Re: [patch-mm 07/23] Tick management: spread timer interrupt

Hi, On Sun, Jun 10, 2007 at 04:31:03PM +0200, Thomas Gleixner wrote: > That's one time during setup, no hot path. Urks, should have looked at actual file then instead of patch context only, sorry! Andreas Mohr - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body

Re: [patch-mm 07/23] Tick management: spread timer interrupt

On Sun, 2007-06-10 at 16:16 +0200, Andreas Mohr wrote: > Hi, > > On Sun, Jun 10, 2007 at 09:44:05AM -, Thomas Gleixner wrote: > > From: john stultz <[EMAIL PROTECTED]> > > > > After discussing w/ Thomas over IRC, it seems the issue is the sched > > tick fires on every cpu at the same time, ca

Re: [patch-mm 07/23] Tick management: spread timer interrupt

Hi, On Sun, Jun 10, 2007 at 09:44:05AM -, Thomas Gleixner wrote: > From: john stultz <[EMAIL PROTECTED]> > > After discussing w/ Thomas over IRC, it seems the issue is the sched > tick fires on every cpu at the same time, causing extra lock contention. Hmm, the cpu-specific offset calculatio

[patch-mm 07/23] Tick management: spread timer interrupt

From: john stultz <[EMAIL PROTECTED]> After discussing w/ Thomas over IRC, it seems the issue is the sched tick fires on every cpu at the same time, causing extra lock contention. This smaller change, adds an extra offset per cpu so the ticks don't line up. This patch also drops the idle latency