10.10.4 HIGHLY increase smoothness: NO MORE LAG !

[thewusman]

This gets even weirder.

I got my Space Grey base model replaced today as the first one had a small stuck pixel in the centre of the screen.

The replacement is fresh from production - build date is May 2015, came pre-installed with 10.10.3 and I've upgraded to 10.10.4 beta 4.

I have no lag issues whatsoever on this model like I had on the first.

I recall another users noticed this as well on his third swap out.

How on earth is this possible ?

 

[tecnho]

Similarly to the other fixes, the lag issues return after some time, even after deleting the .plist files.

Any other ideas? Seems like this problem has nothing to do with the MB and everything to do with Yosemite.

 

[Theophil1971]

Similarly to the other fixes, the lag issues return after some time, even after deleting the .plist files.

Any other ideas? Seems like this problem has nothing to do with the MB and everything to do with Yosemite.

Yep, I think you're right. I personally don't think deleting .plist files, or repairing disk permissions, etc... has any impact on the visual performance of the UI. I think it's a function of the way that the UI is coded to drive those animations through the GPU and out to all those millions of retina pixels. The OS needs a significant change in order to do that with enough increased efficiency to make those transitions and animations seem significantly smoother.
That, it seems, is something that Apple is incorporating into the upcoming version of OS X (10.11, "El Capitan") The new version will incorporate Apple's "Metal" technology, reducing the overhead between the OS and the GPU, allowing visual effects to run more efficiently and smoothly. It's just a matter of waiting for it now, but already the Devs and Beta-testers who have tried out the early beta build are reporting significantly increased performance.

 

[thewusman]

El Capitan is like night and day - everything with transparency left on is fluid.

However, battery drain is terrible, so for me, not an option its current form. Am sure subsequent DP's will address this.

 

[headcase]

Yep, I think you're right. I personally don't think deleting .plist files, or repairing disk permissions, etc... has any impact on the visual performance of the UI. I think it's a function of the way that the UI is coded to drive those animations through the GPU and out to all those millions of retina pixels. The OS needs a significant change in order to do that with enough increased efficiency to make those transitions and animations seem significantly smoother.
That, it seems, is something that Apple is incorporating into the upcoming version of OS X (10.11, "El Capitan") The new version will incorporate Apple's "Metal" technology, reducing the overhead between the OS and the GPU, allowing visual effects to run more efficiently and smoothly. It's just a matter of waiting for it now, but already the Devs and Beta-testers who have tried out the early beta build are reporting significantly increased performance.

Well said. I've been testing the 10.10.4 betas, and have always felt that they didn't modestly impact the UI performance for retina screens. But then again, most maintenance releases aren't huge leaps in performance anyhow...

 

[mattopotamus]

This gets even weirder.

I got my Space Grey base model replaced today as the first one had a small stuck pixel in the centre of the screen.

The replacement is fresh from production - build date is May 2015, came pre-installed with 10.10.3 and I've upgraded to 10.10.4 beta 4.

I have no lag issues whatsoever on this model like I had on the first.

I recall another users noticed this as well on his third swap out.

How on earth is this possible ?

I think it has to do with the cooling. Some machines are "throttling" too soon and causing massive lag even under light task. IMO, that is the only way the lag can be explained machine to machine, with the same specs and same work load.

 

[seong]

This gets even weirder.

I got my Space Grey base model replaced today as the first one had a small stuck pixel in the centre of the screen.

The replacement is fresh from production - build date is May 2015, came pre-installed with 10.10.3 and I've upgraded to 10.10.4 beta 4.

I have no lag issues whatsoever on this model like I had on the first.

I recall another users noticed this as well on his third swap out.

How on earth is this possible ?

It's interesting how this played out similarly with my rMB.
I initially purchased my rMB when it was available first thing in the Apple Store here in Tokyo. Since then, my Space Grey model has been acting strange, with slow bout up times, jitter, WiFi issues, etc. I did a clean install on this machine 5 times, with no luck.
Took it to the Apple Store nearby, they kindly swapped it with a new one, and when I checked the serial number its build date was June: fresh off from the supply chain. Now, everything works like it did on my rMBP 15". I wish I had written down my serial number of my previous Macbook to check the build date to compare.