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Help! Anyone Running Mountain Lion on Macbook Pro Retina!!

Patience, ML is just a few days aways, we will soon know for sure very soon.
 
I have just tried the page using my rmbp 2.6 / 512 / 16 model using lion and the lag is minimal / almost non existant.
 
theSeb said:
Scrolling is currently not as smooth as it should (could) be in Lion. This is a fact, but it's no different to my 2011 MBA ultimate running a 24" 1920x1200 monitor. My question is purely because I am curious why people find scrolling performance to be so important, since there are so many threads on this and I haven't got an answer yet. You only notice the slightly jerky scrolling when scrolling up and down the equivalent of multiple screens. I don't understand why someone would spend their time doing this, since no one can read as fast as the scrolling.
Click to expand...
As a person on the fence about purchasing one, I'll explain, at least from my perspective. In the past when I've bought a new Mac, everything was smooth as silk. It didn't last forever, but it gives you a bit of satisfaction. If scrolling and other animations aren't butter smooth now, it gives one pause that it might get better in the short term, but could possibly just get worse as technology moves on. If such animations don't feel significantly better than one's current machine, there is a sense of wasted money and no one wants that at the start, particularly when the product costs so much.
 
jasonx2 said:
I have the exact problem as you do too. Even when scrolling facebook or any

other websites than contain many photos or text will create serious scroll lag

and i don't know whether it is the caused by the sensitivness of the touchpad or

it is the hardware problem。
Click to expand...

it is not a hardware issue, my mac pro has the same problem.
 
So I went to the apple store since most people here claimed they did not have significant scroll lag whilst scrolling through ign's comments section in the link I posted.
I spoke with the staff there, and we tested at least 6 different Macbook Retinas and they all had the same problem on that particular website and page.

So the guy helping me suggested we test the same page on a Macbook Air, and if it is as bad or worse, there is a problem with the website (because lag through the comments was unbearable). It turns out the Macbook Air had very little scroll lag on that same page or at least much better, and the non-retina Macbook Pro had almost no lag.

They couldn't really figure out what it was that was causing it, and have asked me to wait till Mountain Lion is out and if it persists, I book an appointment with the store and they'll get to the bottom of it.

So right now, anyone with Macbook Retina saying they do not have a problem on that particular page running Lion, are basically lying.
 
on the ign link you posted, it is quite laggy on ML (Chrome) but is much better on Safari.

neither browser lag is really noticable so it's nothing to worry about but it's definitely not as smooth as my 2010 macbook pro.
 
Uplift said:
on the ign link you posted, it is quite laggy on ML (Chrome) but is much better on Safari.

neither browser lag is really noticable so it's nothing to worry about but it's definitely not as smooth as my 2010 macbook pro.
Click to expand...

Lag is gone on most websites. but when using Facebook....its quite unbearable especially with tons of content.
 
Tried it on Lion with Safari 5 and the lag was terrible, tested it with both gpu's.

I just tried it on Lion with Safari 6 and the lag is gone. I tried it with both gpu's.

The up to date program is messed up, so I haven't been able to get Mountain Lion yet.
 
striker33 said:
Its not a hardware limitation at all. Its down to the software, in this case, the browser.

Various people have posted the reason on here already in other similar threads. Its apparently down to current browsers only utilising one CPU core.
".
Click to expand...

Come on guys :eek:, this argumentation is BS.

By definition:
* A process (Safari) is bound to CPU/core. It is the Operating System who bounds the launched process to a CPU/core and Safari has no control over it.
* A process (Safari) can create many threads (multi-threading) to perform in parallel multiple tasks, thus improving the performance.

Safari 6 has been improved (it uses more threads at the UI level). If you enter theverge website for instance, you'll see that the progress bar of the url finishes before the content is rendered. Also the content is rendered progressively and not in one shot like in Safari 5, which gives the impression that pages are rendered faster. Compare it with Safari 5 if you want to verify my sayings.

The lags observed in mission control are either related to software (display drivers at OS level), or hardware limitation (the gpu specs cannot handle the retina).

my 2cents.
 
Last edited:
To solve this problem you must use Safari Webkit, or wait for the updates to 6.0.3 which will have much more fluid Facebook and other websites.
I use facebook for 3 months since Webkit is really more fluid!

Sorry for my english I'm french.
 
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