nycradik

Q: Safari 10 High CPU Usage

Safari 10.0 (12602.1.50.0.10) on macOS Sierra (16A323) ramps up to 200% CPU usage per Activity Monitor in a few seconds.  Both the Safari and the web content processes show at this high level.  Opening a second tab (even a blank one) will use another 200% until the CPU is full, after which the per-tab web content process CPU share drops to fit them all in and the CPU stays maxed out.  The specific web page does not seem to matter at all.

 

The computer is a mid-2012 Retina MBP, 2.3 GHz i7 with 8 GB ram.

 

Please tell me that I'm not the only one seeing this, thanks!

MacBook Pro with Retina display, macOS Sierra (10.12), 2.3 GHz i7, 8 GB ram

Posted on Sep 21, 2016 5:54 PM

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Q: Safari 10 High CPU Usage

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  • by gtmuniversal,Solvedanswer

    gtmuniversal gtmuniversal Sep 22, 2016 5:28 PM in response to nycradik
    Level 1 (24 points)
    Mac OS X
    Sep 22, 2016 5:28 PM in response to nycradik

    See here: http://www.trusteer.com/support/uninstalling-rapport-mac-os-x

     

    Download the .dmg file linked on this page (there will be a link in the banner at the top of the page saying "click here to update Rapport for Mac" – if there is a message relating to Windows computers instead, just wait a few seconds for the banner to change back to displaying the link for Mac users).

     

    Then open the .dmg file after it has downloaded and run the "Uninstall Rapport" tool from the window that appears.

     

    Hope this helps!

  • by nycradik,

    nycradik nycradik Sep 23, 2016 10:48 PM in response to gtmuniversal
    Level 1 (6 points)
    Safari
    Sep 23, 2016 10:48 PM in response to gtmuniversal

    That was perfect, thanks!

  • by usr555,

    usr555 usr555 Sep 26, 2016 5:12 AM in response to nycradik
    Level 1 (4 points)
    Sep 26, 2016 5:12 AM in response to nycradik

    You are not the only one.  I have your same machine, and it's worst with Safari, but the CPU heat is also elevated when I use Firefox.  I haven't tried Chrome.

  • by Eric Root,

    Eric Root Eric Root Sep 26, 2016 5:56 AM in response to usr555
    Level 9 (73,322 points)
    iTunes
    Sep 26, 2016 5:56 AM in response to usr555

    You might want to consider starting a new discussion. Since this one is marked solved, less people are likely to look at it. A new post would be much more visible. You can link to this one.

     

    Try running this program in your normal account and post it in a new reply. The program was created by Etresoft, a frequent contributor.  Please use copy and paste as screen shots can be hard to read. On the screen with Options, please open Options and check the bottom 2 boxes before running. Click “Share Report” button in the toolbar, select “Copy to Clipboard” and then paste into a reply. This will show what is running on your computer. No personal information is shown.
      

    Etrecheck – System Information

  • by jtowriss,

    jtowriss jtowriss Sep 29, 2016 11:21 PM in response to gtmuniversal
    Level 1 (4 points)
    Sep 29, 2016 11:21 PM in response to gtmuniversal

    I did this and it immediately solved the cpu usage problem I was having with Safari.  Thank you.

  • by HPDoor,

    HPDoor HPDoor Oct 5, 2016 12:31 AM in response to gtmuniversal
    Level 1 (4 points)
    Oct 5, 2016 12:31 AM in response to gtmuniversal

    That did the trick ! Thanks.

  • by max Hatfield,

    max Hatfield max Hatfield Oct 8, 2016 12:46 AM in response to nycradik
    Level 1 (4 points)
    Oct 8, 2016 12:46 AM in response to nycradik

    I had ther same issue.

    After upgrading to MacOS Sierra on my iMac 4k 21ich, when i started safari, the CPU maxed out!!

     

    I uninstalled the ad blocker extension.

     

    I was told my support to start in safe mode (restart Mac by holding the SHIFT key).

    I started safari , it seemed ok, so i restarted normally and after watching safari max the CPU out, within a minute it resolved itself.

    max

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