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. Even With Re-Clocking, Nouveau Remains Behind NVIDIA's Proprietary Linux Driver
  2. The Power Consumption & Efficiency Of Open-Source GPU Drivers
  3. AMD R600g/RadeonSI Performance On Linux 3.16 With Mesa 10.3-devel
  4. Intel Pentium G3258 On Linux
Latest Linux Articles
  1. AMD Catalyst 14.6 Does Slightly Better With APITest OpenGL Tests
  2. Updated Source Engine Benchmarks On The Latest AMD/NVIDIA Linux Drivers
  3. Nouveau vs. Radeon vs. Intel Tests On Linux 3.16, Mesa 10.3-devel
  4. KVM Benchmarks On Ubuntu 14.10
Latest Linux News
  1. Belkin's WRT54G Router Successor Is Crap On The Software Front So Far
  2. QEMU 2.1 Officially Released
  3. XBMC Is Being Renamed To "Kodi"
  4. SteamOS Beta 126 Better Handles XBMC
  5. Ubuntu 14.10 Alpha 2 Released
  6. KDE 4.14 Release Candidate Ships
  7. Drivers & Drama Dominated Linux Talk In July
  8. Fedora Assembles A Security Team
  9. AMD Launches The A10-7800, The 65 Watt Kaveri
  10. Builder: A New Development IDE Being Built For GNOME
Latest Forum Discussions
  1. AMD Launches The A10-7800, The 65 Watt Kaveri
  2. Grand Theft Auto Running On Direct3D Natively On Linux Shows Gallium3D Potential
  3. Updated and Optimized Ubuntu Free Graphics Drivers
  4. Linus Torvalds On GCC 4.9: Pure & Utter Crap
  5. Updated graphics drivers for Ubuntu 12.04 Precise LTS
  6. Debian + radeonsi
  7. AMD Publishes Open-Source Linux HSA Kernel Driver
  8. Open-source drivers on ATI R7 260X