In my iOS project, there is an infrequent crash related to virtual memory problem. Therefore, I plan to use UITest in combination with Product/Perform Action/Profile "TestCaseName" to conduct Game Performance-type testing. This allows the automatic testing to continuously operate until the profile stops recording upon a crash. This enables me to observe the various states of the program at the time of the crash. However, I have found that the UITest using Profile is highly unstable. The UITestCase often terminates unexpectedly during execution, leading to failed tests (Instruments is still working). Sometimes, the app is terminated immediately after startup. It seems that the use of sleep() in the code can easily cause interruption issues, which do not occur during normal UI testing. I am wondering if anyone has experience using Profile for UITest and whether they have encountered the issues I described." Working Environment: XCode14.3.1, iPhone Device iOS17.2

When I use Instruments to record Allocation, the phone will display a dialog box indicating that the phone is unlocked when the screen is locked, as shown in Figure 1. When I have started recording allocation and lock the screen 10s later, the allocation can be recorded normally. For details, see Figure 2. I want to know why. Start recording for 10s and lock the screen on the device. The recording can be performed normally. What is the principle of this?

Instruments freeze when WKWebView is created I create a very simple mac os application If I create a WKWebView like this " (void)viewDidLoad { [super viewDidLoad]; // Do any additional setup after loading the view. self.webview = [[WKWebView alloc] initWithFrame:NSMakeRect(0, 0, 500, 500)]; } " Then the instruments freeze when I record allocations Why? If I remove the creation of WKWebView, everything works fine I'm using Xcode 14.2

I just downloaded Xcode 15 RC and iOS 17 RC on an iPhone Xr. When running the app it seems to run fine however when trying to run in profile mode I get the error: Failed to install embedded profile for com...* : 0xe800801f (Attempted to install a Beta profile without the proper entitlement.) Verify that the Developer App certificate for your account is trusted on your device. Open Settings on the device and navigate to General -> VPN & Device Management, then select your Developer App certificate to trust it. Does anyone have any insight into what the issue may be? There is nothing to select within VPN & Device Management when I navigate there

Steps to reproduce: Open Instruments app Settings Select recording tab (Next to General) Click Open Keyboard Shortcut preferences to produce the aforementioned error. Profiler Version 15.1 (15C65) - Instruments macOs 14.1.2 (23B92) Thanks all.

I'm tracing a process, specifically focusing on the Metal device track, which records frames from other processes like Terminal, WindowServer, and sometimes processes that utilize the GPU. I attempted tracing with all apps closed and only Instruments running. However, it also records traces for Instruments. This behavior wasn't present in previous versions of Instruments. Was there a recent change in Instruments/Xcode 15.0.1? I cannot find any relevant information about this in the release notes either. Is there a way to configure Instruments to record only the running process?

Hi, I have a few traces where I have samples for kernel (and other processes), yet kernel is always 0 for any CPU Counter selected. There are other processes with an equivalent number of samples where the counter values appear. Perhaps there is a bit of 'art' to get the kernel counters to populate? I am trying to understand the workload from the system perspective (not simply the narrower process perspective), and it would be helpful to have the counter values. I've tried running for extended durations, yet that doesn't seem to adjust the counted events. I've adjusted to include "High Frequency Sampling" to resolve issues with VMware counter collection. Yet.. I need help to enable counter values to appear for kernel. Sam

➜ ~ xctrace version xctrace version 15.0.1 (15A507) in my project, i use xctrace record command to attach exist app process, it high probability lead app hang, but attach is ok; how can i solve this problem?

It seems this ops shows up many times, can anyone tell me what it is plz.?

Hi, I'm using Instrument to profile my metal app, found a metric called display ( average frame time ) shows much longer than what expected. Is this truly the frame time ? Or did I misunderstand something ?

Hello, I have a macbook for 1 year and I could never use Instruments Leaks. I always get these messages: ) I have already reinstall my mac, I use the Xcode version 15, I tried to delete and reinstall Xcode. Nothing is working. Can somebody help me please?

this encoder happens to make gpu bubble, wondering what it is , and how to get rid of it, thx.

as you can see, gpu performance start earlier than gpu activity, i don't know why? thx

I'm using instrument to profile my metal app, found there are more than one display devices shows on my view, I'm wondering what these display devices mean, thx .

I would like to be able to collect profiling data on a physical device, say when I am going for a run, and later analyze that data using instruments. Is there a way to do that?

