Messages in this thread | | | Date | Sun, 10 Jun 2012 00:58:56 +0200 | From | Frederic Weisbecker <> | Subject | Re: [PATCH 0/2] rcu: Extended quiescent state for adaptive nohz |
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On Thu, Jun 07, 2012 at 03:45:08PM -0700, Paul E. McKenney wrote: > > I can see you've implemented a version for TinyRCU. Nohz cpusets only work on > > SMP right now because there must be at least one CPU running with the tick > > to maintain the timekeeping. I'm pretty confident that one day we'll remove > > the jiffies and we'll be able to do the whole timekeeping by using the TSC > > or so. There is quite a way before we reach that though. > > In the meantime, would it make sense to slow the tick rate by a factor > of 10 or so on that one CPU when nothing else is going on? Or does > timekeeping absolutely require running the tick at full speed?
I'm not sure of the possible consequences of that.
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