hi， I upgraded CEPH to 0.87 for rbd readahead , but can't see any performance improvement in 4K seq read in the VM. How can I know if the readahead is take effect?
thanks. ceph.conf [client] rbd_cache = true rbd_cache_size = 335544320 rbd_cache_max_dirty = 251658240 rbd_cache_target_dirty = 167772160 rbd readahead trigger requests = 1 rbd readahead max bytes = 4194304 rbd readahead disable after bytes = 0 -------------------------------------------------------- ZTE Information Security Notice: The information contained in this mail (and any attachment transmitted herewith) is privileged and confidential and is intended for the exclusive use of the addressee(s). If you are not an intended recipient, any disclosure, reproduction, distribution or other dissemination or use of the information contained is strictly prohibited. If you have received this mail in error, please delete it and notify us immediately.
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