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Retina iMac + Mission Control: Post your experience

Padmini said:
Hello all.

Just heard back from the Engineering Team at Apple today, who reviewed all of the data I sent them.

They confirmed they are indeed capable of reproducing the issue, that specific applications are causing it, that it is not a hardware issue, and that it can and will be fixed in a future software update.

I'm really happy to hear it.
Click to expand...

Greta news if it pans out. hmmm . . .I wonder what "specific applications" they are speaking of. . .
 
petvas said:
That's strange. Maybe it has to do with upgraded systems from Mavericks?
I had restored my Time Machine backup from my late 2013 iMac that had Yosemite (but was upgraded from Mavericks).
I do not intend to install the system from scratch though just to test that..
Click to expand...

Not that strange at all. Actually typical if you don't open more than 6-8 Safari windows.

----------
bjmoose said:
Forgot to mention it's also driving a Dell U2713HM 2560x1440 where the VMs are displayed, over a TB2 connection that has a couple of disk units before the display.
Click to expand...

This is to be expected. Only certain applications cause issues. How many Safari windows can you have before things bog down?
 
redheeler said:
Smooth as butter over here :cool: not a single dropped frame
Don't have an external monitor attached though.
Click to expand...

Interesting. I have the exact same specs except with the 1 TB fusion drive and I experience jittery animations for mission control , exposé, and Show desktop animations. I have a mid-2011 iMac side by side with the retina and it's a lot smoother than the Retina iMac when it comes to the animations.

I tried doing the animations in slow motion with holding shift and it simply jitters and flickers in slow motion.
 
5iMacs said:
This is to be expected. Only certain applications cause issues. How many Safari windows can you have before things bog down?
Click to expand...

I don't use Safari for much, so hadn't tried that. At 16 windows of Safari, it's pretty stuttered. At 8, same. Handles 2 windows okay, three starts to get jerky.

The new Safari windows were just command-N new completely blank windows, so there was certainly no massive load involved. Firefox with 70 tabs is a lot more resource hungry than a handful of empty Safari windows.

Just another reason to consider Safari the third and least useful of three browsers.
 
Well, there's no way I'll stop using Safari just because it slows down Mission Control, I really couldn't care less.

I've just wanted counter all of these amusingly certain claims that Mission Control was somehow too graphically demanding for an M290X GPU.
 
marcel500 said:
Its definitely a safari issue - anyone tried the new safari beta?
Click to expand...

I can get it to happen with Chrome as well. I can reproduce the issue on any application after about 4-5 windows open, but yes Safari and Chrome seem to be worse than others.
 
Fix - Sofar working for 4 hours

so i almost returned my imac because of this lag issue (switching between screens and apps is a big deal for me, no matter how fast everything is)... but i tried a fix that helped users on older imacs (non-retina and retina mbp) and sofar its working splendidly.

for the record, i have a base imac retina (i5, 8gb memory, 2gb video, 1tb fusion) and i was experiencing crazy mission control lag, and lag whenever my wallpaper changed.

so the fix was to download Onyx, and do a system and user cache delete, and did a restart. It was still buggy at first, but after a few minutes it's buttery smooth. Also, after a few hours with many programs open (including safari and some video programs), 3 desktops, it still works pretty smooth with a hiccup here and there but very rare.

i don't know why this works, especially from a clean new install from the store, but it did. im thinking the install leaves some stuff behind that has to be manually deleted, but thats just a guess.

so all in all now i'm pretty happy with this mac, and glad i don't have to upgrade and spend more money on the highest spec one.

hope this helps other people with the i5 and 290x.
 
mitsuko11 said:
so i almost returned my imac because of this lag issue (switching between screens and apps is a big deal for me, no matter how fast everything is)... but i tried a fix that helped users on older imacs (non-retina and retina mbp) and sofar its working splendidly.

for the record, i have a base imac retina (i5, 8gb memory, 2gb video, 1tb fusion) and i was experiencing crazy mission control lag, and lag whenever my wallpaper changed.

so the fix was to download Onyx, and do a system and user cache delete, and did a restart. It was still buggy at first, but after a few minutes it's buttery smooth. Also, after a few hours with many programs open (including safari and some video programs), 3 desktops, it still works pretty smooth with a hiccup here and there but very rare.

i don't know why this works, especially from a clean new install from the store, but it did. im thinking the install leaves some stuff behind that has to be manually deleted, but thats just a guess.

so all in all now i'm pretty happy with this mac, and glad i don't have to upgrade and spend more money on the highest spec one.

hope this helps other people with the i5 and 290x.
Click to expand...

So just run ONYX once and that's it? I can delete the tool afterwards, again?

Sounds promissing.

Thanks
 
marcel500 said:
So just run ONYX once and that's it? I can delete the tool afterwards, again?

Sounds promissing.

Thanks
Click to expand...

well right now i can't say, the fix has only worked for say... 5 or 6 hours. but no differences and hopefully it doesn't come back.

the non-retina imac & retina mbp users that did this never mentioned the problem ever coming back either.
 
geong said:
https://discussions.apple.com/message/27063757#27063757
Try click on "Increase contrast" on accessibility panel :cool:

i tried on my base 5k which recovered from my TM OS Mavericks.
its a lot smoother than before but not perfect.
probably not a hardware issue:)
Click to expand...

so strange. 4k iMac connected to my 5k iMac, also have base. if I enable this, everything is buttery smooth.

