Messages in this thread | | | Date | Mon, 27 Apr 2009 11:24:51 +0530 | From | Dipankar Sarma <> | Subject | Re: [RFC PATCH v1 0/3] Saving power by cpu evacuation using sched_mc=n |
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On Mon, Apr 27, 2009 at 05:52:16AM +0200, Ingo Molnar wrote: > > Regarding the values for 2...5 - is the AvgPower column time > normalized or workload normalized? > > If it's time normalized then it appears there's no power win here at > all: we'd be better off by throttling the workload directly (by > injecting sleeps or something like that), right?
Energy savings with this will depend on the workload running. We have seen transactional workloads where taking off a few cores has almost no impact on throughput or response time.
Thanks Dipankar
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