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. ASUS AM1I-A: A Mini-ITX Board For Socketed Kabini APUs
  2. Mini-Box M350: A Simple, Affordable Mini-ITX Case
  3. Overclocking The AMD AM1 Athlon & Sempron APUs
  4. AMD Athlon 5350 / 5150 & Sempron 3850 / 2650
Latest Linux Articles
  1. Ubuntu 12.04.4 vs. 13.10 vs. 14.04 LTS Desktop Benchmarks
  2. AMD OpenCL Performance With AM1 Kabini APUs
  3. A Quick Look At GCC 4.9 vs. LLVM Clang 3.5
  4. Are AMD Athlon/Sempron APUs Fast Enough For Steam On Linux?
Latest Linux News
  1. The Improv ARM Board Still Isn't Shipping; Riding A Dead Horse?
  2. Debian To Maintain 6.0 Squeeze As An LTS Release
  3. Wasteland 2 Is Finally Released For Linux Gamers
  4. FreeBSD Advances For ARM, Bhyve, Clang
  5. Ubuntu 14.04 LTS "Trusty Tahr" Officially Released
  6. Ubuntu 12.04 LTS vs. 14.04 LTS Server Benchmarks
  7. QEMU 2.0 Released With ARM, x86 Enhancements
  8. Running The Unity 8 Preview Session On Ubuntu 14.04 LTS
  9. R600 Gallium3D Disables LLVM Back-End By Default
  10. Fedora 21 Gets GNOME 3.12, PHP 5.6, Mono 3.4
  11. Fedora Workstation Is Making Me Quite Excited
  12. Maynard: A Lightweight Wayland Desktop
Latest Forum Discussions
  1. The GNOME Foundation Is Running Short On Money
  2. Updated and Optimized Ubuntu Free Graphics Drivers
  3. Radeon 8000M problematic on Linux?
  4. Linux Kernel Developers Fed Up With Ridiculous Bugs In Systemd
  5. After Jack Keane, RuseSoft will briing Ankh 3 to Linux through Desura
  6. Suspected PHP Proxy Issue
  7. Change installation destination from home directory
  8. Bye bye BSD, Hello Linux: A Sys Admin's Story