Messages in this thread | | | Date | Wed, 6 May 2020 18:21:27 -0400 | From | Daniel Jordan <> | Subject | Re: [PATCH 6/7] mm: parallelize deferred_init_memmap() |
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On Tue, May 05, 2020 at 07:55:43AM -0700, Alexander Duyck wrote: > One question about this data. What is the power management > configuration on the systems when you are running these tests? I'm > just curious if CPU frequency scaling, C states, and turbo are > enabled?
Yes, intel_pstate is loaded in active mode without hwp and with turbo enabled (those power management docs are great by the way!) and intel_idle is in use too.
> I ask because that is what I have seen usually make the > difference in these kind of workloads as the throughput starts > dropping off as you start seeing the core frequency lower and more > cores become active.
If I follow, you're saying there's a chance performance would improve with the above disabled, but how often would a system be configured that way? Even if it were faster, the machine is configured how it's configured, or am I missing your point?
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