However if I just disable transparency, it's still a little laggy.. Not sure what's going on.
 
mitsuko11 said:
so i almost returned my imac because of this lag issue (switching between screens and apps is a big deal for me, no matter how fast everything is)... but i tried a fix that helped users on older imacs (non-retina and retina mbp) and sofar its working splendidly.

for the record, i have a base imac retina (i5, 8gb memory, 2gb video, 1tb fusion) and i was experiencing crazy mission control lag, and lag whenever my wallpaper changed.

so the fix was to download Onyx, and do a system and user cache delete, and did a restart. It was still buggy at first, but after a few minutes it's buttery smooth. Also, after a few hours with many programs open (including safari and some video programs), 3 desktops, it still works pretty smooth with a hiccup here and there but very rare.

i don't know why this works, especially from a clean new install from the store, but it did. im thinking the install leaves some stuff behind that has to be manually deleted, but thats just a guess.

so all in all now i'm pretty happy with this mac, and glad i don't have to upgrade and spend more money on the highest spec one.

hope this helps other people with the i5 and 290x.
Click to expand...

Maybe my Mission Control lag wasn't crazy enough, actually I don't think it was since it was pretty limited to Safari (and Chrome but not as bad), and doing the Onyx cache cleanup didn't stop Mission Control from struggling when I have 10+ Safari windows. Probably multiple issues here.
 
mitsuko11 said:
well right now i can't say, the fix has only worked for say... 5 or 6 hours. but no differences and hopefully it doesn't come back.

the non-retina imac & retina mbp users that did this never mentioned the problem ever coming back either.
Click to expand...

Onyx didn't help me.

The Yosemite update today seems to have fixed Mission Control (base model riMac here). Only time will tell though :)
 
Coufu said:
Onyx didn't help me.

The Yosemite update today seems to have fixed Mission Control (base model riMac here). Only time will tell though :)
Click to expand...

The Yosemite update today seems to have fixed Mission Control (base model riMac here). Only time will tell though :)[/QUOTE]

Still the same problem, maybe a bit better. Neither onyx nor the update helped - waiting for the new safari.
 
Not really a fan of Mission Control, but the AMD Driver and Safari updates in Yosemite 10.10.1 are a major improvement there.

15 Safari windows (plus 5 other apps), which would slow the whole "enter into Mission Control" sequence by at least a second and eliminate the animation, now result in a normal 1.5 second transition and just a little stuttering. Doesn't seem like a usability issue anymore.

Also, the first time into Mission Control after working for a while is choppier than subsequent ones, but not slow like it was before.

I'm not seeing the reported "finder lag" in moving and resizing windows, but I wasn't seeing that before either.
 
5iMacs said:
Not really a fan of Mission Control, but the AMD Driver and Safari updates in Yosemite 10.10.1 are a major improvement there.

15 Safari windows (plus 5 other apps), which would slow the whole "enter into Mission Control" sequence by at least a second and eliminate the animation, now result in a normal 1.5 second transition and just a little stuttering. Doesn't seem like a usability issue anymore.

Also, the first time into Mission Control after working for a while is choppier than subsequent ones, but not slow like it was before.

I'm not seeing the reported "finder lag" in moving and resizing windows, but I wasn't seeing that before either.
Click to expand...

Where did you see that Safari and AMD drivers were updated? Was looking here http://support.apple.com/en-us/HT6572, but didn't see anything related. I 've updated base riMac to 10.10.1. Maybe see a little difference but still really bad after 5-6 windows opened. Had my fingers crossed. Was there anything else that you did to alleviate the lag in mission control?
 
Last edited:
It feels 10% better after the Yosemite update today, which isn't saying much. Even after turning on "Increase Contract", that makes it maybe another 25% better?

I hope they fix it soon. It's the only thing keeping me from being 100% satisfied.
 
ra004e said:
Where did you see that Safari and AMD drivers were updated? Was looking here http://support.apple.com/en-us/HT6572, but didn't see anything related. I 've updated base riMac to 10.10.1. Maybe see a little difference but still really bad after 5-6 windows opened. Had my fingers crossed. Was there anything else that you did to alleviate the lag in mission control?
Click to expand...

Well, Safari has a new version number.

And you can see updated kexts in /System/Library/Extensions, as usual.

I don't know what else might be different on my machine. As I mentioned, there is still a bit of struggling at 15 Safari windows but it is a marked improvement as I described.

I just cut things down to 5 windows for a test (along with the 5 other apps) and it is smooth. Someone else at one point had some difficulty with a large open window in Mail. Maybe there's some other app you have running there that is also causing problems?
 
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Coufu said:
It feels 10% better after the Yosemite update today, which isn't saying much. Even after turning on "Increase Contract", that makes it maybe another 25% better?
.
Click to expand...

placebo effect . . . . ;)
 
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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