On 20/05/2021 02:23, Ming Lei wrote:
BTW, recently we have seen 2x optimisation/improvement for shared sbitmap
which were under/related to nr_hw_queues == 1 check - this patch and the
changing of the default IO sched.
You mean you saw 2X improvement in your hisilicon SAS compared with
non-shared sbitmap? In Yanhui's virt test, we just bring back the perf
to non-shared sbitmap's level.
Sorry, I meant one improvement is using mq-deadline by default, and
other improvement is the change in this patch. I didn't mean a double in
throughput.
Thanks,
John
