From: Edwin Van leeuwen <edder@...>
Date: 2007-04-27T19:14:06+09:00
Subject: Re: 10 millisecond delay/callback

evanwebb@gmail.com wrote:
> It's unlikely to get 10ms intervals reliably even in C, so getting it
> in ruby is very unlikely.
> 
> The reason it's hard to get it even in C is (as man setitimer says):
> "Time values smaller than the resolution of the system clock are
> rounded up to this resolution (typically 10 milliseconds)."

I've been reading about this a bit lately and as far as I understand it, 
windows has a 15ms "tick" (this might be different for different windows 
versions)

The linux tick is by default 10ms. You can change linux to 1ms though 
(1000HZ), by changing a kernel setting:
CONFIG_HZ_1000=y

I use 1000 HZ and my output is:
123
133
143
153
163
173
183
193
203
213
223
233


Edwin

-- 
Posted via http://www.ruby-forum.com/.