Instruments CPU Profiler failed to start the profilable app (get-task-allow is set to true) with error "No PMI Record Found". Device is iPhone 13 Pro currently running iOS 17.0.3. Tried to profile in instruments shipped with Xcode 14.3.1, Xcode 15.0.1 and Xcode 15.1 Beta, same issue across. If it helps, I was able to successfully profile on iPhone X running iOS f16.7 using Xcode 14.2 instruments.

Error info is below. Time Awake Since Boot: 1500 seconds System Integrity Protection: disabled Crashed Thread: 13 Dispatch queue: com.apple.dt.frame.activity Exception Type: EXC_BAD_ACCESS (SIGSEGV) Exception Codes: KERN_INVALID_ADDRESS at 0x0000000000000009 Exception Codes: 0x0000000000000001, 0x0000000000000009

The Leaks Instrument in Sonoma never reports any leaks. This is happening on Sonoma only. Instruments on Ventura reports the leaks appropriately. This feels like a bug in Instruments on Sonoma, but I wanted to check in here to see if maybe I'm doing something wrong. Steps to dupe: On a Sonoma machine, create a Mac OS Application Project in Xcode, using xibs and Objective-C. In the app delegate create a method: - (IBAction)leak:(id)sender { NSLog(@"LEAK!"); int* ptr = ( int* )malloc( 5 * sizeof(int) ); } In the MainMenu.xib, create a button in the window and connect it to the leak action. Build and Run. Launch Instruments and choose the Leaks tool. Attach Instruments to your running application and start recording. Click the Leak button in your app any number of times. Stop recording in Instruments. RESULT: Instruments reports no leaks found. WORKAROUND: To see leaks on Sonoma I can do so in the Terminal using leaks with these steps: Launch Terminal export MallocStackLogging=1 leaks -atExit -- /Users/zack/Library/Developer/Xcode/DerivedData/Leaker-fkhkydpehobufngumikoydtpyxsc/Build/Products/Debug/Leaker.app/Contents/MacOS/Leaker NOTE: this leaks command takes the path to the actual built binary. The app will launch. Click the Leak button any number of times. Quit the app. For example, clicking the Leak button 7 times, the leaks tool reports: STACK OF 7 INSTANCES OF 'ROOT LEAK: <malloc in -[AppDelegate leak:]>': 19 dyld 0x183e39058 start + 2224 18 ZJ.Leaker 0x10207d12c main + 60 main.m:14 17 com.apple.AppKit 0x187a33708 NSApplicationMain + 880 16 com.apple.AppKit 0x187a5c460 -[NSApplication run] + 512 15 com.apple.AppKit 0x187e8f1bc -[NSApplication _handleEvent:] + 60 14 com.apple.AppKit 0x18823bc08 -[NSApplication(NSEventRouting) sendEvent:] + 1556 13 com.apple.AppKit 0x187b9482c -[NSWindow(NSEventRouting) sendEvent:] + 284 12 com.apple.AppKit 0x187b94b6c -[NSWindow(NSEventRouting) _reallySendEvent:isDelayedEvent:] + 364 11 com.apple.AppKit 0x187c093b4 -[NSWindow(NSEventRouting) _handleMouseDownEvent:isDelayedEvent:] + 3472 10 com.apple.AppKit 0x187c0a5e8 -[NSControl mouseDown:] + 448 9 com.apple.AppKit 0x187c0b114 -[NSButtonCell trackMouse:inRect:ofView:untilMouseUp:] + 488 8 com.apple.AppKit 0x187c0b25c -[NSCell trackMouse:inRect:ofView:untilMouseUp:] + 144 7 com.apple.AppKit 0x187c0b850 NSControlTrackMouse + 1480 6 com.apple.AppKit 0x187c0e220 -[NSButtonCell _sendActionFrom:] + 88 5 com.apple.AppKit 0x187c0e2fc -[NSCell _sendActionFrom:] + 204 4 com.apple.AppKit 0x187c0e3d4 __26-[NSCell _sendActionFrom:]_block_invoke + 100 3 com.apple.AppKit 0x187c0e490 -[NSControl sendAction:to:] + 72 2 com.apple.AppKit 0x187c0e68c -[NSApplication(NSResponder) sendAction:to:from:] + 460 1 ZJ.Leaker 0x10207d2b8 -[AppDelegate leak:] + 88 AppDelegate.m:34 0 libsystem_malloc.dylib 0x183ff4ad0 _malloc_zone_malloc_instrumented_or_legacy + 276 ==== 7 (224 bytes) << TOTAL >> 1 (32 bytes) ROOT LEAK: <malloc in -[AppDelegate leak:] 0x600000ca5bc0> [32] 1 (32 bytes) ROOT LEAK: <malloc in -[AppDelegate leak:] 0x600000ca6e80> [32] 1 (32 bytes) ROOT LEAK: <malloc in -[AppDelegate leak:] 0x600000ca74a0> [32] 1 (32 bytes) ROOT LEAK: <malloc in -[AppDelegate leak:] 0x600000cb8520> [32] 1 (32 bytes) ROOT LEAK: <malloc in -[AppDelegate leak:] 0x600000cc0840> [32] 1 (32 bytes) ROOT LEAK: <malloc in -[AppDelegate leak:] 0x600000cc09a0> [32] 1 (32 bytes) ROOT LEAK: <malloc in -[AppDelegate leak:] 0x600000cc7a00> [32]

