Ubuntu
linux package

  1. Bug #760131
  2. Comment #94

Comment 94 for bug 760131

Revision history for this message
Salih EMIN (salih-emin) wrote :

I run some PowerTop tests on 5 kernels (the full results are in the attached file) on Ubuntu 11.04 (Dell Studio 1557)
In summary:
-------------------------------------------------------------------------
Kernel 2.6.38-10 (from Pre-released repositories)

Wakeups-from-idle per second : 54.2 interval: 1.4s
Power usage (ACPI estimate): 1.4W (2.9 hours)
-------------------------------------------------------------------------
Kernel 2.6.38-9-generic [NO fglrx ATI driver] (the patched one mentioned here in launchpad at #70 )

Wakeups-from-idle per second : 39.5 interval: 3.0s
Power usage (ACPI estimate): 2.2W (1.8 hours)
-------------------------------------------------------------------------
Kernel 2.6.38-8-generic (The natty default linux kernel)

Wakeups-from-idle per second : 50.6 interval: 3.0s
Power usage (ACPI estimate): 2.2W (1.7 hours)
-------------------------------------------------------------------------
Kernel 2.6.34-020634-generic (from kernel ppa mainline - lucid)

Wakeups-from-idle per second : 57.7 interval: 15.0s
Power usage (ACPI estimate): 1.5W (1.9 hours) (long term: 1.6W,/1.7h)
------------------------------------------------------------------------
kernel 2.6.32-0206324118-generic (from kernel ppa mainline - lucid)

Wakeups-from-idle per second : 76.7 interval: 15.0s
Power usage (ACPI estimate): 4.1W (0.5 hours)
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