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Retina iMac + Mission Control: Post your experience

c.s. said:
After installing 10.10.1, I have absolutely no stuttering/jerkiness in mission control. Not that it really bothered me before, but it's nice that Apple took care of it. Base CPU and GPU.
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I didn't have any major stuttering issues with my high-end RiMac before 10.10.1 with Mission Control, but it's clear to me that it's *that* much smoother after the update. Like going from 45-50fps to a (mostly) smooth 60fps animation. Sometimes it can take a few times running Mission Control for it to be 100% smooth 60fps, though. I'd say it's probably 90% smooth, overall.

Boy, little bit obsessive, no? :D
 
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I just got off the phone with an Apple engineer and they said they were aware of this issue (many reports of this problem) and assured me that it was a Yosemite issue not hardware. They said 10.10.1 corrected some issues, but were currently working on fixing the issue described here by OP in an upcoming Yosemite release. Could not say when or how long :(

Until then if this issue is disrupting workflow there are options already posted in this thread to minimize the issue. One member posted turning off animations, here's a resource for doing so if anyone needs it.

http://apple.stackexchange.com/questions/14001/how-to-turn-off-all-animations-on-os-x

I turned them off for Mission Control and works great for what I need now. Remember need to log off before settings are applied.
 
Wondering if the delay of the rimac has something to do with the problem - maybe it is a hardware problem.

I don't see any improvement till date, very frustrating.
 
marcel500 said:
Wondering if the delay of the rimac has something to do with the problem - maybe it is a hardware problem.

I don't see any improvement till date, very frustrating.
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Why would that be a hardware issue? It doesn't make any sense...It is an obvious issue with Mission Control on Yosemite, nothing more than that.
 
marcel500 said:
What is the rational for excluding a hardware problem?
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Everything else in the system is very fast. There are no slowdowns whatsoever. Playing games in 5K resolution works very well. How could a hardware issue be causing slowdowns in Mission Control animations and not cause similar issues in games?
 
petvas said:
Everything else in the system is very fast. There are no slowdowns whatsoever. Playing games in 5K resolution works very well. How could a hardware issue be causing slowdowns in Mission Control animations and not cause similar issues in games?
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I am not saying it is most likely a hardware problem but I think we should not exclude it.
 
Safari responsible

Fascinating thread here – not helping with the GPU purchase decision at all, but still...

What I noticed when testing base config Retina iMacs at various Apple Stores and retail outlets (before reading this thread, BTW), is that having Safari open and set to full-screen display with a graphically intensive page seems to hurt Mission Control performance the hardest.

With Apple's own Retina iMac page open, there was hardly any animation at all, and it was all really jumpy.

Now I'd be really curious if having a m295 GPU really helps. There was a gentleman here who did a side-by-side video of two Retina iMacs doing Mission Control acrobatics – that would be perfect decision-helping material indeed.
 
This is frustrating me to no end. Working on this computer now is a chore, as I constantly switch between Spaces and go to Mission Control. A lot of the time just switching between two large windows on the same Space can be a bit choppy.

Just to make sure that I'm having the same problem as everybody else, it's not _just_ Mission Control right? It's also slow and choppy going from one Space to another? And slow in certain animations when you have a lot of windows open?

I am worried that the M290X that I got is just not up to the task of running this screen.
 
cstromme said:
This is frustrating me to no end. Working on this computer now is a chore, as I constantly switch between Spaces and go to Mission Control. A lot of the time just switching between two large windows on the same Space can be a bit choppy.

Just to make sure that I'm having the same problem as everybody else, it's not _just_ Mission Control right? It's also slow and choppy going from one Space to another? And slow in certain animations when you have a lot of windows open?

I am worried that the M290X that I got is just not up to the task of running this screen.
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I have no issues on base iMac switching spaces. I have safari, Xcode, mail, limechat, opened on 3 different spaces. Also mission control isn't laggy. base iMac.
 
workerbee said:
Fascinating thread here – not helping with the GPU purchase decision at all, but still...

What I noticed when testing base config Retina iMacs at various Apple Stores and retail outlets (before reading this thread, BTW), is that having Safari open and set to full-screen display with a graphically intensive page seems to hurt Mission Control performance the hardest.

With Apple's own Retina iMac page open, there was hardly any animation at all, and it was all really jumpy.

Now I'd be really curious if having a m295 GPU really helps. There was a gentleman here who did a side-by-side video of two Retina iMacs doing Mission Control acrobatics – that would be perfect decision-helping material indeed.
Click to expand...

I've had both and yes the m295x does not seem to exhibit this issue, or a least is much less noticeable ( can have way more safari windows open ). Also m295x seemed to be snappier updating elements, switching spaces, etc. ( both machines had same CPU (i5) ) I have base now and after quite a few calls with apple they continue to reassure me that it is a Yosemite issue and hardware is not the issue. We'll see. But if this is deciding factor what GPU to get, m295x might be better choice for now.
 
ra004e said:
I've had both and yes the m295x does not seem to exhibit this issue, or a least is much less noticeable ( can have way more safari windows open ). Also m295x seemed to be snappier updating elements, switching spaces, etc. ( both machines had same CPU (i5) ) I have base now and after quite a few calls with apple they continue to reassure me that it is a Yosemite issue and hardware is not the issue. We'll see. But if this is deciding factor what GPU to get, m295x might be better choice for now.
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Thanks for that! I do currently lean towards the more capable m295x, even though I also fear its higher energy usage, as I really like my computers to be silent. There are so many places where Apple has to work on in Yosemite, at least IMHO, that I'm not holding my breath for this specific update.
 
