On Wed, 19 May 1999, Stefan Bethke wrote:
> 
> I've left out idprio(8) for now.
> 
> If someone could point me to a man page explaining the use of kern.quantum,
> and when it might be useful to fiddle with that knob, I'll happily add that
> reference to the setiathome man page.

In 3.2 kern.quantum is set to be teh frequency of how often the kernel
re-evaluates the scheduling. Defualt is 10 (10 times per second).
changing it to 50
(sysctl -w kern.quantum=50) would make it re-evaluate this more often.
in -current and post 3.2 (as of a few minutes ago) it is 
measured as uSeconds thus the default is 100000 and the equivalent
new value would be 20000. (sysctl -w kern.quantum=20000)

There were various reasons for the change and hopefully few people had
used the (new) kern.quantum feature so the changeover will hopefully
impact few people. 

julian

> 
> 
> Stefan
> 
> --
> Stefan Bethke
> Muehlendamm 12            Phone: +49-40-256848, +49-177-3504009
> D-22087 Hamburg           <[email protected]>
> Hamburg, Germany          <[email protected]>
> 
> 
> 
> To Unsubscribe: send mail to [email protected]
> with "unsubscribe freebsd-hackers" in the body of the message
> 



To Unsubscribe: send mail to [email protected]
with "unsubscribe freebsd-hackers" in the body of the message

Reply via email to