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  1. #1


    Member Since
    Jan 05, 2011
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    % user in the activity monitor. What does it mean ?
    Hi all,

    Lately my battery life has been slashed by two, and I think it is probably a software problem (the guy I talked to at apple thinks so too)

    Something I've noticed in my activity monitor is that the number next to "% user" is vey high (between 50 and 60) and I think this is why my battery life is so low. Does anyone know what the value "% user" means ?

    Screenshot of my activity monitor : Untitled - Minus
    Thanks for reading

  2. #2

    vansmith's Avatar
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    It may or may not be excessively high. What are you running? Sort your processes by CPU usage and work from there.
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  3. #3

    pigoo3's Avatar
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    May 20, 2008
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    2011 13" MBP 2.3ghz, 8gig ram, OS 10.8.5
    Quote Originally Posted by dekox View Post
    Something I've noticed in my activity monitor is that the number next to "% user" is vey high (between 50 and 60) and I think this is why my battery life is so low. Does anyone know what the value "% user" means ?
    For what it's worth...my "% User" is currently between 16-18% (with only Safari & Mail open).

    What I would suggest is:

    - restart your computer
    - don't launch any other applications other than "Activity Monitor"
    - check the "% User"
    - let us know what the value is

    This way we have a "base value" to start from.

    - Nick

    p.s. I just started playing an online game...and % User jumped to 55% while launching the game...and 35-42% while playing.
    - Too many "beachballs", read this: Beachballs
    - Computer seems slower than it used to? Read this for some slow computer tips: Speedup
    - Almost full hard drive? Some solutions. Out of Space
    - Apple Battery Info. Battery

  4. #4

    pigoo3's Avatar
    Member Since
    May 20, 2008
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    Specs:
    2011 13" MBP 2.3ghz, 8gig ram, OS 10.8.5
    Wanted to add this link as well:

    MPG - Mac Performance 101: Cores, Processes, Memory - Observing system performance with Activity Monitor

    Notice in the graphic (around the middle of the article) is % User is 93%! Basically is seems...the busier the computer...the higher the % User.

    So when running a laptop on battery power...the fewer the processes you have going on at the same the better (in other words)...doing just one thing might be better (given your battery runtime cut in half experience).

    In other words:

    - listening to mp3's
    - watching a video
    - playing an internet game
    - downloading a file
    - "tweeting" a friend
    - etc.

    Probably isn't great for max. battery life!

    - Nick
    - Too many "beachballs", read this: Beachballs
    - Computer seems slower than it used to? Read this for some slow computer tips: Speedup
    - Almost full hard drive? Some solutions. Out of Space
    - Apple Battery Info. Battery

  5. #5


    Member Since
    Jan 05, 2011
    Posts
    8
    50-60 without anything else running.
    This appeared right after installing an all in one printer from Canon. Doing some further research, I discovered somebody else who had the same problem because of a wifi printer's driver. I think this is probably the problem. Does anybody know how I can uninstall it, knowing that I don't have the install disk?

  6. #6


    Member Since
    Jan 05, 2011
    Posts
    8
    Yeah, it was the printer driver. put the canon file in library/printer restarted, and now it works like a charm again. Seriously, how can they make us install a crappy driver like that ? And how am I going to use my printer now ?

  7. #7

    pigoo3's Avatar
    Member Since
    May 20, 2008
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    Specs:
    2011 13" MBP 2.3ghz, 8gig ram, OS 10.8.5
    Quote Originally Posted by dekox View Post
    Yeah, it was the printer driver. put the canon file in library/printer restarted, and now it works like a charm again. Seriously, how can they make us install a crappy driver like that ? And how am I going to use my printer now ?
    Awesome...thanks for letting us know that the printer driver was the problem...and removing it was the solution!

    - Nick
    - Too many "beachballs", read this: Beachballs
    - Computer seems slower than it used to? Read this for some slow computer tips: Speedup
    - Almost full hard drive? Some solutions. Out of Space
    - Apple Battery Info. Battery

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