Wow, dont i feel like a moron now. eheh. Of course it means 100Mbyte/sec, what was i thinking?? The sad thing is that i do os development. lol I tried doing "hdparm -d1 /dev/hde", which from what i read on the net is what enables DMA on disks. The performance was the same. This is a Digital Server 3305, i dont know what "name" it has (ie: miata), /proc/cpuinfo lists it as a Noritake, which is the only name which i've found for this box. http://www.compaq.com/alphaserver/archive/3300/ That could probably tell you more information about it than what i could say, and it would be more correct than i. eheh. The Ultra100 and the harddrive (Seagate Barracuda 60gig 7200RPM ATA100) i added myself. And on a side note...if anyone has memory which would fit this thing, willing to sell for a reasonable price, please contact me, i hate swapping. Richard Fillion rick@rhix.ods.org On Tue, 2002-10-15 at 01:54, Bart-Jan Vrielink wrote: > On di, 2002-10-15 at 03:52, Richard Fillion wrote: > > I recently ran an hdparm -t test on my ide disk (new ATA100 one) against > > my original scsi disk, and it lost, by quite a bit too. After some > > toying around i realized that the ide-disk module was using 33Mhz for > > transfers. It's an Ultra100 controller, so it better damn well do more > > than 33Mhz. So i tried unloading the module and reloading it with > > "idebus=66", but i get errors saying its not a valid option. > > Ultra100 means that the highest rate it has is 100 Mbyte/second over the > ide cable, which has nothing to do with the clockfrequency on the PCI > bus in MHz. 33 MHz is more than fast enough for IDE disks, because the > theoretial maximal rate the PCI bus has is 132 Mbyte/sec. This idebus > parameter is needed for systems with a VESA local bus (as found on many > i486 systems), where the busspeed can be 33, 40 or 50 MHz. > > And if you really read that message carefully, it says it uses this > value only for PIO modes, while for performance you'll want to use DMA > modes instead of PIO modes. > > > So, i was wondering, do alphas only have 33mhz pci buses or something? > > is there a reason i cant get over that speed going? 7megs/sec transfer > > isnt exactly lightning fast. Especially seeing how i use it for swap > > now too. > > All Alpha's I have use either SCSI or NFS, but I believe that many > Alpha's are not known for their fast IDE performance. If you tell us > what type of Alpha you have, maybe someone else on this list can tell > you what to do. > > -- > Tot ziens, > Bart-Jan Vrielink > > > -- > To UNSUBSCRIBE, email to debian-alpha-request@lists.debian.org > with a subject of "unsubscribe". Trouble? Contact listmaster@lists.debian.org >
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