May 262017
 
CentOS 7:

https://bashtheshell.github.io/guide/ssd-trim-on-centos-7/

 

Windows 7:

Enabled by default but can be confirmed via elevated command prompt and:

fsutil behavior query disabledeletenotify

DisableDeleteNotify = 1 = TRIM support disabled
DisableDeleteNotify = 0 = TRIM support enabled

To enable trim, issue:

fsutil behavior set disabledeletenotify 0

 

Mac OS X:

Enabled by default on Apple provided SSDs.
Requires enabling on third-party provided SSDs.

To confirm via the terminal, issue:

system_profiler SPSerialATADataType | grep 'TRIM'

Enable TRIM via terminal, with this command:

sudo trimforce enable

Follow the on-screen advice.

For reference, Third-party solutions include Cindori TrimEnabler, which were
a workaround when Apple temporarily disabled default trim support
for non-Apple SSDs.