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I have recently changed single queue to multi queue on my oracle server. This server is oracle linux 6.10 (4.1.12 kernel). I realize there is no any io scheduler for blk_mq alse show the /sys/block//queue/scheduler is none. I think I have to install kernel module for io scheduler but I don't know how can I do that. How can I enable mq_deadline or bfq io scheduler for multi queue IO block?

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These modules do not exist in the v4.1 kernel (neither in mainline nor Oracle UEK).

mq_deadline was added in v4.11 and bfq first appeared in v4.12.

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