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Hey guys, 10.10.3 is out... so could you please post back if you notice any improvements on UI performance? Thanks!
 
It's better. Just installed on my Macbook Pro 15 retina (original one), Im using scaled resolution too.

It's definitely better. Expose is way more responsive, theres less delay and stutter, switching between spaces is smooth. It's still not 60fps (looks like 25-30) but the initial delay and completely broken animations are gone. (this is while running iTunes, Lightroom, Photoshop, Safari 20 tabs, Evernote, Fantastical and Ulysses)

It's definitely more responsive than the Apple Watch haha
 
I just installed it in my old iMac 2008 and indeed, improvement is noticeable. Not perfect, but quite good. Now, If I turn off transparency, UI is just as responsive as Snow Leopard, especially with Mission Control.
 
Installed the update on my Pro 13" Retina Mid 2014, and it worked smooth for a while, as after all the previous updates, but, with time, it gets worse, so after a few hours, it started to lag much worse than even the last beta.

The problem is not fixed yet. I miss the days of Snow Leopard.

Still waiting for a miracle... first time I am disappointed with Apple. Miserable OS X release. Shame!
 
Installed the update on my Pro 13" Retina Mid 2014, and it worked smooth for a while, as after all the previous updates, but, with time, it gets worse, so after a few hours, it started to lag much worse than even the last beta.

The problem is not fixed yet. I miss the days of Snow Leopard.

Still waiting for a miracle... first time I am disappointed with Apple. Miserable OS X release. Shame!

Damn, that's disappointing. Thought this update would solve the problem. At this rate I might just wait for 10.11 to be released before upgrading since that's supposed to be a maintenance release.
 
Damn, that's disappointing. Thought this update would solve the problem. At this rate I might just wait for 10.11 to be released before upgrading since that's supposed to be a maintenance release.

Yeah, you better avoid it! I also partitioned my SSD and installed Mavericks alongside, just to rule out any hardware problem, and I have to say that Mavericks works great on my Retina 13inch Macbook Pro from 2014.

On the other hand Yosemite works great on my 2012 Air.

So from these 2 facts I could say that it's a driver issue, probably from the graphics chip.

From what I've read so far it seems like macs with the Intel Iris chip have this problem. Poor yosemite drivers for Intel Iris. Mavericks works great on those machines, Windows the same, works great... Apple fix Yosemite, wtf!?!?
 
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Even the latest 15" 2014 rMBP w/ 2.8ghz lags in yosemite. Even with the discrete gfx card being used, at 1920x1200 its not always able to do UI animations at 60hz. For example, the first time notification area is opened in a while it isn't perfectly smooth. Once open, keep opening and closing it after that and its 60hz. Safari also doesn't scroll always at 60hz. sometimes there are small judders.

I've filed a bug report, and its nothing I can't live with, but there is no good reason any animation should be under 60hz. EVER.

Lets hope they fix it across the board with a software or driver update

BTW I find 10.10.3 has improved things a bit over 10.10.2, but still lags.
 
Even the latest 15" 2014 rMBP w/ 2.8ghz lags in yosemite. Even with the discrete gfx card being used, at 1920x1200 its not always able to do UI animations at 60hz. For example, the first time notification area is opened in a while it isn't perfectly smooth. Once open, keep opening and closing it after that and its 60hz. Safari also doesn't scroll always at 60hz. sometimes there are small judders.

I've filed a bug report, and its nothing I can't live with, but there is no good reason any animation should be under 60hz. EVER.

Lets hope they fix it across the board with a software or driver update

BTW I find 10.10.3 has improved things a bit over 10.10.2, but still lags.

Since the 10.10.3 update, I got a bug that I can't live with, and it's really horrible, from 30 to 30 seconds the system freezes for about 2 seconds than resumes. I'll fresh install 10.10.3 on another partition to see if it goes away or not. Can't get work done in this manner...
 
Since the 10.10.3 update, I got a bug that I can't live with, and it's really horrible, from 30 to 30 seconds the system freezes for about 2 seconds than resumes. I'll fresh install 10.10.3 on another partition to see if it goes away or not. Can't get work done in this manner...

I was thinking – you don't happen to have something suspicious in /Library/LaunchAgents and/or /Library/LaunchDaemons ?

