Apple Seeds Build 12D68 of OS X Beta 10.8.3 to Developers

[Mr. Retrofire]

Originally Posted by cvakistan

...
B) *this one likely only affects Retina users* There has clearly been an effort to increase the fluidity of the OS (animations, etc.) yet I notice mixed results on my mid-2012 2.3ghz retina MBP. Safari scrolling is better but still tends to lag a bit on pages like Facebook.

This is an enhancement in WebKit, not Safari. ≈ 100 percent more performance (2x).

Originally Posted by cvakistan

The Dock magnification lag has been addressed, and and to my untrained eye it appears they may have implemented frame-skipping with the intel HD integrated card.

Use the QuartzDebug Frame Meter. It should show you the current framerate of the GPU.

[cvakistan]

Originally Posted by Mr. Retrofire

This is an enhancement in WebKit, not Safari. ≈ 100 percent more performance (2x).


Use the QuartzDebug Frame Meter. It should show you the current framerate of the GPU.

Thanks for the suggestions. After having used this build for a couple days I can definitely say it is a marked improvement over 10.8.2 in terms of stability and interface fluidity. There is indeed frame-skipping enabled in the dock magnification. At least they have made magnification (when using the discrete video card) seamless. I am still somewhat baffled as to why the intel HD 4000 can handle the magnification without issue when the dock is on the left or right, yet struggles mightily when the dock is on bottom. I originally suspected that it is due to the dock being "3D" (with reflections) only when in the bottom position, but if you change the dock to 2D (using 3rd party software) there is still a noticeable performance difference between left/right and bottom.

[B...]

Anyone have any ideas of what 10.8.3 will bring and WHEN?

I am hoping for:
Better graphic drivers on safari to fix rMBP lag
Better/ non laggy Ui animations (sometimes under heavy load)

Hoping for it by Friday of next week.

Any other wishes?