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2015 Macbook Pro's Intel Iris 6100 is so choppy in Yosemite

HarryT said:
Running 3 monitors without a dGPU is not a priority.. Not sure how you can expect anything at all running three monitors without a dedicated card or am I missing something here?
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I have an expectation that it runs smoothly because it used to run smoothly under Mavericks and because Apple even gives me this option in the first place.
 
Did anybody install El Capitan beta as main system in the first days? How does Mission Control and the UI perform on "longer" run currently?
 
I installed it on my main machine but it crashes quite often (a couple of times every day) so I'm not sure about how it runs after a few days. However, it does run very well after about 6-7 hours.
 
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kevmodrome said:
I installed it on my main machine but it crashes quite often (a couple of times every day) so I'm not sure about how it runs after a few days. However, it does run very well after about 6-7 hours.
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Wow, this is not typical I assure you. There is an El cap section in this forum and people are very happy with it. There is no crashing. I am running it on my 2015 13" rMBP and my mid 12 11" air and it runs flawlessly. I have been running it for days at this point. The UI is smoother than Yosemite, and I have not had one crash ever. Its gotten great reviews. YMMV.
 
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Since my last post I installed El Capitan for my main system, and use it every day. Sure, it is beta, it has to be rebooted once in every 3-5 days, but I can confidently state: Mission Control lag is fixed. After 5 days of heavy usage and my 3 monitor setup it is still buttersmooth.
 
I have Early 2015 rmbp 13" and without external monitor i have no lag, but once i connect with my 4k 60hz external monitor dell up414q through thunderbolt with mini dp to mini dp connector, i get a lag on the external monitor, even though it is display port 1.2 enable and when i check i see that it runs at 60 hz. But the lag makes the external monitor useless to use..
actually it is running perfect with iMac 21 inch as external monitor
any suggestions to overcome?
 
I think it was not mentioned before: swipe to delete (like demoed in Mail) is working in Messages app too.

EDIT: Ooops, somehow this post went to wrong topic. Sorry guys.
 
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Animation smoothness increased dramatically on my MacBook Pro (Retina, 13-inch, early 2015) after installing OS X Yosemite v10.10.4. Especially Notification Center was really bad but things are fine now, much like what I was used to on my iMac.
 
It doesn't improve at all. I am still experiencing a lot of frame rate lag with pdf files while zooming in and out. 10.10.4 does nothing at all. Most likely all the fixing will be on El Capitan.
 
creamz said:
It doesn't improve at all. I am still experiencing a lot of frame rate lag with pdf files while zooming in and out. 10.10.4 does nothing at all. Most likely all the fixing will be on El Capitan.
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I think the problem of 'lagging UI' means different things for different people. It consists of dozens of unconnected issues. They fixed some of them, like the Mission Control lag and Finder's scrolling, but others are unrelated, like Safari window resizing and PDF zooming, what you mentioned. (By the way, PDF zooming is MUCH faster for me, because it used to render the whole page in full for every zoom level, and now it renders only the visible area.)
 
gklka said:
I think the problem of 'lagging UI' means different things for different people. It consists of dozens of unconnected issues. They fixed some of them, like the Mission Control lag and Finder's scrolling, but others are unrelated, like Safari window resizing and PDF zooming, what you mentioned. (By the way, PDF zooming is MUCH faster for me, because it used to render the whole page in full for every zoom level, and now it renders only the visible area.)
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When I read your post, I opened the same file on Preview and found out to be much better. It is more fluid but still spotted some occasional hiccups. Don't know how I ended up with Adobe reader as primary. The same file zooming in and out on Adobe is terrible.
 
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TheSandman said:
Im on El Capitan in a RMP late 2013 and still have some minor UI lag, mainly scrolling on safari and chrome and resizing windows :(
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Resize speed is the responsibility of the app itself. OS X has nothing to do there. Scrolling in Safari was always 60 fps on me (with normal web pages, not brutal-js-power-hungry-parallax-monsters). Same machine.
 
Safari (v9)
- Smooth on a 2012, 4core i7 cMBP 15" with dGPU. (El Cap, 16GB RAM)
- Slightly choppy on a 2011, 2core i7 Mac mini with dGPU. (El Cap, 8GB RAM)

Chrome (v45)
- Really smooth on a 2012, 4core i7 cMBP 15" with dGPU. (El Cap, 16GB RAM)
- Smooth on a 2011, 2core i7 Mac mini with dGPU. (El Cap, 8GB RAM)
- Smoothest out of all 3 on a PC, 4core i7-3770 and GTX 970. (Win10, 32GB RAM)
 
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