Increase queue_depth in KVM

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Hello,

When I mount rbd image with -o queue_depth=1024 I can see much improvement, generally on writes(random write improvement from 3k IOPS on standard queue_depth to 24k IOPS on queue_depth=1024).

But is there any way to attach rbd disk to KVM instance with custom queue_depth? I can't find any information about it.

Thanks for any informations.
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