Ridiculous performance after alt-tab?

yalag

macrumors 65816
Original poster
Nov 18, 2007
1,344
55
I just bought the retina macbook pro with 16gb ram. I thought this machine will have decent performance but I can't even alt-tab from a game (starcraft 2). Whenever I do, the computer gets so slow I can barely type. Every action is delayed by 1-2 seconds.

What's wrong with the macbook or OSX? When you alt-tab it should suspend the application. Even windows 95 does that!!
 
Nov 28, 2010
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Do you by any chance mean COMMAND + TABULATOR instead of Alt/OPTION + TABULATOR?
And where does Windows 95 suspend an application when not being active?
 

iaymnu

macrumors 6502
Mar 23, 2007
327
0
I just bought the retina macbook pro with 16gb ram. I thought this machine will have decent performance but I can't even alt-tab from a game (starcraft 2). Whenever I do, the computer gets so slow I can barely type. Every action is delayed by 1-2 seconds.

What's wrong with the macbook or OSX? When you alt-tab it should suspend the application. Even windows 95 does that!!
I have no problem with that. I do it all the time with Diablo3. Runs normally and no slowing at all. Which OsX are you using.
 

yalag

macrumors 65816
Original poster
Nov 18, 2007
1,344
55
I have no problem with that. I do it all the time with Diablo3. Runs normally and no slowing at all. Which OsX are you using.
Maybe d3 is different from sc? Do you also have sc?

Others who play sc can share their experience?
 

Vctr

macrumors regular
May 24, 2012
209
2
I play SC2 and I have no issues Command + Tabbing out. Are you sure you're running on discrete graphics?

Also be sure to uncheck the option "Reduce Mouse Lag" ... I've found that this really screws with the performance.
 

yalag

macrumors 65816
Original poster
Nov 18, 2007
1,344
55
I play SC2 and I have no issues Command + Tabbing out. Are you sure you're running on discrete graphics?

Also be sure to uncheck the option "Reduce Mouse Lag" ... I've found that this really screws with the performance.
How do I make sure I am running on discrete graphics?
 

AZREOSpecialist

macrumors 68020
Mar 15, 2009
2,117
925
Installing GFXCardStatus will cause more problems than it will solve. This does not sound like a GPU issue, it sounds like something else is going on.
 

yalag

macrumors 65816
Original poster
Nov 18, 2007
1,344
55
wait what resolution are you guys running the game at? I'm running it at max resolution and then command tabbing.

I also have a few findings.

1) Everything becomes non-retina after I command tab. For example the text becomes blur etc.

2) If I use full screen windowed mode, command tab will not slow down the computer! But it will continue to blur...
 

iaymnu

macrumors 6502
Mar 23, 2007
327
0
wait what resolution are you guys running the game at? I'm running it at max resolution and then command tabbing.

I also have a few findings.

1) Everything becomes non-retina after I command tab. For example the text becomes blur etc.

2) If I use full screen windowed mode, command tab will not slow down the computer! But it will continue to blur...
I run maxed res. I never had problem 1. But I get like a checkered plaid screen mumbo jumbo when I first boot up a game from cold start. I'm guessing it's a glitch (hoping!!)