Lagging when scrolling up/down the webpage

Discussion in 'OS X El Capitan (10.11)' started by blago, Aug 3, 2016.

  1. blago, Aug 3, 2016
    Last edited: Aug 3, 2016

    blago macrumors newbie

    Joined:
    Aug 3, 2016
    Location:
    Russia
    #1
    I'm tired of permanent safari freezes, which have occurred after moving on El Capitan. Mac will just freeze for a few seconds when I scroll up/down. Didn't experience that problem on Yosemite. So would like to know is there any way to downgrade to Yosemite? My mac came with pre installed Yosemite, but cannot find it in "Purchase" section in Appstore
     
  2. Shirasaki macrumors 603

    Shirasaki

    Joined:
    May 16, 2015
    #2
    Then you should be able to revert to it by starting an Internet Recovery. This will download the Mac OS X shipping with your system, which in your case, is Yosemite.

    Be sure to backup data though.
     
  3. KALLT macrumors 601

    Joined:
    Sep 23, 2008
    #3
    To be more specific, you have to hold option–command–R immediately after the boot tone to enter Internet Recovery.

    There is no way to ‘downgrade’. You can only format the disk, install the OS and then manually import the data again. Importing with Migration Assistent may not work.
     
  4. blago thread starter macrumors newbie

    Joined:
    Aug 3, 2016
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    Russia
    #4
    Thank u guys! I installed Yosemite. But my mac is still laggy even with 16GB Ram and Iris 6100.
     
  5. rshrugged macrumors 6502a

    Joined:
    Oct 11, 2015
    #5
    If you're more descriptive with what you mean by "my mac is still laggy", someone might be able to help you. What are the specific behaviors?
    Also add a more complete list of your machine specs.
    Are you using any security software, etc.?
    Help others to be able to assist you. Good luck.
     
  6. robeddie macrumors 68000

    robeddie

    Joined:
    Jul 21, 2003
    Location:
    Atlanta
    #6
    Yea, this would tend to suggest that it wasn't el captian that was at fault in the first place. As the poster above asked, what are the specific symptoms of this 'lagginess'?
     
  7. blago thread starter macrumors newbie

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    Aug 3, 2016
    Location:
    Russia
    #7
    For example, when I open http://www.apple.com/uk/macos/sierra-preview/ it will lag when scrolling up and down. On some other websites it will freeze for 3-4 seconds when scrolling up/down.
     
  8. rshrugged macrumors 6502a

    Joined:
    Oct 11, 2015
    #8
    Download and install the free app EtreCheck. After running it, post the report here. The app does anonymize the report but verify before posting.
     
  9. blago thread starter macrumors newbie

    Joined:
    Aug 3, 2016
    Location:
    Russia
    #9
    EtreCheck version: 2.9.13 (267)

    Report generated 2016-08-07 18:50:31

    Download EtreCheck from https://etrecheck.com

    Runtime 1:32

    Performance: Excellent



    Click the [Support] links for help with non-Apple products.

    Click the [Details] links for more information about that line.



    Problem: Beachballing



    Hardware Information:

    MacBook Pro (Retina, 13-inch, Early 2015)

    [Technical Specifications] - [User Guide] - [Warranty & Service]

    MacBook Pro - model: MacBookPro12,1

    1 2.7 GHz Intel Core i5 CPU: 2-core

    16 GB RAM Not upgradeable

    BANK 0/DIMM0

    8 GB DDR3 1867 MHz ok

    BANK 1/DIMM0

    8 GB DDR3 1867 MHz ok

    Bluetooth: Good - Handoff/Airdrop2 supported

    Wireless: en0: 802.11 a/b/g/n/ac

    Battery: Health = Normal - Cycle count = 270


    Video Information:

    Intel Iris Graphics 6100

    Color LCD 2560 x 1600


    System Software:

    OS X Yosemite 10.10.5 (14F1909) - Time since boot: about 6 hours


    Disk Information:

    APPLE SSD SM0256G disk0 : (251 GB) (Solid State - TRIM: Yes)

