Re: [PATCH V5 8/8] blk-mq: improve bio merge from blk-mq sw queue

From: Christoph Hellwig
Date: Tue Oct 03 2017 - 05:21:50 EST

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This looks generally good to me, but I really worry about the impact
on very high iops devices. Did you try this e.g. for random reads
from unallocated blocks on an enterprise NVMe SSD?

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