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

Ubuntu Linux Disk Encryption Benchmarks

Michael Larabel

Published on 16 March 2008
Written by Michael Larabel
Page 3 of 3 - 11 Comments

In the three Linux gaming benchmarks -- Enemy Territory, Doom 3, and Enemy Territory: Quake Wars -- the encrypted LVM had little impact on the frame-rate performance. In Doom 3 and ET: Quake Wars the frame-rate had dropped by just a couple frames when dm-crypt was in use. The biggest drop was with ET: Quake Wars, which equated to 2.9 frames or about a 10% drop in performance. When it came to encoding a WAV file to MP3 format with LAME and using Gzip compression on a 745MB file, the performance drop was small yet noticeable. In our last benchmark, which is the most disk intensive, which was copying 364 JPEG images amounting to 1.3GB in disk space from a Corsair Flash Voyager GT drive over to the hard drive, the performance cost of using an encrypted LVM was at about 7%.

Depending upon the situation, the performance impact of using dm-crypt will vary, but for mobile users with sensitive or just personal information, hard disk encryption is becoming a necessity and its benefits should out weigh the small performance impact. It's unfortunate that encryption support hasn't reached the Ubuntu Ubiquity LiveCD installer in time for Ubuntu 8.04 LTS, but hopefully it will be accomplished for Ubuntu 8.10. Ideally for this desktop encryption they will use Cryptsetup with LUKS support.

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. Scythe Mugen MAX
  2. Intel Core i7 5960X Haswell-E On Linux
  3. Intel 80GB 530 Series M.2 SSD On Linux
  4. With A New Motherboard, The Core i7 5960X Haswell-E Lights Up
Latest Linux Articles
  1. A Tour Of The New Phoronix Office
  2. 7-Way Linux Desktop Gaming Comparison On Ubuntu 14.10
  3. Intel P-State vs. CPUFreq Benchmarks On The i7-5960X
  4. RadeonSI GLAMOR Benchmarks With X.Org Server 1.16
Latest Linux News
  1. Linux 3.17-rc6 Released; Linux 3.17 Final Might Come In One Week
  2. X.Org Server 1.16.1 Released
  3. Mesa Gets Closer To Having OpenGL 4.0 Tessellation Support
  4. Uselessd: A Stripped Down Version Of Systemd
  5. F2FS Tools Gain FSCK Support
  6. FreeBSD 10.1 Has The New VT Driver, Hardware Improvements
  7. AntiMicro 2.6 Yields Greater Compatibility For Gamepads On Linux
  8. OpenGL 3.3 / GLSL 3.30 Lands For Intel Sandy Bridge On Mesa
  9. AMD's RadeonSI Gallium3D Driver Sees Some Improvements
  10. Mesa 10.3 Released With The Latest Open-Source GPU Driver Improvements
Latest Forum Discussions
  1. NVIDIA GTX 770/780 -works ?
  2. Wasteland 2 Officially Launched Today, Including For Linux Gamers
  3. Trolling on the Phoronix forums
  4. X.Org Women Outreach Program Only Turns Up Two Applicants So Far
  5. New stress testing utility for GPU's
  6. ASRock AM1H-ITX: One Of The Best AM1 Mini-ITX Motherboards
  7. Can Linux kill a motherboard?
  8. Stop grabbing my keyboard :(