 Support for queued TRIM, which is a SATA 3.1 feature that results in TRIM commands not disrupting the command queues, was introduced in Linux kernel 3.12, released on November 2, 2013.An alternative to the kernel-level TRIM operation is to use a user-space utility called that goes through all of the unused blocks in a filesystem and dispatches TRIM commands for those areas.utility is usually run by cron as a scheduled task.