Messages in this thread | | | Subject | Re: Increasing HZ (patch for HZ > 1000) | From | john stultz <> | Date | 15 Dec 2003 19:04:14 -0800 |
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On Fri, 2003-12-12 at 15:40, Pavel Machek wrote: > > For now, my patch only allows up to around 10 kHz. At that frequency, I > > don't hear anything because the noise is not loud enough (ear is much > > more sensitive at 1 kHz). Also, I have around 10% overhead on my > > Pentium-M 1.6 GHz, so I guess it's not for everyone. Extrapolating from > > there, I'd also say that at 100 kHz, it wouldn't do anything but handle > > the interrupts, which is slightly annoying when you want to actually get > > some work done :) > > I wonder what happens at 200kHz then; system might detect some lost > ticks and keep running at very slow speed...
Indeed, with all the trouble HZ==1000 has caused, I'm thinking that playing w/ HZ at 10k and 10 would be good stress tests for the time subsystem.
I'd be interested in hearing how much drift people see when running w/ this patch.
thanks -john
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