Re: [PATCH v4 4/7] block/null_blk: Support disabling zone write locking

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On 7/27/23 04:34, Bart Van Assche wrote:
> Add a new configfs attribute for disabling zone write locking. Tests
> show a performance of 250 K IOPS with no I/O scheduler, 6 K IOPS with
> mq-deadline and write locking enabled and 123 K IOPS with mq-deadline
> and write locking disabled. This shows that disabling write locking
> results in about 20 times more IOPS for this particular test case.
> 
> Cc: Christoph Hellwig <hch@xxxxxx>
> Cc: Damien Le Moal <dlemoal@xxxxxxxxxx>
> Cc: Ming Lei <ming.lei@xxxxxxxxxx>
> Signed-off-by: Bart Van Assche <bvanassche@xxxxxxx>

Reviewed-by: Damien Le Moal <dlemoal@xxxxxxxxxx>

-- 
Damien Le Moal
Western Digital Research




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