* add_timer_on and CONFIG_NO_HZ
@ 2007-05-30 13:28 Joe Korty
2007-05-30 15:57 ` Thomas Gleixner
0 siblings, 1 reply; 2+ messages in thread
From: Joe Korty @ 2007-05-30 13:28 UTC (permalink / raw)
To: Thomas Gleixner; +Cc: linux-kernel
Hi Thomas,
It seems that when add_timer_on() is used to put a timer
on another cpu's timer queue, that remote cpu should be
made to reprogram its hardware APIC timer, when CONFIG_NO_HZ=y
and the new timer is put at the front of the timer wheel.
Regards,
Joe
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: add_timer_on and CONFIG_NO_HZ
2007-05-30 13:28 add_timer_on and CONFIG_NO_HZ Joe Korty
@ 2007-05-30 15:57 ` Thomas Gleixner
0 siblings, 0 replies; 2+ messages in thread
From: Thomas Gleixner @ 2007-05-30 15:57 UTC (permalink / raw)
To: Joe Korty; +Cc: linux-kernel, Ingo Molnar
Joe,
On Wed, 2007-05-30 at 09:28 -0400, Joe Korty wrote:
> Hi Thomas,
> It seems that when add_timer_on() is used to put a timer
> on another cpu's timer queue, that remote cpu should be
> made to reprogram its hardware APIC timer, when CONFIG_NO_HZ=y
> and the new timer is put at the front of the timer wheel.
indeed, that makes sense. I look into this. Thanks for pointing it out.
tglx
^ permalink raw reply [flat|nested] 2+ messages in thread
end of thread, other threads:[~2007-05-30 15:57 UTC | newest]
Thread overview: 2+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2007-05-30 13:28 add_timer_on and CONFIG_NO_HZ Joe Korty
2007-05-30 15:57 ` Thomas Gleixner
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox