On Sat, Oct 17, 2015 at 04:36:24PM -0400, Peter Hurley wrote: > The commonly accepted wisdom that scheduling work on the same cpu > that handled interrupt i/o benefits from cache-locality is only > true if the cpu is idle (since bound kworkers are often the highest > vruntime and thus the lowest priority). > > Measurements of scheduling via the unbound queue show lowered > worst-case latency responses of up to 5x over bound workqueue, without > increase in average latency or throughput. > > pty i/o test measurements show >3x (!) reduced total running time; tests > previously taking ~8s now complete in <2.5s.
Wow, nice job with this, that's unexpected. greg k-h -- 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/
