Messages in this thread | | | Subject | Re: [RFC PATCH v1 00/11] Create fast idle path for short idle periods | From | Arjan van de Ven <> | Date | Mon, 17 Jul 2017 12:55:33 -0700 |
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On 7/17/2017 12:53 PM, Thomas Gleixner wrote: > On Mon, 17 Jul 2017, Arjan van de Ven wrote: >> On 7/17/2017 12:23 PM, Peter Zijlstra wrote: >>> Of course, this all assumes a Gaussian distribution to begin with, if we >>> get bimodal (or worse) distributions we can still get it wrong. To fix >>> that, we'd need to do something better than what we currently have. >>> >> >> fwiw some time ago I made a chart for predicted vs actual so you can sort >> of judge the distribution of things visually > > Predicted by what?
this chart was with the current linux predictor
http://git.fenrus.org/tmp/timer.png is what you get if you JUST use the next timer ;-) (which way back linux was doing)
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