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

The Tests Showing Ubuntu 11.04 On A Power Consumption Binge

Michael Larabel

Published on 23 April 2011
Written by Michael Larabel
Page 4 of 7 - 19 Comments

The power consumption when the CPU and GPU were busy with the OpenArena game was also frightening. There are not results for Ubuntu 8.04.4 LTS since the open-source drivers for the R300 were not in a good state with the Hardy Heron, but as you can see, Ubuntu 11.04 is the biggest loser. The average power consumption is up by 21.3% with this latest release. This is rather disconcerting because that Intel EIST support in Linux has been settled for a while along with the KMS-based ATI Radeon power management support.

Here is a look at the OpenArena OpenGL performance. Interestingly, for this vintage ASIC the performance high-point was back in Ubuntu 8.10 and 9.04 when using user-space mode-setting and DRI1 prior to the Radeon DRM and Mesa switching to DRI2/KMS. With Ubuntu 11.10 the performance may be better based upon advancements in the Mesa 7.11-devel branch and also some forthcoming R300g improvements with the new register allocator, etc.

If looking at a composite of the power data for the ThinkPad T60, yep, Ubuntu 11.04 is definitely in poor shape in terms of power efficiency.

Latest Linux News
  1. Btrfs In Linux 4.2 Brings Quota Updates, Many Fixes
  2. Latest Rumor Pegs Microsoft Wanting To Buy AMD
  3. The Next-Gen Phoronix Site Experience Is Almost Ready
  4. Exciting Features Merged So Far For The Linux 4.2 Kernel
  5. Mesa 10.6.1 Brings A Bug-Fix For Dota 2 Reborn
  6. DragonFlyBSD 4.2 Released: Brings Improved Graphics & New Compiler
  7. Wine-Staging 1.7.46 Improves The OS X Experience
  8. The State & Complications Of Porting The Unity Editor To Linux
  9. Libreboot Now Supports An AMD/ASUS Motherboard
  10. SafeStack Merged Into LLVM To Protect Against Stack Buffer Overflow Attacks
Latest Articles & Reviews
  1. How KDE VDG Is Trying To Make Open-Source Software Beautiful
  2. Attempting To Try Out BCache On The Linux 4.1 Kernel
  3. CompuLab's Fitlet Is A Very Tiny, Fanless, Linux PC With AMD A10 Micro
  4. AMD A10-7870K Godavari: RadeonSI Gallium3D vs. Catalyst Linux Drivers
Most Viewed News This Week
  1. Kubuntu 15.10 Could Be The End Of The Road
  2. Linus Is Looking Forward To Merging KDBUS, But Not Convinced By Performance
  3. NVIDIA Starts Supplying Open-Source Hardware Reference Headers
  4. KDBUS Won't Be Pushed Until The Linux 4.3 Kernel
  5. Linux 4.2 Kernel Gets Port To New Processor Architecture
  6. The Staging Pull For Linux 4.2: "Big, Really Big"
  7. EXT4 Has Many Cleanups & Fixes For Linux 4.2
  8. SteamOS "Brewmaster" Is Valve's New Debian 8.1 Based Version