Tickless Idle

Downloads

Deferrable timers
Pointers for the patch:
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=6e453a67510a17f01b63835f18569e8c3939a38c
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=28287033e12463c8ff89f1ea8038783d0360391c

The deferrable timer can be used with any timer:

• that needs a sub-second precision timer when the CPU is busy
• where precision does not actually matter when the CPU is idle

round_jiffies
Below are the list of patches that are merged upstream. They migrate a few commonly used timers to use these new kernel APIs.

• Round jiffies in corrected MCE polling (2.6.23-rc1) http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=22293e5806f58a9682267139678a5cc117fd3dcf
• usb-autosuspend timer 1 sec jiffy aligned (2.6.23-rc1) http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=8d6d5fd05088c023bb8b22a4bd0067c21f9c5f18
• round_jiffies for net dev watchdog timer (2.6.22-rc4)
  http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=60468d5b5b6931b4d4d704e26b5f17a6e476e6f8

ICH HPET native probe (that is, force enable HPET on ICH)
( TBD )