On 15 Jan 2002, Simon Wong wrote:
> I have noticed on booting that I have a message saying that an IDE bus
> speed of 33MHz is being assumed.
That's 33MHz *PCI* bus speed. Even if it says IDE everywhere near it.
> As far as I know the i8000 has a 66MHz bus speed.
That's unlikely. It may support UDMA-66 mode for the drives.
> Has anyone had any experience with appending idebus=66 to the boot
> prompt?
Hopefully not...
> Will it damage anything if not true?
...because it will make the IDE driver get all the timings for PIO mode
wrong. I don't know if it's going to damage things if you tell it the
wrong timings, but it's certainly not going to help.
> Will it make much difference to end performance
No.
> - I'm assuming only for intensive disk use
No, not even then.
> but that may speed up my "locate" updates?
Certainly not for 'locate' updates, a process which spends it's time
seeking around the disk.
Daniel
--
If you lie to the compiler, it will get its revenge.
-- Henry Spencer
