1. Computers
  2. Display Drivers
  3. Graphics Cards
  4. Memory
  5. Motherboards
  6. Processors
  7. Software
  8. Storage
  9. Operating Systems


Facebook RSS Twitter Twitter Google Plus


Phoronix Test Suite

OpenBenchmarking.org

The Cost Of Ubuntu Disk Encryption

Michael Larabel

Published on 20 May 2013
Written by Michael Larabel
Page 3 of 3 - 20 Comments

When dealing with multiple threads for FS-Mark, the full disk encryption and Ubuntu home directory encryption impact was similar.

For the Flexible I/O Tester, the home directory encryption was now faster than using full disk encryption for this particular strenuous disk workload.

For Compile Bench, both forms of encryption led to the throughput being more than halved.

The IOzone performance results met expectations.

While there is an obvious cost to disk encryption even for modern CPUs supporting AES-NI and when using a solid-state drive, the cost of disk encryption for production systems (particularly mobile devices) tend to be worth the cost and overhead for the added security and peace of mind. As shown by these benchmarks, the performance when using a fully encrypted LVM is also generally better than just using the encrypted home directory feature of Ubuntu 13.04.

Coming up in the next few days will also be benchmarks of the eCryptfs AES-NI performance improvements to be found with the Linux 3.10 kernel.

About The Author
Michael Larabel is the principal author of Phoronix.com and founded the web-site in 2004 with a focus on enriching the Linux hardware experience and being the largest web-site devoted to Linux hardware reviews, particularly for products relevant to Linux gamers and enthusiasts but also commonly reviewing servers/workstations and embedded Linux devices. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics hardware drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated testing software. He can be followed via and or contacted via .
Latest Articles & Reviews
  1. Kubuntu 15.04 Is Turning Out Quite Nice, Good Way To Try Out The Latest KDE
  2. 5-Way Linux Distribution Comparison On The Core i3 NUC
  3. OCZ ARC 100 Linux SSD Benchmarks
  4. Lenovo ThinkPad X1 Carbon Works Great As A Linux Ultrabook
  5. Transcend SSD370 256GB
  6. Linux 3.19 File-System Tests Of EXT4, Btrfs, XFS & F2FS
Latest Linux News
  1. ALSA 1.0.29 Released
  2. Ubuntu 15.04 Beta Released, Ubuntu MATE Made Official
  3. Coreboot Developer: Purism Doesn't Deliver On Libre Firmware
  4. LLVM 3.6 & Clang 3.6 Deliver More Features, Complete C++14 Support
  5. The Most Popular Open-Source Linux Benchmarks
  6. The Tremendous Features Of Fedora 22
  7. Krita 2.9 Released, Their Biggest Release Ever
  8. RISC OS Now Works With The Raspberry Pi 2
  9. A Single UEFI Executable With The Linux Kernel, Initrd & Command Line
  10. Unigine 2.0 Beta Brings Performance Optimizations, Oculus Rift DK2 Support
Most Viewed News This Week
  1. Linux 4.0-RC1 Tagged, Linux 4.0 Will Bring Many Notable Improvements
  2. Screenshots Of The GNOME 3.16 Changes
  3. Ubuntu 14.04.2 LTS Released & Ubuntu 15.04 Now In Feature Freeze
  4. Qt 5.5 Features: Many Exciting Improvements
  5. Mir Now Depends Upon C++14
  6. Linux 4.0 Doesn't Have The Weirdest Codename
  7. GNOME 3.16 Beta Brings Wayland-Based Log-in Screen
  8. LLVM Clang Compiling The Linux Kernel Is A Big Topic For 2015
%%CLICK_URL_UNESC%%