I'm investigating tweaking my power consumption performance on Ubuntu. When I run Powertop, the output seems strange, and not much like any of the screenshots I see on the web. That might be explained by recent version changes, but one thing seems wrong: the critical "wakeups/second" figure is 0.0.. Can this be right?

Here's the 'Overview' output:

Summary: 0.0 wakeups/second,  0.0 GPU ops/second and 0.0 VFS ops/sec



            Usage Events/s Category Description

         24.1 ms/s       0.0        Process        /usr/lib/nspluginwrapper/i386/linux/npviewer.bin --plugin /usr/lib/flashplugin-

         10.8 ms/s       0.0        Process        /usr/lib/firefox-7.0.1/plugin-container /var/lib/flashplugin-installer/npwrappe

          9.3 ms/s       0.0        Process        /usr/bin/X :0 -auth /var/run/lightdm/root/:0 -nolisten tcp vt7 -novtswitch

          7.7 ms/s       0.0        Process        powertop

          5.2 ms/s       0.0        Process        /usr/bin/gnome-shell

          3.4 ms/s       0.0        Process        /usr/lib/firefox-7.0.1/firefox

          2.6 ms/s       0.0        Process        gnome-terminal

          1.9 ms/s       0.0        Interrupt      [47] i915

          1.9 ms/s       0.0        Timer          hrtimer_wakeup

          1.7 ms/s       0.0        Process        /usr/lib/udisks/udisks-daemon

 [etc, etc]

Idle stats as follows:

          Package   |             Core    |             CPU 0               CPU 1

POLL        0.0%    | POLL        0.0%    | POLL        0.0%    0.0 ms      0.0%    0.0 ms

C1-SNB      0.9%    | C1-SNB      1.2%    | C1-SNB      1.4%    0.4 ms      1.0%    0.4 ms

C3-SNB      0.5%    | C3-SNB      0.7%    | C3-SNB      0.8%    0.6 ms      0.6%    0.6 ms

C6-SNB      0.1%    | C6-SNB      0.1%    | C6-SNB      0.1%    0.6 ms      0.0%    0.8 ms

C7-SNB     96.0%    | C7-SNB     94.5%    | C7-SNB     93.7%    3.0 ms     95.4%    5.2 ms



                |             Core    |             CPU 2               CPU 3

                | POLL        0.0%    | POLL        0.0%    0.0 ms      0.0%    0.0 ms

                | C1-SNB      0.7%    | C1-SNB      0.6%    0.5 ms      0.7%    0.4 ms

                | C3-SNB      0.3%    | C3-SNB      0.2%    0.2 ms      0.4%    0.5 ms

                | C6-SNB      0.1%    | C6-SNB      0.0%    0.6 ms      0.1%    0.9 ms

                | C7-SNB     97.4%    | C7-SNB     97.6%    6.3 ms     97.2%    7.1 ms

Frequency stats show 0.0% for everything, and Device stats seem to have loads at 100%

          Usage     Device name

          5.7%        CPU use

         86.7%        Display backlight

         65.1%        Display backlight

        100.0%        USB device: xHCI Host Controller

        100.0%        USB Device: usb-device-8087-0024

        100.0%        PCI Device: Intel Corporation Centrino Advanced-N 6230

        100.0%        Radio device: Sony Notebook Control Driver

        100.0%        USB device: EHCI Host Controller

        100.0%        PCI Device: NEC Corporation uPD720200 USB 3.0 Host Controller

        100.0%        Radio device: iwlagn

        100.0%        PCI Device: Realtek Semiconductor Co., Ltd. RTS5116 PCI Express Card Reader

        100.0%        USB device: xHCI Host Controller

        [etc, etc]

So, my question is: is something wrong? I assume powertop is mis-reporting some things, right? I'm running on a Sony Vaio, and they're notorious for being difficult hardware for linux...