On 06/23/2014 05:15 PM, Paul E. McKenney wrote: > Just out of curiosity, how many CPUs does your system have? 80? > If 160, looks like something bad is happening at 80.
80 cores, 160 threads. >80 processes/threads is where we start using the second thread on the cores. The tasks are also pinned to hyperthread pairs, so they disturb each other, and the scheduler moves them between threads on occasion which causes extra noise. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
