Latest WebKit Builds Address Browser Scrolling Performance on Retina MacBook Pro Models

Discussion in ' News Discussion' started by MacRumors, Dec 4, 2012.

  1. macrumors bot


    Apr 12, 2001

    Soon after the launch of the 15-inch Retina MacBook Pro in June, we pointed to an analysis by AnandTech showing how the need to drive a massive number of pixels taxed the graphics capabilities of the machine to the point where it struggled to hit 20 frames per second while scrolling on resource-intensive web pages such as Facebook news feeds.

    AnandTech now follows up with a new report based on a thread in our forums showing that the latest builds of WebKit, the open source browser engine upon which Safari is based, demonstrate dramatically improved frame rates during scrolling.
    The results show frame rates of around 20 frames per second (fps) under the standard Safari 6.0.2, but jump to nearly 50 fps when using nightly build r135516 of WebKit.

    Frame rates approaching 50 fps when scrolling in WebKit nightly build r135515
    AnandTech hasn't been able to determine exactly what code changes were made to enable the significant boost to scrolling performance on Retina MacBook Pro models, and it is unclear exactly when those changes will be incorporated into Safari itself, but it certainly seems that a solution is on its way.

    Article Link: Latest WebKit Builds Address Browser Scrolling Performance on Retina MacBook Pro Models
  2. ironsienna, Dec 4, 2012
    Last edited: Dec 4, 2012

    macrumors regular


    Oct 28, 2010
    Great, that was the major concern I had that was holding me from purchase a new macbook pro: Poor web browsing performance. Kudos to Apple, for working on optimising the code rather than trying to sell another model with faster processor in just a few months. I am so glad they managed to address this as it was rather irritating...
  3. macrumors newbie

    Jan 12, 2011
    Thank god. It's the worst part of this expensive machine. Think I'll just install the nightly rather than wait.


    Now bring us a Retina CS6, upgradable RAM and we'll be cruising :D.
  4. macrumors newbie

    Jun 14, 2012
    Blur out the names or someone's getting pizzas sent to thier house
  5. macrumors member

    Jan 26, 2005

    Downloaded the nightly build of webkit and the browser is much faster and smoother on my RMBP. Thanks for the article and reference link. :apple:
  6. macrumors member

    Aug 8, 2008
  7. macrumors 65816

    May 1, 2012

    It's a shame so many "trusted" review sites (including The Verge) dinged the rMBP and blamed the hardware.... for what is clearly a software problem.
  8. macrumors 68040


    Feb 12, 2010
    This isn't the only area where lag is found. There is general UI lag in the OS as well. Not to say that there isn't some software issues there as well, but they have a lot of evidence that GPUs just aren't up to snuff yet.

    Edit: Why haven't I downloaded nightly builds before? This fixed multiple issues I had been having with Safari.
  9. macrumors member

    Feb 14, 2008
    Horse pizza........Mmmmm
  10. macrumors 6502a

    Oct 21, 2011
    So why did Apple release a product that clearly wasn't ready yet?
  11. macrumors 68040


    Feb 12, 2010
    To wake everyone up.
  12. Feed Me, Dec 4, 2012
    Last edited: Dec 4, 2012

    macrumors 6502a

    Feed Me

    Jan 7, 2012
    Location Location
    helloo ooo webkit nightlies.

    EDIT: Hooooly moly, the article doesn't lie.

    Scrolling for instance, is like night(ly) and day when compared between Safari and WebKit.

    Think I'll be switching over for a while...
  13. macrumors 6502a

    Feb 9, 2010
    Does it REALLY say that the 2000 euro machine can't (couldn't) scroll the web smoothly...? Sheesh, and people get all upset about a maps application you have plenty of alternatives for. :confused:
  14. macrumors 603


    Jul 3, 2002
    Middle Earth
    When is anything every ready in this industry?

    Everything is in constant motion.
  15. macrumors 65816

    Nov 4, 2010
    who cares about safari. so does this mean chrome will finally be as speedy on the RMBP?
  16. macrumors newbie

    Nov 11, 2008
    wow is now finally nearly fluid on my 2012 MBA! thanks!
  17. macrumors newbie

    Jan 14, 2009
    I haven't noticed anything besides the scrolling, then again my previous MBP probably had some lag because it was quite old. Which instances can you detect the UI lag?

    The scrolling lag is completely gone with the new Webkit build by the way.
  18. macrumors 6502

    Jan 19, 2007
    Well, 20 fps scrolling of Facebook isn't exactly the Nerdpocalypse, either.

    What has been annoying, I've found, is significant lag fairly frequently in Mission Control.
  19. macrumors demi-god


    Aug 11, 2003
    So this update makes Safari feel snappier?

    Okay, now I think Arn is just trolling us...
  20. macrumors 68030


    Jan 6, 2009
    Apple didn't do anything, webkit did which is mostly people from KHTML which is what webkit was forked from.
  21. macrumors 6502

    Jan 27, 2009
    Montreal, Qc
    10.8.3 beta fixed that lag for me :) hope it stay that way when the final is eventualy released.
  22. macrumors 603


    Jul 3, 2002
    Middle Earth
    That was ages ago. Today's webkit is a much larger beast than that old KHTML. Go ask Dave Hyatt how much work he's put into Webkit as an Apple employee.

    To say Apple hasn't make a significant investment in Webkit is to be either ignorant or foolish or both.
  23. macrumors 68040

    Apr 6, 2007
    I cant say I've ever noticed this myself. I'm assuming it only happens in certain circumstances?

    (Using Chrome, 15" rMBP)
  24. macrumors 6502a


    Jul 27, 2012
    In an ethereal plane of existence.
    The issue with the nightlies is they're highly unreliable. Every now and then an update comes in that makes it crash all day, introduce rendering errors, etc. It's meant for testing and nothing else. Only a fraction of the changes in the nightly actually gets into release WebKit.
  25. macrumors 65816


    Apr 14, 2009
    Wilts., UK
    Well, I can't say I've noticed any scrolling issues in FB on my rMBP - except when FB is still loading images.

    The only noticeable regular glitch is clicking on Quick Links at the top of these forums. About 2/3rds of the time it draws the drop down menu in two steps.

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