Hi everyone. We try to implement background assets to our project. And and encountered this problem. When try to send background event from terminal xcrun backgroundassets-debug --simulate --app-periodic-check -d [DEVICE_ID] -b [APP_BUNDLE_IDENTIFIER] In console.app in device log we saw this type of logs Text version :) Resetting extension runtime for: [APP_BUNDLE_IDENTIFIER] Application info for ([APP_BUNDLE_IDENTIFIER]) is being updated based on URL:(N/A) Failed to find represented extension point. (ID:[APP_BUNDLE_IDENTIFIER] Event (7) dropped for client ([APP_BUNDLE_IDENTIFIER]) failed because the app and extension do not share any application groups. Tried on Xcode 15, iOS 17.0.2, MacOS 14 App Info.plist (in yml style) ---- part <key>app-group</key> <string>group.com.*******.MobileFWDemo</string> <key>app-group-asset</key> <string>group.com.*******.BackgroundAsset.Container</string> <key>BAInitialDownloadRestrictions</key> <dict> <key>BADownloadAllowance</key> <integer>1610612736</integer> <key>BADownloadDomainAllowList</key> <array> <string>devstreaming-cdn.apple.com</string> <string>developer.apple.com</string> <string>http://example.com/</string> <string>https://www.learningcontainer.com/</string> <string>https://file-examples.com</string> </array> <key>BAEssentialDownloadAllowance</key> <integer>1073741824</integer> </dict> <key>BAManifestURL</key> <string>https://developer.apple.com/sample-code/background-assets/SessionsManifest.plist</string> <key>BAMaxInstallSize</key> <string>1610612736</string> ----- part In BAExtension info.plist <dict> <key>app-group</key> <string>group.com.*******.MobileFWDemo</string> <key>app-group-asset</key> <string>group.com.*******.BackgroundAsset.Container</string> <key>EXAppExtensionAttributes</key> <dict> <key>EXExtensionPointIdentifier</key> <string>com.apple.background-asset-downloader-extension</string> <key>EXPrincipalClass</key> <string>BackgroundDownloadHandler</string> </dict> </dict> App Entitlement <dict> <key>aps-environment</key> <string>development</string> <key>com.apple.developer.applesignin</key> <array> <string>Default</string> </array> <key>com.apple.developer.associated-domains</key> <array> <string>applinks:******.onelink.me</string> </array> <key>com.apple.developer.game-center</key> <true/> <key>com.apple.security.application-groups</key> <array> <string>group.com.******.BackgroundAsset.Container</string> <string>group.com.******.MobileFWDemo</string> </array> </dict> Extension Entitlement <dict> <key>com.apple.security.application-groups</key> <array> <string>group.com.*******.MobileFWDemo</string> <string>group.com.*******.BackgroundAsset.Container</string> </array> </dict> Method - not called - (NSSet<BADownload *> *)downloadsForRequest:(BAContentRequest)contentRequest manifestURL:(NSURL *)manifestURL extensionInfo:(BAAppExtensionInfo *)extensionInfo After add Background Asset Extension a new warning appeared in the logs: Execution of the command buffer was aborted due to an error during execution. Insufficient Permission (to submit GPU work from background) (00000006:kIOGPUCommandBufferCallbackErrorBackgroundExecutionNotPermitted) Maybe it wiil be connected to my problem. Could someone help ?)

This seems to show that a bunch of memory being allocated in... mach_vm_deallocate. That doesn't seem likely, so I have to assume I'm misreading the output? (This is on macOS.)