Messages in this thread |  | | Date | Fri, 20 Oct 2000 12:49:42 -0700 (PDT) | From | Andre Hedrick <> |
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On Fri, 20 Oct 2000, safemode wrote:
> > > That's what i was thinking, but 30MB/s seems to be quite an exaggeration. > On my > Intel Corporation 82371AB PIIX4 IDE (rev 01), ide chipset my master (10.2GB
Yes because that chipset is limited to Ultra33 rates
> maxtor 7200rpm UDMA66) drive i get ~15-16MB/s and on my slave (same > interface, 20.1GB maxtor 7200rpm UDMA66), i get ~13MB/s. This goes against > logic as the bigger the drive the faster the transferrate should be, and > it's about half of your estimate of Michael's 40GB. Is this due to the > slow disk access of 2.4.0-test10-preX ? Or am i experiencing a bug here?
There is something goofy in the block layer.
> Both drives are operating at UDMA33 mode (according to hdparm) and both > drives are set to using 32bit, dma, 16 sector read ahead and 16 sector > multi-access mode. I've posted results i've gotten from bonnie and > bonnie++ before, in all cases, the performance seems to be lacking for the > kind of hardware i have.
You go through a buffered OS.
> > On Fri, 20 Oct 2000 14:58:41 Andre Hedrick wrote: > > > > Michael, > > > > Whatever card you are using, in you are getting that low I need to know > > more info. That drive should cook at 30MB/sec. > > > - > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@vger.kernel.org > Please read the FAQ at http://www.tux.org/lkml/ >
Andre Hedrick The Linux ATA/IDE guy
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org Please read the FAQ at http://www.tux.org/lkml/
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