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 Benchmarking Platform
Phoromatic Test Orchestration

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 News
  1. NVIDIA's Proprietary Driver Is Moving Closer With Kernel Mode-Setting
  2. The Latest Linux Kernel Git Code Fixes The EXT4 RAID0 Corruption Problem
  3. Features Added To Mesa 10.6 For Open-Source GPU Drivers
  4. Ubuntu's LXD vs. KVM For The Linux Cloud
  5. Fedora Server 22 Benchmarks With XFS & The Linux 4.0 Kernel
  6. GCC 6 Gets Support For The IBM z13 Mainframe Server
  7. Fedora 22 Is Being Released Next Tuesday
  8. OpenWRT 15.05 Preparing Improved Security & Better Networking
  9. Using The New LLVM/Clang OpenMP Support
  10. Zapcc Claims To Be A "Much Faster C++ Compiler"
Latest Articles & Reviews
  1. Btrfs RAID 0/1 Benchmarks On The Linux 4.1 Kernel
  2. The State Of Various Firefox Features
  3. Intel Iris Graphics Performance With Mesa 10.6
  4. Fedora Workstation 22 Is Looking Great, Running Fantastic
Most Viewed News This Week
  1. The Linux 4.0 Kernel Currently Has An EXT4 Corruption Issue
  2. The Linux 4.0 EXT4 RAID Corruption Bug Has Been Uncovered
  3. AMDGPU Open-Source Driver Code Continues Maturing
  4. Microsoft Open-Sources The Windows Communication Foundation
  5. Another HTTPS Vulnerability Rattles The Internet
  6. LibreOffice 5.0 Open-Source Office Suite Has Been Branched
  7. Systemd 220 Has Finally Been Released
  8. Will Ubuntu Linux Hit 200 Million Users This Year?