workerbee said:
Thanks for that! I do currently lean towards the more capable m295x, even though I also fear its higher energy usage, as I really like my computers to be silent. There are so many places where Apple has to work on in Yosemite, at least IMHO, that I'm not holding my breath for this specific update.
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I'd like to mention, that although I did not measure temperature with any programs, the heat from back of iMac with m295x was just a little warmer. For my usage ( Safari, chrome, xCode, iDea, netflix, iTunes, Cyberduck, Sublime, etc all running at the same time, many windows open at same time.) I'm a RAM hog:), I maybe heard the fan spin up once or twice.

Yes not as cool as m290x but with this kind of usage it's not an issue and still very quiet. If you're looking to future proof I still think the m295x is the better bet. Hope this helps.
 
Variances

Sorry to be droning on and on about this – I filmed a quick test at an Apple retailer yesterday. Please excuse the horrific background sound, and the wobbly one-handed camera.

First, I opened a handful of standard Apple programs.
With Safari as frontmost app, I had Macupdate.com open as an example of a really simple page. Mission Control seems smooth enough to me at least.

Next, I opened one of the simpler Apple pages. Mission Control still seems OK.

Then, I opened the Apple Retina iMac page. Boom, stuttering, nearly animation-free Mission Control.

Of course, having Safari in full screen is even worse, especially with this page open in the frontmost tab.

I also tried having more than a dozen tabs open. Mission Control only stuttered badly with the aforementioned, graphically-intensive page open (though it obviously has its work cut out mission-controlling from anything displayed full-screen)

Actually, I'm beginning to wonder whether there could be a relation to the «MacBook Pro crash under Yosemite when the GPU switches» – like the graphically intensive pages (often with a lot of Javascript going on) that make the MBP switch GPUs also make Safari slow to work Mission Control.

Anyway, if I get a Retina iMac, I'll be going for the m295x GPU.
 
workerbee said:
Sorry to be droning on and on about this – I filmed a quick test at an Apple retailer yesterday. Please excuse the horrific background sound, and the wobbly one-handed camera.

First, I opened a handful of standard Apple programs.
With Safari as frontmost app, I had Macupdate.com open as an example of a really simple page. Mission Control seems smooth enough to me at least.

Next, I opened one of the simpler Apple pages. Mission Control still seems OK.

Then, I opened the Apple Retina iMac page. Boom, stuttering, nearly animation-free Mission Control.

Of course, having Safari in full screen is even worse, especially with this page open in the frontmost tab.

I also tried having more than a dozen tabs open. Mission Control only stuttered badly with the aforementioned, graphically-intensive page open (though it obviously has its work cut out mission-controlling from anything displayed full-screen)

Actually, I'm beginning to wonder whether there could be a relation to the «MacBook Pro crash under Yosemite when the GPU switches» – like the graphically intensive pages (often with a lot of Javascript going on) that make the MBP switch GPUs also make Safari slow to work Mission Control.

Anyway, if I get a Retina iMac, I'll be going for the m295x GPU.
Click to expand...

Sorry to keep replying to this :), As has been mentioned before in this thread, by setting Systems Preferences > Accessibility > Increase contrast to on. There are no issues on speed. I'm using "Looks like 3200 x 1800" with an additional 1920x1080 monitor and system does not hesitate or lag at all. Now you loose all the pretty Yosemite transparency effects, but if you need to jam while working it's never noticed ( my opinion ). Which leads me to think m290x either has less power to handle IU transparency or Yosemite implementation is not optimized for m290x. Again m295x definitely deals with IU transparency better. Now that I'm over UI transparency thinking of going 4k for an additional monitor.
 
I too am experiencing the mission control lag. This is on a riMac 4GHz with the M295X, 24GB RAM and a 3TB Fusion Drive.

Definitely think that the 5k display feels like software is playing catch up a bit.
 
I'm on 10.10.2 latest beta, and things are even smoother.

I think Apple did it with this one, now I want to try my 4k monitor.
 
ckeck said:
I want to see VIDEO from anyone claiming not to have this. I have no external monitors connected and have even done second clean install of Yosemite. The screen lag when queueing Mission Control is absolutely horrid. Sometimes the machine will pause for a 2 or 3 Mississippi count.

Mostly though it takes about 3-4 noticeable frames that I can visibly count.

Let me get ScreenFlow installed and I'll take a video of my own system.

----------

Just saw the video above after I posted. I'll upload mind here this afternoon so you can see the difference.

WTF :mad:
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Here is my video (it's about a Retina MacBook Pro, but the issue is the same): https://www.youtube.com/watch?v=tktaJuD9JK4&feature=youtu.be
 
This bug has been driving me crazy for the last two months. Last month a fresh install of Yosemite fixed the issue for a while, but it quickly came back. I just downloaded 10.10.2 beta and fortunately it all works again! I was able to turn transparencies back on. Still not 60fps smooth but no stutter anymore, hopefully it stays and doesn't revert to the lag like it did last OS install. I'm running a late 2013 top end Macbook Pro with a Dell 30" 4k display, I wish Apple would beef up the graphics cards at the same rate they and other companies are upping resolution...
 
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