Linked by Eugenia Loli-Queru on Thu 26th Apr 2007 06:36 UTC, submitted by RJop
Linux Kernel 2.6.21 has been announced. Linus writes: "So the big change during 2.6.21 is all the timer changes to support a tickless system (and even with ticks, more varied time sources). Thanks (when it no longer broke for lots of people ;) go to Thomas Gleixner and Ingo Molnar and a cadre of testers and coders." More info here and here.
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Member since:
2006-01-16
Well some part is missing. There are processes that want to be woken up after X milliseconds.
So the system has also to make sure to wake up at the next of these events.
A reasonable solution would be to disable the timer interrupt only of no process waits for a timing event, but if so, change the interrupt's frequency according to it.
It is explained here: http://kernelnewbies.org/Linux_2_6_21#head-8547911895fda9cdff32a947...
Edited 2007-04-26 17:14