On Wed, Jul 15, 2015 at 01:47:15PM -0700, Andres Lagar-Cavilla wrote: > I think the remaining question here is performance. > > Have you conducted any studies where > - there is a workload > - a daemon is poking kpageidle every N seconds/minutes > - what is the daemon cpu consumption? > - what is the workload degradation if any? > > N candidates include 30 seconds, 1 minute, 2 minutes, 5 minutes.... > > Workload candidates include TPC, spec int memory intensive things like > 429.mcf, stream (http://www.cs.virginia.edu/stream/ "sustainable > memory bandwidth" vs floating point performance) > > I'm not asking for a research paper, but if, say, a 2 minute-period > daemon introduces no degradation and adds up to a minute of cpu per > hour, then we're golden.
Fair enough. Will do that soon and report back. Thanks a lot for the review, it was really helpful! Vladimir -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
