On Tue, Aug 29, 2017 at 11:46:41AM +0000, Yang Zhang wrote: > In ttwu_do_wakeup, it will update avg_idle when wakeup from idle. Here > we just reuse this logic to update the poll time. It may be a little > late to update the poll in ttwu_do_wakeup, but the test result shows no > obvious performance gap compare with updating poll in irq handler. > > one problem is that idle_stamp only used when using CFS scheduler. But > it is ok since it is the default policy for scheduler and only consider > it should enough. > > Signed-off-by: Yang Zhang <yang.zhang.wz@xxxxxxxxx> > Signed-off-by: Quan Xu <quan.xu0@xxxxxxxxx> Same broken SoB chain, and not a useful word on why you need to adjust this crap to begin with. What you want that poll duration to be related to is the cost of a VMEXIT/VMENTER cycle, not however long we happened to be idle. So no.
