Re: [PATCH v4 17/25] ibnbd: client: main functionality

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On Wed, Sep 18, 2019 at 5:47 PM Bart Van Assche <bvanassche@xxxxxxx> wrote:
> Combining multiple queues (a) into a single queue (b) that is smaller
> than the combined source queues without sacrificing performance is
> tricky. We already have one such implementation in the block layer core
> and it took considerable time to get that implementation right. See e.g.
> blk_mq_sched_mark_restart_hctx() and blk_mq_sched_restart().

Roma, can you please estimate the performance impact in case we switch to it?



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