Hi All,

 

Am I correct in thinking that in latest kernels, now that krbd is supported
via blk-mq, the maximum queue depth is now 128 and cannot be adjusted

 

https://github.com/torvalds/linux/blob/master/drivers/block/rbd.c

3753:     rbd_dev->tag_set.queue_depth = BLKDEV_MAX_RQ;

 

blkdev.h

42:          #define BLKDEV_MAX_RQ   128

 

This potentially seems a bit low for some use cases if it can't be adjusted.

 

Nick




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