Language Selection

English French German Italian Portuguese Spanish

The Tests Showing Ubuntu 11.04 On A Power Consumption Binge

Filed under
Ubuntu

Though as the Phoronix Test Suite stack is presently bisecting and analyzing the kernel during the period in question (Linux 2.6.37 to 2.6.38), this article is being published now and hopefully on Easter Sunday or Monday the actual offending commit will be known along with much more information. This bug has also now been confirmed independent of Phoronix by at least six separate parties that I'm aware of, with reports of Natty either consuming excessive power or a very significant increase in heat output compared to Ubuntu 10.10. These independent reports have occurred on a range of hardware -- including desktops. There is also at least one bug report on the matter for Ubuntu 11.04.

Ubuntu 11.04 "Natty Narwhal" is set to be released on Thursday and while there are a number of new features to talk about in this latest release, the Phoronix Test Suite software has been busy analyzing the performance of this latest release. There is open-source graphics driver improvements leading to some performance improvements (such as Radeon KMS page-flipping), the famous ~200 line Linux kernel patch to improve responsiveness, and various other enhancements that catch our fancy in Ubuntu 11.04. However, one area where there is a frightening regression in Ubuntu 11.04 is with its power consumption. For mobile devices in many workloads, Ubuntu 11.04 is consuming noticeably more power than in any of the past Ubuntu Linux releases. Sadly, no one seems to have noticed in time since continuous integration testing on Linux seems to happen so haphazardly right now.

rest here




More in Tux Machines

today's leftovers

US Military To Launch Open Source Academy

Open source software, which has become increasingly common throughout the US military from unmanned drones to desktops, has now been enlisted as a career option for military personnel. In September, Camp Shelby Joint Forces Training Center will open a Linux certification academy, marking the first time such a training program has been hosted on a military base. Read more

Video: TedX talk - Richard Stallman

Well, vp9/opus in a webm container have been supported by both Firefox and Google Chrome for several releases now... so enjoy it in your web browser. Read more

Eclipse Luna for Fedora 20

If you are a Fedora Eclipse user, then you're probably saddened since the release of Eclipse Luna (4.4) because you are still using Eclipse Kepler (4.3) on Fedora 20. Well, be saddened no longer because Eclipse Luna is now available for Fedora 20 as a software collection! A software collection is simply a set of RPMs whose contents are isolated from the rest of your system such that they do not modify, overwrite or otherwise conflict with anything in the main Fedora repositories. This allows you install multiple versions of a software stack side-by-side, without them interfering with one another. More can be read about this mechanism on the software collections website. The Eclipse Luna software collection lives in a separate yum repository, which must be configured by clicking on this link to install the release package. Read more