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 Linux Hardware Reviews
  1. Even With Re-Clocking, Nouveau Remains Behind NVIDIA's Proprietary Linux Driver
  2. The Power Consumption & Efficiency Of Open-Source GPU Drivers
  3. AMD R600g/RadeonSI Performance On Linux 3.16 With Mesa 10.3-devel
  4. Intel Pentium G3258 On Linux
Latest Linux Articles
  1. Updated Source Engine Benchmarks On The Latest AMD/NVIDIA Linux Drivers
  2. Nouveau vs. Radeon vs. Intel Tests On Linux 3.16, Mesa 10.3-devel
  3. KVM Benchmarks On Ubuntu 14.10
  4. X.Org Server 1.16 Officially Released With Terrific Features
Latest Linux News
  1. GNOME's GTK+ Is Still Striving For A Scene Graph, Canvas API
  2. Unreal Tournament Looks Great For Team Deathmatch
  3. LibreOffice 4.3 Released With Many Exciting Changes
  4. GNOME/GTK On Wayland Gains Focus At GUADEC
  5. GNOME Stakeholders Take Issue With Groupon Over their Gnome
  6. GStreamer VA-API Plug-In Update Adds New Features
  7. Qt 5.4 Going Into Feature Freeze Next Week With Exciting Changes
  8. OpenSUSE Factory Turns Into Rolling Release Distribution
  9. "The World's Most Highly-Assured OS" Kernel Open-Sourced
  10. NVIDIA Is Working Towards VDPAU H.265/HEVC Support
Latest Forum Discussions
  1. Grand Theft Auto Running On Direct3D Natively On Linux Shows Gallium3D Potential
  2. Open-source drivers on ATI R7 260X
  3. AMD Athlon 5350 APU On Linux
  4. Linus Torvalds On GCC 4.9: Pure & Utter Crap
  5. Updated and Optimized Ubuntu Free Graphics Drivers
  6. Debian + radeonsi
  7. List of Linux friendly Kickstarter projects
  8. Porting Mesa to the Playstation 2