The Performance Impact Of Linux Disk Encryption On Ubuntu 14.04 LTS
Written by Michael Larabel in Operating Systems on 10 March 2014 at 12:50 AM EDT. Page 3 of 5. 38 Comments.
Running FS-Mark was a similar story to the PostMark data. Both forms of disk encryption yield a noticeable performance impact for disk intensive workloads while the full disk encryption led to less of a performance penalty than just encrypting the home directory.
For the FS-Mark tests the CPU usage was close between the two encryption methods.