Hello guys, I'd like to find a program, a script, a command line or whatsoever any other solution that will allow me to write a single file that will set all available free bits to "I". It seem that this will be a good compromise for restoring decent performance on SSD that has already been filled up by sequential writings. Sadly the option present in disk utility "delete free space" seem to be ineffective (and is setting everithing to "0"). I'd like to boot from a USB pen drive and than run this task on main disk setting all free bite to "I" until is totally out of space, than to delete the new file. Any ideas about how to?