Messages in this thread | | | Date | Tue, 27 May 2003 13:01:55 -0700 | From | george anzinger <> | Subject | Re: setitimer 1 usec fails |
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David Mosberger wrote: >>>>>>On Mon, 26 May 2003 15:00:53 -0700, george anzinger <george@mvista.com> said: > > > George> As a test, you might try your test with HZ=1000 (a number I > George> recommend for ia64, if at all possible). > > I suspect you might have a slightly biased view on this. ;-) Yes, > HZ=1000 makes some problems easier to convert ticks to real time, but > slower to convert real time to ticks.
Ulrich has written something on this. Maybe he could comment :)
-g
> > Besides, the Linux kernel MUST work with (fairly) arbitrary HZ values, > because some platforms just don't have much of a choice (e.g., Alpha > is pretty much forced to 1024Hz). > > But, yes, on ia64 we can choose HZ to our liking. If someone presents > evidence that shows a real benefit for a value other than 1024, I'm > certainly willing to listen. > > --david > >
-- George Anzinger george@mvista.com High-res-timers: http://sourceforge.net/projects/high-res-timers/ Preemption patch: http://www.kernel.org/pub/linux/kernel/people/rml
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