Messages in this thread | | | Subject | Re: [patch-mm 07/23] Tick management: spread timer interrupt | From | Thomas Gleixner <> | Date | Sun, 10 Jun 2007 16:31:03 +0200 |
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On Sun, 2007-06-10 at 16:16 +0200, Andreas Mohr wrote: > Hi, > > On Sun, Jun 10, 2007 at 09:44:05AM -0000, Thomas Gleixner wrote: > > From: john stultz <johnstul@us.ibm.com> > > > > 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 calculation isn't too expensive, hopefully? > (div/mul in patch, maybe this could be done differently)
That's one time during setup, no hot path.
tglx
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