Here are some of the best practices based on our performance testing:
- If PMEM capacity is limited, first move the database logs to PMEM first to get the performance benefits of PMEM.
- Scale-out VMs with PMEM to get the most benefit out of the PMEM device in vSphere.
- vPMEMDisk is slightly slower than SSD for write-only workloads. This is due to the inefficient implementation of Cache Flush instructions in current processors.