instruments

Where did Instruments go in Xcode 4.3?

假如想象 提交于 2019-11-30 17:06:04
I have just updated from 4.2 to Xcode 4.3 and "Instruments" is no longer there. I tried to run it from Launchpad but was informed that this is not possible because Instruments is in the trash bin. Xcode 4.3 uninstalled 4.2 but it seems it did not bother installing a new version of Instruments. sch You can launch Instruments from within Xcode. It is no longer in the /Developer folder but in /Applications/Xcode.app/Contents/Developer . From the menu bar, choose Xcode > Open Developer Tool > Instruments . If your goal to profile your code with Instruments after all, choose menu "profile" from

Understanding iOS Instruments

大憨熊 提交于 2019-11-30 16:43:57
I am creating an iPhone app. Running into memory issues I started using Instruments to track down any memory problems. Am running into some strange behavior that leads me to believe that I am either mis-using Instruments or mis-reading its data. These are the LiveBytes values recorded when moving in and out of a location: **Expensive Location-** World (12 MB) Loc (27 MB) World (13 MB ) Loc (28 MB) World (14 MB) -Crash **Cheap Location-** World (12 MB) Loc (23 MB) World (13 MB ) Loc (24 MB) World (14 MB) -Crash Notice how I still crash even though the cheap location's memory has come no where

GeneralBlock-56 memory leak when calling loadRequest in UIWebView

徘徊边缘 提交于 2019-11-30 15:21:03
I'm working on an IPad app and have been profiling it using Instruments in XCode 4. I'm profiling on the actual device itself. iOS 4.3 is installed. Instruments tells me I have some memory leaks, the leaked objects being mainly GeneralBlock-56 ones and some GeneralBlock-1024 / GeneralBlock-8192 ones. The interesting thing is that these leaks are reported only when I load up a URL in a UIWebView embedded in my app. If I comment out the loadRequest call, these leaks go away. This behavior is consistently reproducible. The loadRequest() calls looks like this: [webPage loadRequest:[NSURLRequest

How to activate Cycles reporting in Instruments under ARC?

孤人 提交于 2019-11-30 13:58:26
问题 Instruments can visualize retain cycles under ARC in a graphically interesting way. I also remember that a few days ago I spotted the "Cycles" view in Instruments by accident. Now where I started using ARC, suddenly I'm not able to find that anymore. The Allocations and VM Tracker instruments don't offer it, and the Leaks instrument either. What must I do in order to see retain cycles? Found a screenshot as evidence: 回答1: Using Xcode 4.2.1, I found the it in "Leaks", under "Cycles & Roots".

Why won't instruments execute my Monotouch application?

爷,独闯天下 提交于 2019-11-30 11:55:35
I'm trying to use Instruments to look at resource usage in my Monotouch app. However, I can't get the app to launch through Instruments. When I hit the record button in Instruments, the app launches on my iPhone, buzzes (signifying it's a debug build), then crashes - and Instruments reports: Target failed to run: Remote exception encountered : 'Failed to get task for pid 384' The app runs fine when I launch it directly on the phone. I've tried it with debug builds and ad hoc builds (using the parameters defined on the Monotouch support page ). Always the same. I'm using Monotouch 3.2.5, iOS 4

XCode 4 Running the Leaks Instrument

若如初见. 提交于 2019-11-30 11:28:22
问题 This might be a silly question. How do I run an application with an Instrument in XCode 4 such as Leaks? I do not see the option like I have in the past, and I have looked around, and either I missed it somewhere, or it is right in front of my face. Thanks 回答1: Click and hold on the run button, and choose the profile option. You can also edit the profile scheme to make it use debug builds when profiling. To do this, go to edit scheme by click on the dropdown next to the stop button: Then

How to activate Cycles reporting in Instruments under ARC?

喜欢而已 提交于 2019-11-30 09:13:12
Instruments can visualize retain cycles under ARC in a graphically interesting way. I also remember that a few days ago I spotted the "Cycles" view in Instruments by accident. Now where I started using ARC, suddenly I'm not able to find that anymore. The Allocations and VM Tracker instruments don't offer it, and the Leaks instrument either. What must I do in order to see retain cycles? Found a screenshot as evidence: Using Xcode 4.2.1, I found the it in "Leaks", under "Cycles & Roots". However, I've found it less than useful when using ARC. It does detect CF leaks and apparently I'm leaking a

Programmatically get iOS device screenshot from the connected Mac computer

£可爱£侵袭症+ 提交于 2019-11-30 08:18:46
问题 I know it's possible to get a screenshot programmatically from code in the iOS application, and to manually get screenshots from Xcode and Instruments (Instruments also automatically takes screenshots during UIAutomation test failures). What I would like to find is a programatic way (with code running on the Mac, not the device) to grab screenshots from the device onto the Mac which it is plugged into. Is there an API (or command-line parameters) into Xcode or Instruments to get access to

Instrument-Multiple device execution

℡╲_俬逩灬. 提交于 2019-11-30 07:51:00
问题 I am able to run instrument using command line for a single device / simulator, but I need to run it on two devices. Manually I can achieve this by opening two new window of Instruments and make two copy of the js and import it. But I need to achieve this using Command Line. Can anybody help me in achieving this or does anybody have the guidelines for the same? 回答1: I struggled with this as well here is a part of my solution. What i did is: Create trace files in instruments with you script

Xcode Instruments' Allocation tool misses quite a bit

半世苍凉 提交于 2019-11-30 05:46:10
问题 My app has been crashing a lot, for reasons that I'm struggling to understand. It's not so much that it's crashing -- it's getting killed by an outside "Unknown" process: Processes Name <UUID> rpages recent_max [reason] (state) test-app <....> 167111 167111 [per-process-limit] (frontmost) (resume) I could understand that if I were allocating a huge block of memory, or a zillion smaller blocks, but I'm not doing anything that outrageous. Profiling with Instruments tells me that the app uses