Messages in this thread | | | Subject | Re: 2.6.13-rc7-rt1 | From | Daniel Walker <> | Date | Thu, 25 Aug 2005 18:15:44 -0700 |
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On Fri, 2005-08-26 at 02:22 +0200, Thomas Gleixner wrote: > On Thu, 2005-08-25 at 16:29 -0700, Daniel Walker wrote: > > Devastating latency on a 3Ghz xeon .. Maybe the raw_spinlock in the > > timer base is creating a unbounded latency? > > The lock is only held for really short periods. The only possible long > period would be migration of timers from a dead hotplug cpu to another. > I guess thats not the case. > > Do you have HIGH_RES_TIMERS enabled ?
No. The cascade has a very long worst case.
Daniel
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