On 11/12/2012 06:27 PM, John Stultz wrote:
> Hey Prarit, > Just back from being on leave, and wanted to check in on this. Did you > ever > get to run with an increase sample size to see how that affected things? Its > exactly your point that the non-NOHZ case could align the execution of a short > run in a way that you always see good results, where as with NOHZ the > alignment > might not be the same, so you see periodic delays from timer interrupts, etc. > > Anyway, let me know if this got resolved or not. Hey John, I never did narrow this down, although this "disappears" with the move to the lower resolution patches in upstream. I have not, however, done any testing to see if the situation is actually resolved or if we just reduced the problem by a factor of 1000 ;) P. -- 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/

