Comment 11 for bug 760131

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Sascha K. B. (saschakb) wrote :

This regression is not only in Ubuntu. I'm running Archlinux - and for me - the regression takes also part in the Archkernel 2.6.38.x and the Liquorix Kernel 2.6.38.x.
The wakeups per second raise up to 1297/second, mostly via ehci_hcd:usb1... ehci_hcd:usbx, brcm80211 and ahci interrupts, keyboard, mousepad, touchpad interrupt.
The Turbo mode (2,31 GHz on my machine) uses up to 42.9% in idle mode, while except for 1% the rest goes to my 800 MHz powersaving mode. Even when being only in tty - and doing nothing, the cpu shows me that it uses 20% (instead of 1% in 2.6.32).
The battery of my Compaq CQ56 has only 2 hours on Kernel 2.6.38/2.6.39, while it has 3 hours on Kernel 2.6.32.x

With kernel 2.6.32.39 I'm down on 67 wakeups per second.