It could be that there is something running that triggers the slowdown. I'd also check Activity Monitor.app and sort by CPU usage to see if there's some process that users more CPU than it should.

For me OS X 10.10.3 is running just fine.
 
I was thinking – you don't happen to have something suspicious in /Library/LaunchAgents and/or /Library/LaunchDaemons ?

It could be that there is something running that triggers the slowdown. I'd also check Activity Monitor.app and sort by CPU usage to see if there's some process that users more CPU than it should.

For me OS X 10.10.3 is running just fine.

Hmm, thank you for the hint! I'll give it a look and see what's going on there.

Btw, could you please provide the specification of your computer on which you run OS X Yosemite? It's interesting to know because I'm trying to narrow down and see on what type of hardware does Yosemite lag.
 
I also have it !!

I ordered the MBP 13 2015 i5 version 8gb with 256g pci last week online (from Paris) and I confirm the issue..
It s my first apple machine so I imported nothing to my new icloud account.

I directly noticed slowness when launching the launchpad or when I open I window or minimize it.. I also found safari slow comparing to chrome..

My wife have the MPA 2013 and it is faster .. No issue

I don't have battery issue.. Like some people in the forum.. I stopped to use chrome to use safari I heard that chrome is a bad battery consumer (I use the browser only for YouTube so I don't care all the internet tasks I do it on my phone)

I guess it a related to yosmite I don't believe that a i5 new generation bi processor cannot animate a window... But still not acceptable for an expensive machine !

Hope ther is an update soon (the last update did nothing)


:D
 
I ordered the MBP 13 2015 i5 version 8gb with 256g pci last week online (from Paris) and I confirm the issue..
It s my first apple machine so I imported nothing to my new icloud account.

I directly noticed slowness when launching the launchpad or when I open I window or minimize it.. I also found safari slow comparing to chrome..

My wife have the MPA 2013 and it is faster .. No issue

I don't have battery issue.. Like some people in the forum.. I stopped to use chrome to use safari I heard that chrome is a bad battery consumer (I use the browser only for YouTube so I don't care all the internet tasks I do it on my phone)

I guess it a related to yosmite I don't believe that a i5 new generation bi processor cannot animate a window... But still not acceptable for an expensive machine !

Hope ther is an update soon (the last update did nothing)


:D

Welcome to the club! I gave up on waiting today (waiting for months and months and still no fix to this problem), and I officially switched back to Mavericks, until the next iteration of OS X arrives. Yosemite is dead to me.

Everything is smoother in Mavericks, no lags at all!
 
im having UI lag as well, but also massive lag in photoshop without even opening up huge files. this just happens with small files: take a look

https://www.youtube.com/watch?v=Gu7ZLcmaLd0

Just panning the screen around and theres tons of redraw lag as well as when moving a layer around. so tired of this
 
Even the latest 15" 2014 rMBP w/ 2.8ghz lags in yosemite. Even with the discrete gfx card being used, at 1920x1200 its not always able to do UI animations at 60hz. For example, the first time notification area is opened in a while it isn't perfectly smooth. Once open, keep opening and closing it after that and its 60hz. Safari also doesn't scroll always at 60hz. sometimes there are small judders.

I've filed a bug report, and its nothing I can't live with, but there is no good reason any animation should be under 60hz. EVER.

Lets hope they fix it across the board with a software or driver update

BTW I find 10.10.3 has improved things a bit over 10.10.2, but still lags.

are you sure you know what your talking about? i have a maxed out 15" and I have absolutely no UI lag, anywhere.
 
Due to lack of compatibility with some apps, I've went back to Yosemite, this time to 10.10.4 beta.

I can confirm that the lag is still present.
 
There is UI lag with the 5K iMacs. Seems to be a common thing with the Retina Display Macs. I have a 2012 15" MacBook Pro with Retina Display and it too lags at times. It certainly is better with Yosemite compared to when I got the machine back with OS X Lion.

The UI lag seems noticeable with Mission Control, Adobe apps, scaled resolution and etc. The only way to really see it disappear is not to use any of the Hi-DPI resolutions with an app called Pupil.

The issue with that though is you lose that beautiful crisp look.
 