    EFI (disk0s1) <not mounted> : 210 MB

    Recovery HD (disk0s3) <not mounted> [Recovery]: 650 MB

    Macintosh HD (disk1) / : 249.77 GB (233.98 GB free)

    Core Storage: disk0s2 250.14 GB Online


    USB Information:

    Apple Internal Memory Card Reader

    Broadcom Corp. Bluetooth USB Host Controller


    Thunderbolt Information:

    Apple Inc. thunderbolt_bus


    Gatekeeper:

    Mac App Store and identified developers


    System Launch Agents:

    [not loaded] 4 Apple tasks

    [loaded] 145 Apple tasks

    [running] 63 Apple tasks


    System Launch Daemons:

    [not loaded] 48 Apple tasks

    [loaded] 137 Apple tasks

    [running] 76 Apple tasks


    User Launch Agents:

    [loaded] com.google.keystone.agent.plist (2016-08-04) [Support]


    User Login Items:

    iTunesHelper Application (/Applications/iTunes.app/Contents/MacOS/iTunesHelper.app)


    Other Apps:

    [loaded] 357 Apple tasks

    [running] 157 Apple tasks


    Internet Plug-ins:

    Default Browser: 600 - SDK 10.10 (2015-07-17)

    QuickTime Plugin: 7.7.3 (2016-08-06)



    Safari Extensions:

    Grammarly for Safari - Grammarly - https://www.grammarly.com (2016-08-04)


    3rd Party Preference Panes:

    None


    Time Machine:

    Time Machine not configured!



    Top Processes by CPU:

    6% WindowServer

    3% fontd

    3% launchd

    1% kernel_task

    1% com.apple.WebKit.WebContent(8)


    Top Processes by Memory:

    1.49 GB com.apple.WebKit.WebContent(8)

    845 MB kernel_task

    164 MB Safari

    49 MB WindowServer

    33 MB com.apple.WebKit.Networking


    Virtual Memory Information:

    8.66 GB Free RAM

    7.33 GB Used RAM (889 MB Cached)

    8 MB Swap Used


    Diagnostics Information:

    Aug 7, 2016, 11:56:05 AM Self test - passed

    Aug 4, 2016, 08:22:22 PM /Library/Logs/DiagnosticReports/configd_2016-08-04-202222_[redacted].crash

    /usr/libexec/configd
     
  10. rshrugged, Aug 7, 2016
    Last edited: Aug 7, 2016

    rshrugged macrumors 6502a

    Joined:
    Oct 11, 2015
    #10
    That's a pretty clean report. I don't see anything very troubling, maybe @Weaselboy or one of the other more knowledgeable members will have some input.

    The User Launch Agent : com.google.keystone.agent.plist : is related to google product(s) update and I don't see that you currently have any google apps. If you've uninstalled them, you might as well uninstall this as well.

    I saw that you've posted to the Safari 'freeze' thread so you know there's been widespread complaints about this. As I skimmed through the threads, other than the usual - note the exact time when this occurs then check the Console; start in safe mode then normal mode, check behavior in each; set up a new user account to check behavior; use a different browser.

    One thing I didn't see mentioned there and it would be relevant to the page you linked to earlier - If you haven't already, go to Safari Preferences -> Security -> *untick* Allow WebGL. Any performance difference? This likely isn't a solution but it might be a clue.

    For what it's worth, recently for a few weeks I used Safari* as my daily browser. I had no freezes, like most others. If this is an OS X and/or Safari bug, it's not going to be easy to find at the user level.

    * two extensions - WoT, and uBlock as advanced user with 3rd party scripts and frames blocked globally; also several static filters.
     
  11. blago thread starter macrumors newbie

    Joined:
    Aug 3, 2016
    Location:
    Russia
    #11
    When it freezes I get messages like "
    07/08/2016 22:16:54.141 WindowServer[130]: Surface testing disallowed updates for 10 sequential attempts...
    07/08/2016 22:16:54.151 WindowServer[130]: Surface test allowed updates after 11 attempts
    "
    My console was full of them when I visited http://www.apple.com/uk/music/
     
  12. old-wiz macrumors G3

    Joined:
    Mar 26, 2008
    Location:
    West Suburban Boston Ma
    #12
    Do a google search on "mac window server surface" and it leads you to apple forum discussing the issue.
     
