| Issue | Observed in top | Mitigation | |-------|------------------|-------------| | Slow disk I/O | High sys CPU, low throughput in Disk line | Place VMDK on NVMe SSD; use vdiskmanager to defrag VMDK | | CPU overcommit | Load average > # of vCPUs | Reduce vCPUs to match host’s physical cores | | Memory pressure | Compressed memory, high pageouts | Increase VM RAM or reduce host contention | | Missing paravirtual drivers | High sys CPU for I/O | Use VMware Fusion (NVMe virtual controller) | | Spotlight indexing | mdworker using high CPU | Disable Spotlight on VM’s root volume |

: Tools like Auto-Unlocker are essential to enable the "Apple Mac OS X" option in the guest OS selection menu.

vmware-vdiskmanager -r source.vmdk -t 2 dest.vmdk