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 1 of 3 - 20 Comments

It's been a while since last running any Ubuntu Linux disk encryption benchmarks, but thanks to recent encryption improvements within the upstream Linux ecosystem, it's time to deliver some new Linux disk encryption benchmarks. In this article are results comparing Ubuntu 13.04 without any form of disk encryption to using the home directory encryption feature (eCryptfs-based) and full-disk encryption (using LUKS with an encrypted LVM).

Linux disk encryption continues to improve thanks to modern Intel and AMD processors supporting AES-NI, which is an instruction set extension to better accelerate AES encryption on the processor. Both methods of disk encryption exposed via the Ubuntu Linux installer support automatically taking advantage of AES-NI on supported hardware. The benchmarks in this article were done from an AMD FX-8350 "Vishera" (Bulldozer 2) CPU that does support AES-NI and the disk drive used was a 60GB OCZ Vertex 2 solid-state drive.

Both the eCryptfs home directory encryption and full-disk encryption can be easily setup through Ubuntu's Ubiquity installer as well as through the alternate installer interface for servers. Regardless of the performance impact, I continue to recommend (and personally use) full-disk encryption for all production mobile systems to mitigate security risk.

Aside from looking at the disk performance itself, the Phoronix Test Suite benchmarking software also monitored the CPU usage in real-time via setting the MONITOR=cpu.usage environment variable prior to test execution.

<< Previous Page
1
Latest Linux Hardware Reviews
  1. CompuLab Intense-PC2: An Excellent, Fanless, Mini PC Powered By Intel's i7 Haswell
  2. From The Atom 330 To Haswell ULT: Intel Linux Performance Benchmarks
  3. AMD Radeon R9 285 Tonga Performance On Linux
  4. Apotop Wi-Copy
Latest Linux Articles
  1. AMD Moves Forward With Unified Linux Driver Strategy, New Kernel Driver
  2. MSI: Update Your BIOS From The Linux Desktop
  3. NVIDIA vs. AMD 2D Linux Drivers: Catalyst Is Getting Quite Good At 2D
  4. 15-Way GPU Comparison With Mesa 10.3 + Linux 3.17
Latest Linux News
  1. Following GCC, Clang Looks To Default To C11
  2. Users/Developers Threatening Fork Of Debian GNU/Linux
  3. Linux 3.18-rc1 Released One Week Early With Many Changes
  4. The VC4 Gallium3D Driver Is Still Moving Along For The Raspberry Pi
  5. Direct3D 9 Support Might Land Within Mainline Mesa 3D Drivers
  6. OpenGL Preview Benchmarks For NVIDIA's GeForce GTX 970
  7. HOPE: The Ease Of Python With The Speed Of C++
  8. Vitesse: Using LLVM To Speed Up Databases
  9. AMD Is Restructuring Again, Losing 7% Of Employees
  10. Linux Testing Of The NVIDIA GeForce GTX 970
Latest Forum Discussions
  1. NVIDIA Presents Its Driver Plans To Support Mir/Wayland & KMS On Linux
  2. AMD Is Restructuring Again, Losing 7% Of Employees
  3. Bye bye BSD, Hello Linux: A Sys Admin's Story
  4. Open-Source AMD Fusion E-350 Support Takes A Dive
  5. Upgrade to Kaveri, very slow VDPAU performance
  6. ChromeOS Drops Support For EXT2/EXT3/EXT4 File-Systems
  7. Lennart Poettering On The Open-Source Community: A Sick Place To Be In
  8. The Slides Announcing The New "AMDGPU" Kernel Driver