On a MacBookPro with the Apple SSD formatted for APFS. My Mint VM is configured with the hard disk box checked "Support Trim". Linux typically does not issue a TRIM after every delete, just runs a cron job once a week. Two questions: 1. Does the Parallels support under 13.3 and MacOS 10.13.3 support queued TRIM commands? Are the native SSD characteristics passed thru to the VM? 2. When is one or more TRIM commands ACTUALLY issued by Parallels? When the VM issues a TRIM? When the virtual disk is closed as Parallels quits? Kind of makes a difference if you are doing big compile/link/load testing for hours on end.