Date: Thu, 24 Jul 2003 07:02:32 -0500 From: David Leimbach <leimy2k@mac.com> To: Soeren Schmidt <sos@spider.deepcore.dk> Cc: current@FreeBSD.ORG Subject: Re: questions on S-ATA and ICH5 (now owns hardware :) Message-ID: <B48DC4A2-BDCE-11D7-907E-0003937E39E0@mac.com> In-Reply-To: <200307240936.h6O9aDSN023183@spider.deepcore.dk> References: <200307240936.h6O9aDSN023183@spider.deepcore.dk>
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>> >> atapci1: <Intel ICH5 SATA150 controller> port=20 >> 0xd000-0xd00f,0xcc00-0xcc03,0xc800-0xc807,0xc400-0xc403,0xc000-0xc007=20= >> irq 9 at device 31.2 on pci0 >> ... >> ata2: at 0xc000 on atapci1 >> ad4: success setting UDMA133 on Intel ICH5 chip >> ad4: <ST3120023AS/3.01> ATA-6 disk at ata2-master >> ad4: 114473MB (234441648 sectors), 232581 C, 16 H, 63 S, 512 B >> ad4: 16 secs/int, 1 depth queue, UDMA133 >> ad4: piomode=3D12 dmamode=3D34 udmamode=3D70 cblid=3D1 >> >> Shouldn't this drive be found as a SATA150 device? > > Well, technically yes, but in practice the modes the drives reports > back as supported are the old UDMA ones, however the interface will > run at SATA150 speed no matter what. I've not found a surefire way > to tell this apart yet that also gives resonable results if you > use a SATA->PATA dongle and other wierd comboes now possible... > Yeah. My drive shows up as UDMA133 also. What I did notice is that my WD Raptor was slightly outperformed a few times on UFS2 by my actual ATA-100 Western Digital drive. This seems somewhat bad as the Raptor costs a hell of a lot more and one would hope that it would pound the ATA-100 drive pretty thoroughly. Even the CPU overheads on both drives were about the same. Maybe its=20 that 8MB caching :). I haven't found a good reason yet. Soeren, do you actually have SATA drives to test with or do you just=20 have SATA adapters with SATA->PATA dongles? Do you need more hardware to run some benchmarks yourself? [I don't know that I can afford to buy you a SATA disk but I wonder anyway :)] Dave > -S=F8ren > _______________________________________________ > freebsd-current@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-current > To unsubscribe, send any mail to=20 > "freebsd-current-unsubscribe@freebsd.org"
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