Re: dm-multipath low performance with blk-mq

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On Mon, Jan 25, 2016 at 04:40:16PM -0500, Mike Snitzer wrote:
> On Tue, Jan 19 2016 at  5:45P -0500,
> Mike Snitzer <snitzer@xxxxxxxxxx> wrote:
> 
> > On Mon, Jan 18 2016 at  7:04am -0500,
> > Sagi Grimberg <sagig@xxxxxxxxxxxxxxxxxx> wrote:
> 
> Would still appreciate answers to my 2 questions above (did you modify
> md->tag_set.nr_hw_queues and can you share your fio job?)

The number of CPUs (if it's not obvious from the fio job) and any
relevant information about the memory architecture (is this a NUMA
system? How many nodes?) might also help reproducing this.

-Ben

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