`log show -start $(date +%F) | grep -i spaceman_trim_free_blocks` We can check to verify Trim is running on a drive by performing the following: `sudo trimforce -disable` Verifying Trim on macOSĪpple macOS does not have a function to manually run a Trim command, instead it is run when a supported drive and supported file system is detected by the operating system. Trim can be disabled with the following command:

This requires administrative permissions to run and you will need to enter your password to continue.Ī long warning will be presented, please read this fully. Open a terminal (Finder > Go > Utilities > Terminal) and enter the following command:

Apple macOS runs Trim when the file system is detected by the operating system, this is either on device connection or system restart, Apple does not provide a manual Trim tool like with Windows or Linux. Advanced users can also enable Trim for USB connected SSDs with Apple APFS formatted partitions. Apple macOS enables Trim for internal Apple SSDs only.

Enable trim mac os high sierra