As I understand it, the new HPET timers are sufficiently different from the
old RTC chips, that the RTC timer has gotten screwed up in the transition.
Ie, you could use the new hpet fuctionality and it would work well.
Unfortunately no software does. It uses the old RTC interface, and that as
I understand it is worse under the new chipsets than it even was under the
old.
I may quite possibly be all wet in this.
On Sat, 31 Dec 2005, Lee Revell wrote:
On Sat, 2005-12-31 at 12:36 -0800, Bill Unruh wrote:
But the problem is getting those ticks out. In particular, with the
new timer chips on the newer chipsets, rtc works by polling, which is
notoriously bad at accurate timing. Even with interrupts, you cannot
have them too often or your computer will not do much, and the timer
interrupt could be delayed. Ie, your computer does a whole lot of
stuff besides audio all of which can interfer with the
timing.
What RTC chipsets are you referring to that can't generate periodic
interrupts?
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