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 12.04 Is A Mixed Power Story

Michael Larabel

Published on 4 April 2012
Written by Michael Larabel
Page 1 of 15 - 3 Comments

Similar to the mixed boot performance results for Ubuntu 12.04, the power consumption results are also mixed. For some hardware, Ubuntu 12.04 is the most power efficient Ubuntu Linux release in recent history while for some other hardware the Precise Pangolin is continuing in a power binge.

Following my warning last week of On Old Hardware, Think Twice About Ubuntu 12.04 and then If You're Lucky, Ubuntu 12.04 LTS Can Boot Faster, up now is my latest look at the Ubuntu 12.04 power consumption numbers from a Precise Pangolin snapshot taken after the beta two freeze. There is also some performance benchmarks in this article to correlate against the power consumption differences.

The power consumption is one of the areas that Canonical engineers were paying special attention to for the 12.04 LTS cycle after the very notorious and widely reported Linux power consumption problems of 2011. Read How Ubuntu 12.04 Is Trying To Drop Power Usage for some additional context and my many power regression articles.

This power consumption testing is being done from the line-up of notebooks used in the boot articles. Unfortunately the USB-based power meter normally used for the desktop/workstation power measurements is currently having issues on Linux 3.2+ kernels, so for this article it's just a mobile-focused power consumption look while running on battery power. All testing and monitoring was done using the Phoronix Test Suite with OpenBenchmarking.org serving as the collaborative back-end.

First up are the results from the HP EliteBook with an Intel Core i5 Sandy Bridge CPU.

<< Previous Page
1
Latest Linux Hardware Reviews
  1. AMD's New Athlon/Semprons Give Old Phenom CPUs A Big Run For The Money
  2. 13-Way Low-End GPU Comparison With AMD's AM1 Athlon
  3. ASUS AM1I-A: A Mini-ITX Board For Socketed Kabini APUs
  4. Mini-Box M350: A Simple, Affordable Mini-ITX Case
Latest Linux Articles
  1. How Much Video RAM Is Needed For Catalyst R3 Graphics?
  2. Ubuntu 12.04 LTS vs. 14.04 LTS Cloud Benchmarks
  3. Ubuntu 12.04.4 vs. 13.10 vs. 14.04 LTS Desktop Benchmarks
  4. AMD OpenCL Performance With AM1 Kabini APUs
Latest Linux News
  1. Oracle Linux 6.5 vs. Oracle Linux 7.0 Beta Benchmarks
  2. Easter Yields The Linux 3.15-rc2 Kernel Release
  3. The Most Amazing OpenGL Tech Demo In 64kb
  4. Packard Bell LM85 Now Supported By Coreboot
  5. AmazonBasics External USB 2.0 DVD Writer For Linux
  6. TP-LINK TG-3468: A $12 Linux PCI-E Gigabit Network Adapter
  7. Linux 3.15 Lands Some DRM Graphics Driver Fixes
  8. AMD Is Disabling DPM Support For RV770 GPUs
  9. ReactOS Working On A Community Windows OS
  10. eRacks Keeps Pushing Linux, Open-Source Systems After 15 Years
  11. Borderlands Is Being Considered For Linux
  12. Mesa 10.0 & 10.1 Stable Get Updated
Latest Forum Discussions
  1. The GNOME Foundation Is Running Short On Money
  2. Updated and Optimized Ubuntu Free Graphics Drivers
  3. Catalyst 14.3 Beta
  4. Suggestions about how to make a Radeon HD 7790 work decently?
  5. Radeon 8000M problematic on Linux?
  6. Linux Kernel Developers Fed Up With Ridiculous Bugs In Systemd
  7. After Jack Keane, RuseSoft will briing Ankh 3 to Linux through Desura
  8. Suspected PHP Proxy Issue