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

ASUS Eee PC / Intel Atom: Disk Encryption Performance

Michael Larabel

Published on 6 September 2008
Written by Michael Larabel
Page 1 of 5 - 11 Comments

While the ASUS Eee PC 901 doesn't have its solid-state disk drives encrypted by default, if you are storing any potentially sensitive information on this netbook -- or any mobile device for that matter -- you really should encrypt the data. When you lose a mobile device or it has been stolen, it can be a nightmare if your banking information was stored on there or even just passwords to your Internet accounts. However, what is the performance cost for fully encrypting a hard drive on one of these Intel Atom computers? In this article we are looking at the performance impact of fully encrypting the solid-state storage versus an unencrypted LVM within Ubuntu Linux.

Starting with Ubuntu 7.10 was install-time encryption support. Through an option in Ubuntu's alternate CD installer, the user can opt to have their LVM fully encrypted (including the SWAP partition but without the boot partition) where to boot Ubuntu the user will need to supply their pass-phrase. If no password is supplied, the system cannot boot nor can the encrypted partitions even be read. This encryption support is provided by dm-crypt within Linux. Sadly, it has been a year though and the Ubuntu Ubiquity LiveCD installer has yet to integrate install-time encryption support. However, that is for another story.

Back in March we had delivered Ubuntu Linux Disk Encryption Benchmarks using Ubuntu 8.04 Alpha 6 on an AMD Athlon 64 X2 4200+ system. This dual-core test system had 2GB of DDR2 memory and a 160GB Serial ATA hard drive. In these tests we found the real-world performance impact to be minimal between no encryption and full disk encryption. However, this system is much more powerful than any Intel Atom system.

For our tests today we had used the ASUS Eee PC 901 and tested it with Ubuntu 8.10 Alpha 4 with all development updates as of August 29. These installed updates include the switch to the Linux 2.6.27 kernel. We had run our select disk tests with an unencrypted LVM and then again with the full-disk LVM encryption. The tests used were run within the Phoronix Test Suite 1.2.0 Beta 3 release and included Bonnie++, Flexible IO Tester, ImageMagick compilation, Tandem XML, SQLite, GnuPG file encryption, and Sunflow Rendering System.

The ASUS Eee PC 901 consists of an Intel Atom N270 (1.60GHz) single-core processor, Intel 945GME Express Graphics, 1GB of DDR2 memory, and Intel UMA graphics with a 1024 x 600 display. The two solid-state disks are detected as a 16GB and 4GB ASUS-PHISON SSD drives.

We offer guaranteed success in 70-433 exam using world’s best quality pass4sure 70-683 dumps plus 642-072 training courses.

<< Previous Page
1
Latest Linux Hardware Reviews
  1. Intel Launches The Core i7 5960X, Mighty Powerful Haswell-E CPUs
  2. AMD Radeon R9 290: Gallium3D vs. Catalyst Drivers
  3. AMD Radeon R9 290 Open-Source Driver Works, But Has A Ways To Go
  4. Trying The Configurable 45 Watt TDP With AMD's A10-7800 / A6-7400K
Latest Linux Articles
  1. The Fastest NVIDIA GPUs For Open-Source Nouveau With Steam Linux Gaming
  2. Testing For The Latest Linux Kernel Power Regression
  3. The Most Energy Efficient Radeon GPU For AMD Linux Gaming
  4. 20-Way Radeon Comparison With Open-Source Graphics For Steam On Linux Gaming
Latest Linux News
  1. Intel Beignet Is Working Out Surprisingly Well For OpenCL On Linux
  2. Coreboot Adds Lenovo X220 With Native Sandy Bridge Support
  3. Canonical Has Yet To Land X.Org Server 1.16 For Ubuntu 14.10
  4. Imagination Launches A MIPS Development Board
  5. Getting Involved With The New Raspberry Pi Graphics Driver
  6. A New AMD Catalyst Linux Driver Unofficially Surfaces
  7. LibreOffice Ported To 64-bit ARM (AArch64)
  8. Enlightenment E19 RC3 Shows Off The New Wayland Compositor
  9. Metro Redux Is Going To Require OpenGL 4.x On Linux
  10. Jailhouse v0.1 Released As A Basic Hypervisor For Linux
Latest Forum Discussions
  1. Btrfs Gets Talked Up, Googler Encourages You To Try Btrfs
  2. Updated graphics drivers for Ubuntu 12.04 Precise LTS
  3. Catalyst 14.201.1008
  4. It's Now Possible To Play Netflix Natively On Linux Without Wine Plug-Ins
  5. Users defect to Linux as OpenBSD removes Lynx from base system
  6. Updated and Optimized Ubuntu Free Graphics Drivers
  7. Canonical Joined The Khronos Group To Help Mir/Wayland Drivers
  8. Radeon HD5670 and Ubuntu 14.04