On Wed, Jan 18, 2017 at 5:27 PM, Sagi Grimberg <sagi@xxxxxxxxxxx> wrote: > >> So what you say is you saw a consomed == 1 [1] most of the time? >> >> [1] from >> http://git.infradead.org/nvme.git/commitdiff/eed5a9d925c59e43980047059fde29e3aa0b7836 > > > Exactly. By processing 1 completion per interrupt it makes perfect sense > why this performs poorly, it's not worth paying the soft-irq schedule > for only a single completion. Your report provided this stats with one-completion dominance for the single-threaded case. Does it also hold if you run multiple fio threads per core? Regards, Andrey > > What I'm curious is how consistent is this with different devices (wish > I had some...) > > > _______________________________________________ > Linux-nvme mailing list > Linux-nvme@xxxxxxxxxxxxxxxxxxx > http://lists.infradead.org/mailman/listinfo/linux-nvme -- To unsubscribe from this list: send the line "unsubscribe linux-block" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