  13. blago thread starter macrumors newbie

    Joined:
    Aug 3, 2016
    Location:
    Russia
    #13
    It seems like there is no solution for that. There is only one guy on apple forum who is trying to help, but he gives the same suggestions all the time ("delete caches", "delete adobe flash" etc.) and they solve nothing.
     
  14. rshrugged macrumors 6502a

    Joined:
    Oct 11, 2015
    #14
    Have you seen and tried the following?
    http://osxdaily.com/2015/04/06/windowserver-high-cpu-usage-mac-os-x/
    https://www.macissues.com/2014/10/20/prevent-the-windowserver-process-from-dragging-yosemite-down/
     
  15. blago thread starter macrumors newbie

    Joined:
    Aug 3, 2016
    Location:
    Russia
    #15
    Tried all of these but it doesn't help.
    I paid like £1200 for this s**t thinking it will work like clockwork but have to deal with laggy animations and low GPU performance.
    --- Post Merged, Aug 7, 2016 ---
    Dunno, maybe I should bring to Apple Store to see if they can do something, it is still under warranty, but not sure if it covers that kind of issue.
     
  16. Weaselboy Moderator

    Weaselboy

    Staff Member

    Joined:
    Jan 23, 2005
    Location:
    California
    #16
    Both those sites you linked work fine for me on El Capitan, so it must be something on your end. Try getting rid of this Safari extension.
     
  17. blago thread starter macrumors newbie

    Joined:
    Aug 3, 2016
    Location:
    Russia
    #17
    i think it is related to Iris 6100, it's too weak to handle those websites
     
  18. Weaselboy Moderator

    Weaselboy

    Staff Member

    Joined:
    Jan 23, 2005
    Location:
    California
    #18
    https://support.apple.com/kb/SP703

    I'm on the 2014 version of your rMBP with lower powered Iris graphics, so I don't think that is the issue.
     
  19. rshrugged macrumors 6502a

    Joined:
    Oct 11, 2015
    #19
    Have you tried using an ad blocker and/or script blocker?
    I use uBlock in Safari in the mode mentioned at the bottom of post #10.
    As I recall, @Weaselboy uses Adguard. I'm not sure of its capabilities beyond ad blocking.
     
  20. blago thread starter macrumors newbie

    Joined:
    Aug 3, 2016
    Location:
    Russia
    #20
    and you're saying that all those websites mentioned above your rmbp runs smoothly? That's strange indeed
    --- Post Merged, Aug 12, 2016 ---
    I installed uBlock and Adguard, removed Grammarly, then removed all of them, but it doesn't help
     
  21. Weaselboy Moderator

    Weaselboy

    Staff Member

    Joined:
    Jan 23, 2005
    Location:
    California
    #21
    Yes... I just went through this thread and tried every link you provided and they are all perfectly smooth for me in Safari in El Capitan.
     
  22. grahamperrin macrumors 601

    grahamperrin

    Joined:
    Jun 8, 2007
    #22
    +1

    Just a little, split seconds.

    +1

    A little less than with the Sierra page.

    Environment

    Early 2011 MacBookPro8,2 with 4 GB memory, build 16A286a of Sierra booted from an external hard disk drive limited to USB 2.0.

    AMD Radeon HD 6490M 256 MB and Intel HD Graphics 3000 384 MB and as far as I could tell (from System Information) the AMD was in use during those tests.

    Thoughts

    @blago you might try something.

    In a Terminal window, run the command below then bring Safari to front and (Command-R) reload the affected page.

    defaults write com.apple.safari com.apple.Safari.ContentPageGroupIdentifier.WebKit2SuppressesIncrementalRendering 1

    Expect the load of the page to be slower, but then scrolling within the loaded page might be smoother.

    To revert to the default:

    defaults write com.apple.safari com.apple.Safari.ContentPageGroupIdentifier.WebKit2SuppressesIncrementalRendering 0
     

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