Re: Help with the high res timers
From: Chris Friesen
Date: Wed May 04 2005 - 12:49:22 EST
George Anzinger wrote:
The, I think, elegant solution to the timer storm problem is to
not restart the timer until the user picks up the prior expiration.
This dynamically adjusts the timer response to the amount of machine
available at the time.
The disadvantage is that you then lose accuracy since each timer
interval is increased by some random amount based on system scheduling.
What about some kind of ulimit-type thing to specify the minimum
recurring interval that can be specified? If root so specifies, you
could have 1usec interval timers and the system would hang. This is
conceptually no different than busy-looping in a SCHED_FIFO task.
Chris
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