Re: 2.4.18-pre7 slow ... apm problem

[Alan Cox]

> > managing the APM state of the processor (and leaving it in
> > powersave)
> 
> APM idling is done if apm_cpu_idle() is called, and then if
>     DELTA(current->times.tms_stime)
>     -------------------------------
>     DELTA(jiffies)
> is greater than the idle threshold of 0.95.  Could that ratio be
> affected by VMware?  If so, how?

Suppose vmware decides to switch between running Linux and its virtualised
Windows OS. Can it do this during an interrupt - if so what ensures that
vmware isnt switched to after we have done APM idle calls and slowed the
CPU right down ?

If so then I suspect vmware should be issuing APM cpu busy calls itself