Re: Flash chip locking

Richard Gooch
2000-06-28T15:10:20Z

[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #1: Type: text/plain, Size: 751 bytes --]

Brendan Simon writes:
> You are implying that 128us is a large amount of time to wait.  Maybe
> with todays processors it is, I don't really know if it is or isn't for
> the average processor speed.  Does the udelay() imply that the scheduler
> can switch to another process ?  If so, I would have thought that the
> scheduling process would take a lot longer that 128us, but I could be
> wrong !!!

Even on a P5, scheduling processes is < 10 us. The problem is getting
control back before they complete their timeslice. If we had an
interrupt after that 128 us it would be easy.

Regards,

Richard....
Permanent: rgooch@atnf.csiro.au
Current: rgooch@ras.ucalgary.ca