The default I/O scheduler queues information to reduce seeks on HDDs, which isn't essential for SSDs. Consequently, use the "deadline" scheduler that just assures bulk transactions is not going to decelerate smaller transactions: Install sysfsutils and The TRIM command offers that bridge in the file stage for the block https://trimssddrive83320.jts-blog.com/19915032/not-known-details-about-trim-ssd-disk