Ubuntu11.10 system energy consumption: up to 50%

For all operating systems, energy consumption is worth noting. For Linux, by extending the battery life, low energy consumption can improve its competitiveness in the PC and server fields for Windows and reduce the cost of electricity. However, it seems that the Linux energy consumption problem has always existed. Previously, phoronix.com tested the power consumption of various application environments on Ubuntu11.04 and Windows7 systems, the energy consumption of Ubuntu11.04 is due to the improvement of a PCIExpress active state. For all operating systems, the energy consumption is worth noting. For Linux, by extending the battery life, low energy consumption can improve its competitiveness in the PC and server fields for Windows and reduce the cost of electricity. However, it seems that the Linux energy consumption problem has always existed. Previously, phoronix.com tested the power consumption of various application environments on Ubuntu 11.04 and Windows 7 systems, ubuntu 11.04 energy consumption is caused by an increase in PCI Express active state power management (ASPM.

Because the PCI Express ASPM problem has not been improved, the energy consumption problem of Ubuntu 11.04 system continues to the next generation Ubuntu 11.10 system, and the energy consumption problem is more obvious in Ubuntu 11.10 system, it seems to be getting worse and worse.

Comparison of energy consumption between Ubuntu 11.10 and Ubuntu 11.04

Recently, the phoronix.com website uses three different PCs to install Ubuntu 11.04 and Ubuntu 11.10 systems for energy consumption comparison. The energy consumption of Ubuntu 11.10 tested by all three PCs is surprisingly high. For Intel Core 2 Duo T9300 and NVIDIA graphics card testing platforms, Ubuntu 11.10 is more than 10% on average. For netbooks that use Intel Atom 330 processors and ION graphics cards, energy consumption increases by 4%.

On intel Sandy Bridge's latest platform, 11.10 of the energy consumption of Ubuntu increased by 52%. It can be said that the Ubuntu 11.10 system, which greatly shortens the battery life, has not even reached the kernel 2.6.38 level before Ubuntu10.10 compared with Ubuntu 11.04.