HZ value changed from 250 to 1000 in the latest updated kernel

Arjan van de Ven arjan at fenrus.demon.nl
Tue Nov 21 15:00:33 UTC 2006


On Tue, 2006-11-21 at 15:41 +0100, Ralf Corsepius wrote:
> On Tue, 2006-11-21 at 13:28 +0100, Arjan van de Ven wrote:
> > On Tue, 2006-11-21 at 15:12 +0300, Dmitry Butskoy wrote:
> 
> > > Second, why Fedora's change is implemented just now (in the middle of 
> > > life cycle), but not at distro release boundary?
> > 
> > does it matter? This is only internally visible to the kernel, not to
> > userspace (other than an improvement in accuracy)
> Well, in the past (several years ago), changes to HZ and kernel ticker
> frequencies had broken "make"/"gmake" and similar tools. 

in the 2.4 kernel this was an issue yes; in 2.6 it shouldn't

(also remember that earlier FC versions had 1000 already for a long
time)




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