atapci1: <Intel ICH5 SATA150 controller> port 0xd000-0xd00f,0xcc00-0xcc03,0xc800-0xc807,0xc400-0xc403,0xc000-0xc007 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=12 dmamode=34 udmamode=70 cblid=1
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 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 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
-Søren
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