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

Matthias46 said:
Since the GPU is still the same, your change would be irrilevant ;)
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I know :) it was an act of desperation. I wanted the i7 and extra RAM anyhow. still not capable of being productive on a 4k display.

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dtrace said:
I'm currently on Macvericks. Own a rMBP mid 2013, 16GB RAM and with a dedicated GPU. 10.10.2 was choppy as hell. Clean install and PRAM did not help, so I went back to Mavericks (super smooth now).

What I want to suggest: has anyone tried the latest 10.10.3 beta? Reports are that it improved animations...
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this is great to hear that Mavericks is better.. but have you tried to drive a 4k display. I just did 10.10.3 last night and there is no improvement.

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cherrybombaz said:
Basically, out of the countless things I've tested, the only thing that works is killing the windowserver process. This fixes the issue, but only temporarily.

I've even tested the 10.10.3 beta, but the issue is not fixed.

I can only conclude that is it a software issue and hope that Apple fixes this annoying problem. Now, I'm just stuck killing windowserver every hour or so.
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I tried `kill -HUP <window server PID>`, which brings me to login screen, kills all apps, etc. and it really didn't help much. nor did 10.10.3.

what a shame, this new machine can't really drive a 4k display above 1080p without catastrophic lag.
 
datafirm said:
I know :) it was an act of desperation. I wanted the i7 and extra RAM anyhow. still not capable of being productive on a 4k display.

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this is great to hear that Mavericks is better.. but have you tried to drive a 4k display. I just did 10.10.3 last night and there is no improvement.

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I tried `kill -HUP <window server PID>`, which brings me to login screen, kills all apps, etc. and it really didn't help much. nor did 10.10.3.

what a shame, this new machine can't really drive a 4k display above 1080p without catastrophic lag.
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My i7/16/512 early-2015 13" drives my Sharp PN-K322B without any lag at all, retina scaling applied. There must be something wrong with your display, or your setup.

For the record, I've my display connected over mDP.
 
yjchua95 said:
My i7/16/512 early-2015 13" drives my Sharp PN-K322B without any lag at all, retina scaling applied. There must be something wrong with your display, or your setup.

For the record, I've my display connected over mDP.
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what OS are you running. my display would not cause this lag, it's an obvious GPU issue.

Im running over displayport as well on the Dell P2715Q @ 2560 x 1440
 
This thread is making me worry, i've just ordered my i7/16/512 2015 rMBP. The deciding factor was its ability to push a 4k display without lag.

I currently have a late 2012 rMBP and I don't notice much lag tbh, so I probably don't fully know the issues you guys are discussing OR not noticed them.

My main concern is will this new machine be able to run a 4k display efficiently whilst doing multiple taks, e.g. PS, AI, DW, web browsing and youtube?

As I said, I don't think I fully understand/ notice the issues being discussed in here, as such will that result in me not noticing on the new machine?

Cheers
 
aodesigns said:
This thread is making me worry, i've just ordered my i7/16/512 2015 rMBP. The deciding factor was its ability to push a 4k display without lag.

I currently have a late 2012 rMBP and I don't notice much lag tbh, so I probably don't fully know the issues you guys are discussing OR not noticed them.

My main concern is will this new machine be able to run a 4k display efficiently whilst doing multiple taks, e.g. PS, AI, DW, web browsing and youtube?

As I said, I don't think I fully understand/ notice the issues being discussed in here, as such will that result in me not noticing on the new machine?

Cheers
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I have the exact same build that you ordered, and it runs fine on my Sharp PN-K322B at 3840x2160, 60 Hz. Photoshop doesn't lag as long as there isn't too many layers, and I'm always having a single Fedora VM running at all times.
 
yjchua95 said:
I have the exact same build that you ordered, and it runs fine on my Sharp PN-K322B at 3840x2160, 60 Hz. Photoshop doesn't lag as long as there isn't too many layers, and I'm always having a single Fedora VM running at all times.
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That's good to know, how many layers would cause a lag? in your opinion.

Also, I'm looking at the Dell P2715Q IPS monitor, would this work without issues?

Your help would be greatly appreciated !
 
Cmd-Z said:
Not sure it would have anything to do with it, but a new Mac will be occupied with some internal "housekeeping" for the first few days, so it could be temporary while files are indexed.
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What ??? For 72 hours a new Mac is so over taxed that performance suffers to this point. Nah.
 
To clarify, is the lag limited to Mission Control or related to pretty much all Core Animation? And is there *any* mac whatsoever that is exempt from lagging under Yosemite?
 
