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. NVIDIA GeForce GTX 970 Offers Great Linux Performance
  2. CompuLab Intense-PC2: An Excellent, Fanless, Mini PC Powered By Intel's i7 Haswell
  3. From The Atom 330 To Haswell ULT: Intel Linux Performance Benchmarks
  4. AMD Radeon R9 285 Tonga Performance On Linux
Latest Linux Articles
  1. 6-Way Ubuntu 14.10 Linux Desktop Benchmarks
  2. Ubuntu 14.10 XMir System Compositor Benchmarks
  3. Btrfs RAID HDD Testing On Ubuntu Linux 14.10
  4. Ubuntu 14.10 Linux 32-bit vs. 64-bit Performance
Latest Linux News
  1. GTK+ Lands Experimental Backend For Mir Display Server
  2. Ubuntu 14.10 Officially Released
  3. Mesa 10.4 Might Re-Enable HyperZ For R600g/RadeonSI
  4. Intel GVT-g GPU Virtualization Moves Closer
  5. GTK+ 3.16 To Bring Several New Features
  6. Debian 8.0 Jessie Has Many Multimedia Improvements
  7. What Linux Benchmarks Would You Like To See Next?
  8. Open-Source, Linux Support For Corsair Link Devices Slowly Materializing
  9. Cairo-Dock 3.4 Shows A Lot Of Progress, Works Toward EGL/Wayland Support
  10. Mesa 10.4 Tentatively Planned For Early December
Latest Forum Discussions
  1. Linux hacker compares Solaris kernel code:
  2. Advertisements On Phoronix
  3. HOPE: The Ease Of Python With The Speed Of C++
  4. Updated and Optimized Ubuntu Free Graphics Drivers
  5. Users/Developers Threatening Fork Of Debian GNU/Linux
  6. Ubuntu 16.04 Might Be The Distribution's Last 32-Bit Release
  7. AMD Releases UVD Video Decode Support For R600 GPUs
  8. Proof that strlcpy is un-needed