata0: channel #0 on atapci0 >> > ata1: channel #1 on atapci0 >> > >> > cale:/usr#25: uname -a >> > FreeBSD cale.flintsbach.schmalzbauer.de 5.3-STABLE FreeBSD 5.3-STABLE #4: >> > Sun Oct 17 02:33:58 CEST 2004 >> > root@cale.flintsbach.schmalzbauer.de:/usr/obj/usr/src/sys/CALE i386 >> >> your poor performance could be because you have a UDMA100 device on the >> same channel as a BIOSPIO device. I'd try taking the BIOSPIO device off >> that channel >> and see what happens. > > The BIOSPIO device is in fact no device :) woops, guess I missed that. I honestly don't know what to say then, My machine performs fine, actually better than I could hope for. I mean 114MB/sec on my raid 0 is pretty good. Ken > > ATA channel 0: > Master: ad0 ATA/ATAPI revision 5 > Slave: no device present > ATA channel 1: > Master: acd0 ATA/ATAPI revision 5 > Slave: acd1 ATA/ATAPI revision 5 > > Thanks, > > -Harry > >> >> Ken >> _______________________________________________ >> 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"