Recently upgraded a CEPH client to CentOS 7.5. Upon doing so read and write performance became intolerably slow. ~2.5 MB/s. When booted back to a CentOS 7.4 kernel, performance went back to a normal 200 MB/s read and write. I have not seen any mention of this issue in all of the normal places including here. For now the solution is clear - don’t use the 7.5 update. Has anyone else experienced this issue?
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