RHEL7: Large block read performance issue with XFS+LVM with Intel NVMe
Issue
- Large block reads from a
XFSfile system backed by aLVMLogical Volume on a Intel NVMe device are under performing. - This behavior is not observed on a
XFSfile system directly on the NVMe device. - Reads from a
EXT4file system on a Logical Volume do not exhibit this behavior.
Environment
- Red Hat Enterprise Linux 7
XFSon aLVMLogical Volume- NVMe storage
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