Re: [PATCH V5 00/14] blk-mq-sched: improve sequential I/O performance(part 1)

[Johannes Thumshirn]

Hi John,

On Tue, Oct 10, 2017 at 01:24:52PM +0100, John Garry wrote:
> It's using cfq (for non-mq) and mq-deadline (obviously for mq).

Please be aware that cfq and mq-deadline are _not_ comparable, for a realistic
comparasion please use deadline and mq-deadline or cfq and bfq.

> root@(none)$ pwd
> /sys/devices/platform/HISI0162:01/host0/port-0:0/expander-0:0/port-0:0:7/end_device-0:0:7
> root@(none)$ more ./target0:0:3/0:0:3:0/block/sdd/queue/scheduler
> noop [cfq]

Maybe missing CONFIG_IOSCHED_DEADLINE?

Thanks,
	Johannes

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Johannes Thumshirn                                          Storage
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