During the first day of the latest virtual Ubuntu Developer Summit, Canonical developers plotted out the enabling of TRIM/DISCARD support by default for solid-state drives on Ubuntu.
For those not familiar with SSD TRIM, there's the Wikipedia article. The Linux kernel has had support for ATA TRIM since the 2.6.33 kernel and support has also arrived for major Linux file-systems like Btrfs, EXT4, and XFS for handling TRIM requests. Supporting TRIM requires setting the discard mount option for using TRIM when deleting files as it's not enabled by default. Read More