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 12.04 Is A Mixed Power Story

Michael Larabel

Published on 4 April 2012
Written by Michael Larabel
Page 5 of 15 - 3 Comments

Next up are the results from the Lenovo ThinkPad W510 notebook with an Intel Core i7 "Clarksfield" processor and NVIDIA graphics. With this slightly older but still relevant notebook, we are able to go back to Ubuntu 10.04.4 LTS in the testing process.

Ubuntu 12.04 LTS is great for the ThinkPad W510 notebook when it comes to power usage. The idle power consumption with Ubuntu 12.04 on this Core i7 notebook is 20.7 Watts compared to 33.7 Watts in Ubuntu 11.10 or 27.3 Watts in Ubuntu 10.04 LTS. In Ubuntu 10.10, the idle power consumption was 22.1 Watts. The reasoning for the big improvement with Ubuntu 12.04 LTS compared to 11.xx and 10.04? It is due to the properly fixed PCI Express ASPM support. The proper PCI-E ASPM fix that was committed to the Linux 3.2 kernel is the biggest reason for the improvement, but as you can see it's even lower than Ubuntu 10.10 as the last release where ASPM was working on this hardware previously, so there's also some other optimizations too that drop the idle power use by over one Watt.

The Nouveau Gallium3D performance for the NVIDIA Quadro FX880M GPU is not any better in Ubuntu 12.04 LTS compared to Ubuntu 11.10, but the power consumption is lower by 7.5 Watts! This will lead to a significantly longer battery life. Releases before Ubuntu 11.10 could not be tested since Oneiric Ocelot was the first Ubuntu release shipping with the Nouveau Gallium3D driver by default to provide for OpenGL acceleration.

Latest Linux News
  1. VirtualBox 5.0 RC3 Brings VMM Fixes, Takes Care Of Some KDE DnD Problems
  2. Ubuntu Is Finally Fixing Its Annoying GRUB Setting
  3. Firefox 39.0 Brings New Features, HTML5 Changes
  4. OPNsense 15.7 Released As Fork Of Pfsense
  5. The Less-Powerful Intel Compute Stick With Ubuntu Will Soon Ship
  6. Kodi 15.0 Release Candidate 1 Arrives
  7. Fedora 23: Python 3 Default Approved; Netizen Spin Rejected
  8. GNOME Shell & Mutter Just Landed More Wayland Improvements
  9. Ubuntu MATE Announces A Partnership With A PC Hardware Vendor
  10. Linux 4, GCC v. Clang & Vulkan Were Among The Hot Stories So Far This Year
Latest Articles & Reviews
  1. 6-Way File-System Comparison On The Linux 4.1 Kernel
  2. How KDE VDG Is Trying To Make Open-Source Software Beautiful
  3. Attempting To Try Out BCache On The Linux 4.1 Kernel
  4. CompuLab's Fitlet Is A Very Tiny, Fanless, Linux PC With AMD A10 Micro
Most Viewed News This Week
  1. Kubuntu 15.10 Could Be The End Of The Road
  2. KDBUS Won't Be Pushed Until The Linux 4.3 Kernel
  3. Pinos Is For Linux Video What PulseAudio Is For Audio
  4. The State & Complications Of Porting The Unity Editor To Linux
  5. The Staging Pull For Linux 4.2: "Big, Really Big"
  6. Latest Rumor Pegs Microsoft Wanting To Buy AMD
  7. "PulseVideo" Coming To Complement PulseAudio?
  8. Exciting Features Merged So Far For The Linux 4.2 Kernel