Re: [Announce] [patch] Modular Scheduler Core and Completely Fair Scheduler [CFS]

Ingo Molnar
2007-04-14T10:56:27Z

* Daniel Walker <dwalker@mvista.com> wrote:

> One other thing, what happens in the case of slow, frequency changing,
> are/or inaccurate clocks .. Is the old sched_clock behavior still
> tolerated?

yeah, good question. Yesterday i did a quick testboot with that too, and
it seemed to behave pretty OK with the low-res [jiffies based]
sched_clock() too. Although in that case things are much more of an
approximation and rounding/arithmetics artifacts are possible. CFS works
best with a high-resolution cycle counter.

Ingo