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SubjectRe: [PATCH v2 1/2] block: Introduce nr_sched_batch sys interface
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> Do we need this new parameter? How does the performance of reducing 
> nr_requests compare to configuring nr_sched_batch?

It seems I can't get convincing data in the current test conditions, sorry,
please ignore it unless I can produce valid evidence.

I will reconsider the effect of this modification on a single disk,
from recent testing it seems that the link to the raid controller has
a lot of impact.

Thanks,

Wang.


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