Elena Reshetova <elena.reshetova@xxxxxxxxx> writes:
> Elena Reshetova (6):
> block: convert bio.__bi_cnt from atomic_t to refcount_t
> block: convert blk_queue_tag.refcnt from atomic_t to refcount_t
> block: convert blkcg_gq.refcnt from atomic_t to refcount_t
> block: convert io_context.active_ref from atomic_t to refcount_t
> block: convert bsg_device.ref_count from atomic_t to refcount_t
> drivers, block: convert xen_blkif.refcnt from atomic_t to refcount_t
Hi Elena,
While the bsg ref_count is cheap, do you have any numbers how the other
conversions compare in performance (throughput and latency) vs atomics?
It should be quite easy to measure against a null_blk device.
Thanks a lot,
Johannes
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Johannes Thumshirn Storage
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