Disk Encryption Tests On Fedora 21

Written by Michael Larabel in Storage on 20 January 2015 at 11:00 AM EST. Page 4 of 4. 27 Comments.

For the other disk-oriented benchmarks, the performance overhead of using the LUKS encrypted system was lowered by just a few percent.

Overall during the course of all the open-source Linux benchmarks ran for this article, the CPU usage difference averaged out to being just 1% higher with the encrypted system compared to the stock Fedora 21 installation for the Core i7 ASUS Zenbook ultrabook.

While there is a small performance overhead in using full-disk encryption for modern systems, I'd still highly recommend using full-disk encryption for any production systems storing sensitive information.

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Michael Larabel is the principal author of Phoronix.com and founded the site in 2004 with a focus on enriching the Linux hardware experience. Michael has written more than 20,000 articles covering the state of Linux hardware support, Linux performance, graphics drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated benchmarking software. He can be followed via Twitter, LinkedIn, or contacted via MichaelLarabel.com.