On 03/08/2016 06:52 PM, Sebastian Andrzej Siewior wrote: > However I don't think if your DEFER flag solution is all that bad. I > have also the block-mq in -RT using swait and they perform wakes with > irqs-off. Not in -RT but mainline. So me might need something to make it > work properly. But if we defer the wakeup they might come at us and > complain about the latency… I intended to extend the test code to measure the latency diff as well. Just to get a feeling how bad it is. At least with a lot of waiters on the completion the current measurement indicate an improvement. I guess with real workload the things look quite different. cheers, daniel -- To unsubscribe from this list: send the line "unsubscribe linux-rt-users" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