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Macula said:
To clarify, is the lag limited to Mission Control or related to pretty much all Core Animation? And is there *any* mac whatsoever that is exempt from lagging under Yosemite?
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in my experience the lag is system wide on all drawing functions and the resolution scaling makes it worse. the GPU on these machines is not very good, especially when working with WebGL.

sounds like Mavericks may have some issues with the scaling algorithm, so maybe a future release will fix this, but Im weary.. :|
 
Helpful clarification, thanks. Are Macs with "external" GPUs noticeably better in that regard? I vaguely recall reading that even the high-end 15" Macbook Pro and the high-end iMacs exhibit stuttering, which is very surprising if true, given that Apple has virtually ironed out such issues in iOS.

I am asking because, if even the faster Macs are laggy, it is reasonable to assume that the issue lies on the side of the software. If however the type of GPU is the discriminating factor, then indeed this might very well indicate that the 13" MB Pro is an underpowered laptop.
 
I just want to share my own experience. About a week ago I've purchased the new MBPr 13'.

I've got lag issues, but I found it to be triggered by some scenarios:
  • I use the laptop attached to a Thunderbolt Display, I've noticed that lag sometimes start to happen when I unplug or plug back the monitor.
  • Also I found lag sometimes start to happen when I open or close the laptop lid to use a extended desktop.
  • When I start a Virtual Machine in Parallels Desktop, most of the time it triggers the lagging issues.

And there are several other scenarios that I've noticed the lag to start. Now, if this starts to happen, a simply reboot solve the case.

In my opinion this is due some software issue, I really don't believe that a hardware as powerful as the one of this last generation would suffer from simple operations. I think we should push on Apple to check this out because some Operating System update may solve the case.

What you think?
 
SavMBP15 said:
What ??? For 72 hours a new Mac is so over taxed that performance suffers to this point. Nah.
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Windoze indexing does the same thing far even worse than OS X.

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Macula said:
Thanks for this report. Frankly, I don't yet know what to think. I urgently need a new machine with a 512GB SSD but remain very reluctant to shell out over $1500 for a device that stutters like that. :mad::(
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I tried this new rMBP at a brick and mortar store and opening all of the preinstalled apps + switching them using Mission Control, spaces, launch pad, show desktop gestures does induce the lag on mission control. On 15" Haswell rMBP with Iris Pro 5200, the lag is non existent.
 
Very interesting. So the Iris Pro of the entry-level 15-incher suffices, and the NVidia of the high-end 15" model is not necessary to eliminate the issue.
 
redheeler said:
I really don't get why some people refuse to except the new look, especially those with Retina displays :confused: To me it looks very modern and nicely optimized for Retina displays.
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I actually like yosemite's look better than mavericks, but the retro (early windows) flat look is far from modern.
 
cbautis2 said:
Windoze indexing does the same thing far even worse than OS X
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I haven't experienced that. I have experienced screen tearing with bootcamped Windows 7 that I don't typically see in OSX. That's a different issue though.
 
Macula said:
Very interesting. So the Iris Pro of the entry-level 15-incher suffices, and the NVidia of the high-end 15" model is not necessary to eliminate the issue.
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Nope at least in the 15" base level at best buy store
 
cbautis2 said:
Nope at least in the 15" base level at best buy store
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Good find. But a bad sign. Might indeed be the case that os x is too graphics-intensive for the plain Iris. But it is just mind-boggling that the same issue has persisted since the days of Leopard. I clearly remember my X3100-equipped black Macbook suffer when rendering the Dashboard and exposé animation, for instance, while models with external video circuitry (then "Macbook Pro") had no problems. But isn't today's Iris faster than the external GPU of 2008?? It feels like a perennial curse or evil strategy (much as I'm sure it's neither).
 
There is no way in hell a rMBP 2015 (owning one myself for two days now) isn't sufficient to run Yosemite animations smoothly from a hardware perspective.

This is just poor programming from Apple's part and we've seen this a lot over the last couple of years. Even with iOS, 8.3 Beta 4 is the first that doesn't lag all over the place for my 6plus when scrolling through stuff.
 
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Been experiencing this as well. I sort of held off a new macbook purchase until a new iGPU revision that was promising a neat performance bump would be released, as I plan on pretty much always using scaled 1680x1050. The real-estate offered in "best for retina" is just a huge waste of pixels, imho.

Soo. Got the macbook, put it on 1680 and was disappointed to see that it still would lag with some easy UI animations. Oh well, after all scaled resolution means I am letting it render "3360x2100" in reality, so I thought maybe I had expected too much from it.

But today I set it to "best for retina", just for the sake of testing it out. (Again, what a huge waste of pixels..) The lag persists! I can't even notice any difference.

I hope they can optimise this a bit better. Computer's brand new and it wasn't cheap. If they have to simplify some animations, do it!
 
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