Not a long time ago I updated Xcode to version 4. This new version spent a lot of time on indexing the project (it's quite large). That's why I would like to disable indexing. Searching through Xcode help and internet gave no results.
Open a terminal window and paste this command:
defaults write com.apple.dt.XCode IDEIndexDisable 1
You'll lose some features (autocomplete, jump to definition, some of the assistants won't work right). But you'll gain back ram and cpu.
For my project Xcode went from using 2 Gigs to a few hundred MB. (which I sorely needed to compile with ;))
Reducing the priority of the XCode process helps:
renice 10 -p PID
You can get the PID from the Activity Monitor or top/ps commands.
This problem has been noticed on this newsgroup:
The crux of it seems to be that XCode4 uses crazy amounts of ram during indexing - like, 5gb or so(!), and thus if you're on a machine with something like 12gb, there's no problem, but if you're on a laptop with only 2gb or so, you'll have some pretty severe paging going on.
I'm guessing apple's internal engineers were all rocking maxed-out mac pros or something.
I ran into either the same problem or something similar. My project includes heavily templated C++. Including those headers in the PCH file solved the problem for me.
My new retina Macbook pro running XCode 4 was extremely slow doing indexing (and everything else). My Mac mini at home was very fast working on the same project!? Turns out it was my anti-virus software - doing a scan of every file read or written on the MacBook. Turning that off sped everything up by a ton.
Slow indexing is not a given. And more memory isn't necessarily better.
I have a medium sized project for work ~ 500 source files. After deleting the derived data, it takes 18 minutes to finish reindexing this project. That's with no other apps open and not doing anything else with the computer. This is on a fairly recent Macbook Pro with 8G of memory and an i7. Horrible, right?
My home machine is a recent Mac Mini with 4G of memory and an i5. On that machine the exact same project takes 40 seconds to completely index.
I don't yet know what the difference is, but I'm working on it.
It's not possible to disable indexing in Xcode 4. Many of the IDE's features are built on top of the index it maintains.
Related
Since upgrading to xcode 7 and greater, the performance of xcode is terrible. When I click on a class or scroll the code pane it sometimes takes up to 30 seconds before reacting and often I need to force quit xcode and restart.
I have turned off source control and I am not using swift.
I have a new macbook pro with 8gb memory and an SSD. my computer is fast and has no other performance issues.
-UPDATE-
I have cleared derived data and am not using any unusual plugins
Does anyone know what may be the problem? I imagine some build setting is causing this but im not sure which.
The issue is totally with xcode 7.
try to commit/save every time you make some changes, it will increase some performance
I'm working on a big project and I have some serious problems with Xcode RAM management. In the informative app I'm working on I have over 90 UIVIewControllers on my storyboard. Once I open my project and go to my storyboard file (just changing labels, zooming in and out etc') it takes less than 2 minutes for Xcode to go from 400MB usage to 8 gigs.
This will only happen while I'm using the storyboard.
This never happened to me in other apps I've managed so I believe it got something to do with the size of this app.
The above was on a new MacBook Pro. To test things out I tested it on a Mac Pro with 16 gigs of RAM. First run, same issue. 16 Gigs of ram is used after less than 2 minutes.
Things I've tried:
Deleting DerivedData (the issue is on 2 different machines so it can't be it but tried it anyway)
Deleting project.xcworkspace
Read about stoping indexing BUT without autocomplete and quick help I'll have nothing to compile anyway
I'm using Xcode 4.6.3
sounds like it is a problem with that version of Xcode. I am using 4.6.3, and have never experienced this, (although the apps I work on are never that big). You should definitely try Xcode 5, even if you cant submit to the appstore, at least you'll be able to work on your app. Then you MIGHT be able to open it in version 4.6.3, and submit it from there, not quite sure it will work, but its worth a shot. Make sure you keep a copy of what you have so far incase your Xcode 5 version wont work in 4.6.3, so you dont loose your work. hope this helps.
I have installed XCode 4.2 on my macbook with specifications 2.1 GHz and 4GB of RAM. On few projects which were created using older version of XCode, my XCode slows down too much. It takes above 1.8GB of RAM and CPU Usage of about 153%. As result, my machine slows down too much and I experience very poor performance. I tried deleting workspace file from the project file but it also did not help much. One thing what I have noticed in Activity Monitor is that with XCode, there are one or two instances of Git as well. Is it the cause of this problem? Git instance is taking around 30% to 70% of CPU usage. Can anyone please help me in this regard?
Best Regards
Hi I fixed it by disabling SVN and Git plugins of XCode. Simply go to /Developer/Library/Xcode/PrivatePlugins
Now find IDEGit.ideplugin and IDESubversion.ideplugin
Change names of both of above plugins so that xcode will not be able to execute them in future. Now restart your xcode and enjoy better performance.
Best Regards
So usually when EXC_BAD_ACCESS happens when I'm debugging my (largely c++ based) iphone app, I can go over to the GDB window and it'll show me the current stack.
However, for some reason, lately XCode freezes. This happened on both xcode 4 and xcode 3.
By freezing, I mean the wheel of death just spins non-stop, and after a while, the whole OS becomes unresponsive. On many occassions, I had to turn off the mac manually.
Could this be a case of trashing? I'm compiling a 300 files, 150k sloc project on an old 2009 mac mini with only 1GB memory. Could this be the reason? I'm pretty close to just buying a new mac mini with 8GB memory, but it seems a bit unlikely that a 2 year old computer can't handle simple compilation.
Considering I use 2GB of RAM without even loading Xcode, your 1GB could well be a problem.
It also could be a recursive bug that causes the debugger a hell of a lot of work by having an enormous stack trace.
It might be an problem in some infinite while/for loop. Try to set break-point in all such kind of piece of code where while/for loop are used.
So after deciding to install Xcode 4 on my '09 mac mini because of how useful its instruments feature is (opengl stuff), it turns out that my mac mini only barely manages to run it.
In other words, it's crippled. I'm still here waiting for my program to run on the iPhone, and it's stuck with some "NSAutoreleaseNoPool" message.
The thing is, normally I would ask on how to fix that message, but currently XCode itself is frozen and not responding to anything.
Will upgrading from this old mac mini (it only has 1GB ram) alleviate this issue? Would the new mac mini with a 4GB ram upgrade suffice? IIRC it's core 2 duo 2.25ghz as opposed to my current 1.83ghz, would that make enough difference?
edit: not to mention, indexing cripples the performance to an extreme level
Especially when dealing with running VMs (i.e. an iPhone/iOS emulator), RAM is usually the choke point in my past experience.
I would think 4 Gigs of RAM should do it just fine. My Mac Book Pro has 4 Gigs of RAM and runs android emulators all the time and I'm still able to multitask.
Go into an Apple store and tell the guy you wanna demo the latest gen Mac Mini running XCode and its emulators and see if the performance if worth the investment. Its all Apple hardware/software so I don't see why they can't help you out.
8GB Ram
Since you can get already even 16GB Ram in Mac Mini (at least the newest), I cannot see why not take it? More here. Related threads mention very painful experiences with 1/2/4Gt particularly with Xcode 4. As far as I see it, 8Gt is becoming really a must-have, particularly when Xcode turns to 5.
Xcode 4 experiences
Minimum spec for Xcode 4?
http://www.cocoabuilder.com/archive/xcode/303406-xcode-4-system-requirement.html
https://apple.stackexchange.com/questions/14923/what-is-the-minimum-hardware-needed-to-run-xcode-4
Similar gettings slow threads
Xcode 4 configure to use less RAM?
Xcode suddenly very slow