Skip navigation
This discussion is archived

SystemUIserver using 90+% of CPU

44033 Views 106 Replies Latest reply: Nov 1, 2009 9:04 PM by nemodomi RSS
1 2 3 ... 8 Previous Next
B Summers Level 1 Level 1 (0 points)
Currently Being Moderated
Oct 31, 2009 8:31 PM
I was browsing the web, minding my own business... when I noticed the fans were running high.
Thinking it was Flash, I closed Firefox. But the fans were still running at max.

Popped open Activity Monitor - and SystemUIServer was running 80-95% of my CPU, and Dock was using a fair bit too.

Reboot did nothing. Ran a set of clean-up tools through Cocktail, as well as repairing of permissions. Nothing still.

Can't explain what's going on. I haven't changed anything, not doing anything... and SystemUIServer is hogging the CPU.
MacBook Pro 15" (2,2), Mac OS X (10.6.1), 2.33GHz, 2GB RAM, 160GB HD ~~ iPhone 3G 16GB ~~ 5th-gen iPod 30GB
  • K T Level 7 Level 7 (23,215 points)
    Currently Being Moderated
    Oct 31, 2009 8:38 PM (in response to B Summers)
    Search is your friend...
    Intel iMac, Mac OS X (10.6.1), OLED Pano
  • Bighouse Level 1 Level 1 (0 points)
    Currently Being Moderated
    Oct 31, 2009 11:01 PM (in response to K T)
    I'm also having this same problem and just when I started to type a reply it magically went away! So weird.. don't understand what did this.. i did just install the performance update.. maybe it was running something in the background?
    Macbook Pro, Mac OS X (10.5.6)
  • kokho Calculating status...
    Currently Being Moderated
    Oct 31, 2009 11:31 PM (in response to B Summers)
    I had this problem too, just noticed it tonight.
    In fact, it seemed to happen suspiciously close to the Daylight Savings time switchover.
    So I turned off the "Show date and time in menu bar" and voila, no more SystemUIserver CPU craziness.
    However, I can now no longer have the time/date showing in the menubar, because once I put it back, SystemUIserver goes to 90% again, even after multiple restarts.

    I sincerely hope this is not a Daylight savings time bug

    Edit: I also notice that just being on the first tab (Date & Time) of the Date & Time pref.pane causes CPU to be 95%+ as well. I think signs point to some system clock issue.

    Message was edited by: kokho
    Macbook (Black), Mac OS X (10.6.1)
  • Br0wNb0y Calculating status...
    Currently Being Moderated
    Oct 31, 2009 11:33 PM (in response to B Summers)
    Yup I'm having the same problems. I disabled the time and date from showing up on the menubar and problem solved.

    Has to be a time bug.

    Today ***** because it took me an entire day to upgrade to Snow Leopard because of the "Dirty disc" issue that so many people were having and now I'm greeted with this minor bug
    Macbook Pro 13", Mac OS X (10.6.1)
  • drizztmainsword Level 1 Level 1 (5 points)
    Currently Being Moderated
    Oct 31, 2009 11:34 PM (in response to B Summers)
    Aye. I've got the same problem. I can confirm that removing date and time from the menu bar drops everything back down to normal.
    MacBook Pro 2.0 ghz, Mac OS X (10.5.2)
  • smthopr8tr Level 1 Level 1 (0 points)
    Currently Being Moderated
    Oct 31, 2009 11:34 PM (in response to B Summers)
    Seeing the same behavior here until I removed "Show date and time in menubar option". Looks like it has to be a DST issue.
    Unibody Macbook Pro, Mac OS X (10.6.1)
  • silvervelocity Calculating status...
    Currently Being Moderated
    Oct 31, 2009 11:36 PM (in response to Br0wNb0y)
    I did the same thing i guess its DLS, but its a pain not having the time show up. They should really fix this its like Y2K or something.

    Message was edited by: silvervelocity
    Mabook Pro, Mac OS X (10.6.1)
  • showprolights Calculating status...
    Currently Being Moderated
    Oct 31, 2009 11:35 PM (in response to B Summers)
    This was worse for me... FULL CPU USAGE! Both cores are in full use!

    launchd average 80%
    syslogd average 30%
    and SystemUIServer average 60%

    Initially, when the East Coast went from DST back to EST, the SystemUIServer went to 100% CPU Usage for not even a minute.
    Macbook Pro, Mac OS X (10.6)
  • chip911 Level 1 Level 1 (0 points)
    Currently Being Moderated
    Oct 31, 2009 11:36 PM (in response to smthopr8tr)
    same issue here...

    removed the date and time...problem gone...
    Macbook Unibody, Mac OS X (10.6.1), 2.0GHz, 4GB
  • mcshade311 Level 1 Level 1 (0 points)
    Currently Being Moderated
    Oct 31, 2009 11:36 PM (in response to B Summers)
    haha...are you kidding me, i am having the same problem. how did you figure out that turning off the show date time would fix this problem. i did the same thing, and it worked. Hopefully tomorrow i'll be able to turn it back on. i just can't believe that my mbp is getting so excited about daylight saving time.
    13" MBP, 24" iMac, Mac OS X (10.6.1)
  • kousuke18 Calculating status...
    Currently Being Moderated
    Oct 31, 2009 11:37 PM (in response to B Summers)
    o wow now that you guys mention it... my cpu usage has spiked to 100% ever since the dst change. The systemUIserver process is going crazy.
    Unibody 2.53ghz Macbook Pro 9600m GT, Mac OS X (10.5.4)
1 2 3 ... 8 Previous Next

Actions

More Like This

  • Retrieving data ...

Bookmarked By (0)

Legend

  • This solved my question - 10 points
  • This helped me - 5 points
This site contains user submitted content, comments and opinions and is for informational purposes only. Apple disclaims any and all liability for the acts, omissions and conduct of any third parties in connection with or related to your use of the site. All postings and use of the content on this site are subject to the Apple Support Communities Terms of Use.