tick, tick, tick...
By esaxe on May 20, 2007
As part of the Tesla Project, we're going to be looking at providing a "scheduled" clock implementation. The clock cyclic currently fires 100 times a second somewhere in the system. From a power management perspective, it would be nice if the clock fired only when necessary (something is scheduled to timeout, scheduled accounting is due, etc). This would allow the CPU on which the clock cyclic fires to potentially remain quiescent much longer (on average), which in turn would mean that the CPU could remain longer (or go deeper) in a power saving state.
It might be that the scaling issue becomes less so if the clock doesn't always have to fire. Then again, this may be one of those "elephant in the living room" type issues...you can pretend that it isn't there only so long... :)
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