Only sort of related... A 13" MBP with dedicated video would be really nice.

They should do it, but keep it dual core. Now that the Air is going to be dead and the MacBook is established for consumers they need the make the pro line as pro as they can. Keep them the same thickness they are now but keep cramming as much power as they can. For pro machines they don't need to be any thinner.
 
Since the 10.10.3 update, I got a bug that I can't live with, and it's really horrible, from 30 to 30 seconds the system freezes for about 2 seconds than resumes. I'll fresh install 10.10.3 on another partition to see if it goes away or not. Can't get work done in this manner...

What software do you have installed - anything that digs deep into the OS like 'little snitch' or a virtualisation software like VMWare or Fusion?

My specs are:

MacBook Pro (Retina, 13-inch, Early 2015)
3.1 GHz Intel Core i7
16 GB 1867 MHz DDR3
Intel Iris Graphics 6100 1536 MB

No problems here, clean install of 10.10.3, no third party extensions, tweaks etc. with pretty much all the software I run straight from the AppStore (bar XLD and iFFmpeg).
 
What software do you have installed - anything that digs deep into the OS like 'little snitch' or a virtualisation software like VMWare or Fusion?

My specs are:

MacBook Pro (Retina, 13-inch, Early 2015)
3.1 GHz Intel Core i7
16 GB 1867 MHz DDR3
Intel Iris Graphics 6100 1536 MB

No problems here, clean install of 10.10.3, no third party extensions, tweaks etc. with pretty much all the software I run straight from the AppStore (bar XLD and iFFmpeg).

Nope, nothing that digs deep, even on a fresh install it chokes. I've tried everything. My specs are lower than yours. I5, 8gb ram, Iris 5100
 
Hmm, thank you for the hint! I'll give it a look and see what's going on there.

Btw, could you please provide the specification of your computer on which you run OS X Yosemite? It's interesting to know because I'm trying to narrow down and see on what type of hardware does Yosemite lag.

At work I have a MacBook Pro (15", Late 2011) with 1 GB Radeon 6770M graphics and 16 GB RAM (Intel HD 3000 as integrated graphics). The CPU is the i7 four core 2.4 GHz version.

I have it connected to a 1920 x 1200 screen and it handles it well I think.
 
At work I have a MacBook Pro (15", Late 2011) with 1 GB Radeon 6770M graphics and 16 GB RAM (Intel HD 3000 as integrated graphics). The CPU is the i7 four core 2.4 GHz version.

I have it connected to a 1920 x 1200 screen and it handles it well I think.

You have a pretty specced out machine there. And you don't have an Intel Iris graphics chip, which leads me to think that the machines affected are just those with Intel Iris graphics.
 
New 2015 MBP 13" with i7 and 16GB ram. Having stutter with UI alot, specially when resizing windows. Hope apple fixes it.
 
Retina displays simply take an insane amount of horsepower to drive the UI. I'm using a non-retina 2012 MBP with Intel HD 4000 graphics, and just about everything in Yosemite except for the Finder runs completely smooth and lag-free. It's a tradeoff, but I think most people would rather have a Retina display with a little bit of lag than a non-Retina display that runs buttery smooth.
 
Retina displays simply take an insane amount of horsepower to drive the UI. I'm using a non-retina 2012 MBP with Intel HD 4000 graphics, and just about everything in Yosemite except for the Finder runs completely smooth and lag-free. It's a tradeoff, but I think most people would rather have a Retina display with a little bit of lag than a non-Retina display that runs buttery smooth.

I also have a non-retina 2012 Macbook air with intel hd 4000 graphics and the lag depends on the usage. It can handle more windows without lag in comparison with a retina model, but when the windows pile up, the same lag is present on the non retina model also. Tested it on my machine and also on a friend's machine.

"A little bit of lag" is not the case, in many cases the machine becomes unusable with the amount of lag it has.
 
I can confirm that OS X Yosemite 10.10.4 Public Beta 14E11f (that came out yesterday) has performance improvements in launching apps, window resizing, mission control, notification center, etc.

The UI Lag is still here, but it has been fixed by 30-40%. At least in my case. Still not happy, but if it continues in this trend I think by the end of the beta we have a fix for this problem!
 
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