begin: Chanop Silpa-Anan <[EMAIL PROTECTED]> quote > Once in debian galaxy, I heard Cheryl Homiak say > > > It's possible this might get more answers on another list, but thought I'd > > try here first. > > I have a via82c597 rev 4 chipset and an Award bios. I have anabled the > > via82cxxx support in my kernel, but perhaps I do not understand what > > numbers to put in on the command line, or for which ide to put them in, > > because no matter what I do a 33mhz bus speed is assumed; if I try putting > > 66 even in I get something about this being impossible. > > I have included part of my dmesg here, and have included enough so you can > > see my setup and a couple of other messages that puzzle me. > > Any help would be appreciated. > > 33mhz PCI bus speed is correct. Don't bother changing it. I've heard > that someone has tried and has corrupted his HD. > > To check the effect try your kernel with and without via ATA support. > check with hdparm -tT /dev/hd? to check for performance gain. When you > have via ATA support, you should be able to get higher performance > trough dma tranfer. approximately what would hdparm -tT report when udma is enabled?
i got the same values with and without udma support. it was explained to me that this is because there's a difference between a burst rate and sustained rate of data transfer. pete -- PGP Fingerprint: B9F1 6CF3 47C4 7CD8 D33E 70A9 A3B9 1945 67EA 951D PGP Public Key: finger [EMAIL PROTECTED]
