Ar Gwe, 2006-10-13 am 16:30 -0700, ysgrifennodd Open Source:
> There is an ioctl that is waiting for the URB to be reaped.
> I am almost certain it is this syscall that is taking 4 ms (as
> opposed to 1 ms with CONFIG_HZ=1000).
What does strace say about it ? This is measurable not speculation.
> Will the first piece of code wake up immediately or only after the
> next HZ timeslice? If it is the latter, which is what I am starting to
It depends if there are other things running and on their priority
relative to you.
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