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
Related
Installed Mountain Lion and Xcode5. Tried to open a project recently developed for iOS6. And now xcode is dramatically slow. Any ideas whats wrong with him now?
EDIT
It works fast with new projects I create. It slows down only when I open the old projects.
Ok. I found the problem. The screen attached.
When I switch 'Opens in' to Default 5, Xcode changes the UI Presentations to ugly iOS7 design and xcode suddenly starts work fast like in good old times. Switching back to 4.5 brings the very slow performance back. Thats it guys!
It reminds a problem I had with xcode 5 ( also mountain lion), the typing was very slow..
what help to fix this was removing all breakpoints ( I had nice and big list of breakpoints)
It seems to be keeping previous windows open too, so the more you switch between source files or XIB's, the more it will lag. I didn't check the memory use, but maybe it's running me out of RAM since I have a limited amount free with my Windows VM running. Quite annoying, but it works for me to close and reopen Xcode when this starts happening.
My Xcode version is 4.6.2, which is the latest at this moment 2013.6.2, when I try to run a project(not a specified one) in simulator, it randomly freezes(stops) at indexing. I don't know if it's my macbook's problem because it's relatively a old one. My project is very light-weighted, just some demo. I'm a newbie. Normally, it works well, but sometimes it freezes at indexing, say 5% possibility.
And I cannot stop it even I clicked the "Stop" button at the right of "Run", and either if I close the simulator. I have to force the computer to shut down by keep pressing the power button. It brings damage to computer.
Anyone knows how to fix this? Or I have to get a newer one? Any help will be appreciated. THANKS.
Screenshot:
Xcode 4.6.2 in 1.4GHz, 2GB Ram
This is the main problem, the Xcode needs 2GB+ itself, and there are others applications and processes running in foreground and background.
I have 3GHz C2D, 4GB RAM, still at times it hangs at times :(
So, either you need to upgrade the hardware or degrade the Xcode version.
EDIT:
As you have Macbook air, you cant upgrade the RAM which is soldered to the motherboard.
I recently updated my MacBook Pro (2.3 GHz Intel Core i5) from Lion to Mountain Lion and simultaneously upgraded Xcode to the latest 4.5 version. I've experienced one very irritating problem. While programming I'm used to have a couple of tabs opened at a time. Ever since I updated, each time I switch tabs, Xcode freezes up for a bit (a couple of seconds). Does anyone have a suggestion to solve this problem?
I followed a tip on deleting project.xcworkspace to improve performance. Which seamed to help, but only for a short period of time.
It's a common issue and was fixed in XCode 4.5.1.
https://devforums.apple.com/thread/167765?tstart=0
If you have multiple partitions (maybe a backup of Lion was kept) ensure that xcode really comes from the Mountain Lion partition.
The App Store App update for Xcode seems to take the first Xcode.app it finds and will apply any update to that version. In my case it updated the (inactive) Lion partition, even so I booted from the ML partition.
xcode-select did not complain when I tried to change it to the ML version.
So I ended up doing the great housekeeping:
do a chmod 000 /Volume/<old Lion partition>/Applications/Xcode.app
installed a fresh copy on Xcode.app into /Applications
verify the destination of the dock icon (must point to the ML Xcode.app)
My Xcode is now fast as before and it remains fast. You can get the Xcode dmg and the command line tools from https://developer.apple.com/downloads/index.action. I don't think there is a difference in the binaries, but with the DMG I could see where I dropped the Xcode.app.
I found your question before I discovered a partial solution.
As of today, I find XCode 4.6.1 GUI dog slow for my taste, specially considering that I run on a one year old mac, SSD, compile to a 2GB RAM disk and still have 6GB RAM left. Even Eclipse runs lightning fast compared to XCode
4.5.1 did improve something, but after a long time using XCode I do not have any hope for some of its problems being solved ever.
That being said, I have noticed that "Live issues", the main tool bar and all the panels slow down tab switching to same degree. The biggest offender so far are the navigator panels.
Once I got used to a minimalistic Xcode window, layout some specific task tabs, keep a separate window for xibs and learned the shortcuts to enable/disable the panels, I no longer suffer so much with XCode responsiveness, but there is still some lag that can be clearly felt.
Check that there is not heavy coding on ViewWillDisappear.
Also if you have NSURLConnection or any other having delegate methods should not get called while switching tabs.
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
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.