Am I insane? (kernel_task CPU usage)

Discussion in 'MacBook Pro' started by justaregularjoe, Feb 21, 2011.

  1. justaregularjoe macrumors 6502

    Nov 28, 2008
    Problem that has been bothering me for a while now...

    The kernel_task process seems to be using an unnecessary amount of CPU power. Doing *nothing* (all applications closed, just watching Activity Monitor) TOTAL System Idle is above 95%, as I would expect.

    Turning on an episode of Futurama, an animated show (SD, MPEG-4 Xvid AVI with AC3 audio) causes kernel_task to hover between 15% and 20% consistantly, and VLC right around 10%.

    So, 25% to 30% CPU usage (note the specs in the sig) to watch SD animated television. Results are identical with episodes of recent sitcoms, and various other media files.

    Am I insane, or is this totally unacceptable?

  2. mulo macrumors 68020


    Aug 22, 2010
    Behind you
  3. justaregularjoe thread starter macrumors 6502

    Nov 28, 2008
    ...not sure if srs.

    In any case, the same problems occur with all files no matter the container. I tried multiple codecs, bitrates, genres, etc and the problem is fairly universal. Between around 25 and 30% CPU usage to watch my SD media.

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