Linus Torvalds wrote:
quoted text
> 
> On the machine you have trouble with the PIT on, does this thing trigger?
> 
> If it does, that could be a simple way to say whether you prefer PM_TIMER 
> over PIT.
> 
> For me, even on a modern machine, I get a pit_count of 46321, which 
> matches the "about one microsecond for an ISA/LPC read" timing pretty 
> well. What do you get? 

On the problem AMD K6, the count is 29411. On my almost new AMD Turion 
64 X2 that runs at 2.0 GHz, the value was 31401. A cutoff value of 
25000 may be a bit close. That machine says that it calibrates against 
the PM_TIMER, but cat /sys/devices/...../current_clocksource returns 
hpet.

Larry
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