There is a Energy Profile in Xcode 12. But can't see this any more in Xcode 14. And even more, it's always showing Insufficient Metrics Data for our 5k users app in Xcode organizer. I'm wondering what is the best way to measure the battery usage and find out where to reduce the battery usage.
Related
I have mac os mojave and xcode Version 10.1 (10B61). I try build unity3D game. I can successfully build it to iphone 5S device. But when I try submit up to App Store it is not working.
What exactly happens:
On step "fetching app store configuration" xcode freezes. In active monitor I see it as unresponsible application (or something like it). And XCode take almost all free RAM (4.5GB). After sometime (around 20 minutes) mac restart (I have problem with iMac, it restart when use too much RAM, I don't think it related to xcode)
Actually, if I wait long enough (more then 15 minutes) it is start working.
XCode require a lot of RAM + SWAP
Here's an answer for someone who stumbles upon this later, I just want to share what helped me. I also ran into the same problem while trying to distribute a Unity-built game with Xcode (also contains pods).
I work on a MacBook Air 2013 with only 4GB of RAM, so whenever I do anything with Xcode, I first close everything other than Xcode, Finder and Activity Monitor. As soon as I start whatever it is that usually freezes Xcode, I switch to Activity Monitor and track what's happening with the memory.
In the case of freezing while "Fetching App Store Configuration...", the problem appeared to be RAM, more precisely SWAP. I did not have enough memory available on my hard drive, which Xcode tried to use for SWAP and just... well, failed. So I cleaned up my hard drive and finally it went through very smoothly, but it occupied about 9GB of RAM at its peak (5.4GB in SWAP).
So just try to have enough memory available to feed the beast, observe what's happening in Activity Monitor and you should be good.
Im experiencing high CPU Load when I open my Xcode and
it bothers me because it affects my productivity, my xcode keeps on compiling when i type a code and it also takes time to give the suggested code (e.g) Intellisense
This is the CPU load when I open Xcode,
look at the graph. I dont know if this normal or what.
Here is my device specification
I ran into this problem when iOS 10 was released. They are updating their device definitions so fast, that our small dev team can't match their speed. In result we need to develop on previous versions. But now our app crashes on 10.1 and we cannot debug. We need to wait for whole download to happen. Is it so hard to manage dev disk image to a place ? do they maintain disk image? or any other solution to the problem.
I was recently trying to make my iOS 6 compatible app work with iOS 7 (noted still in beta). So i had my boss install iOS 7 on his iPhone 4S. We noticed that camera picker was slow and not responsive, and when we take a picture everything freezes. When i run the profile with memory allocations i notice that we have a really high memory usage : 160 MB. and btw we received a loot of memory warnings. So i tried running on the iPhone that still has ios6 and the maximum memory spike was 16 MB. Has anyone encountered this problem? Thank you
I do observe different Memory numbers on iOS 6 & iOS 7.
I have an app that makes use of openGL (a 3D viewer), and of AVFoundation (my own camera implementation, with AVCaptureDevice...)
I ran the app on iPhone 4S with iOS 6, and on iPhone 4 with iOS 7, my observations so far :
Allocations, Dirty & resident VM sizes reported by Instruments seem higher on iOS 7 than iOS 6 (50% to 100% higher)
BUT
I get much less Memory warning with iOS 7 (although I probably would have to repeat these tests to get more reliable results)
In iOS 7, apple introduce more restriction on memory allocation for single instance. If the single thread uses more memory it should crash.
This is not only related to native application but also related to hybrid app.
Ex: Google Maps getting crashed only in iOS 7, if it uses more memory. You can able to get more information in the below link.
Crashes in iOS7
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