Hi , i m new to iPhone programming. i am very confused... plz help .. i have a list of questions. 1. - (void){ ClassOne *ob = [[ClassOne alloc] init]; // do i should use autorelease here ? self.O = ob; [ob release]; // is this correct ?? } or -(void)dealloc{ [O release]; // is this correct ?? } which one will release ob ?...
Hi. I have a simple example of what I don't understand about memory management on the iPhone: - (IBAction)AssignAndReleaseOne :(id)sender { for (int i=0;i<10;i++) { someString = [[NSString alloc] initWithString:@"String Assigned"]; } [someString release]; } - (IBAction)AssignAndReleaseTen :(id)sender { for (int i=0...
Hi, I'd like the following to appear in every source file in my Visual C++ 2005 solution: #define DEBUG_NEW new(_NORMAL_BLOCK, __FILE__, __LINE__) #define new DEBUG_NEW Is there a way of doing this without manually copying it in? Compiler option? Cheers ...
I have an application running on Websphere Application Server 6.0 and it crashes nearly every day because of Out-Of-Memory. From verbose GC is certain there are the memory leaks(many of them) Unfortunately the application is provided by external vendor and getting things fixed is slow & painful process. As part of the process I need to...
I am using C# and an OBDC DSN to connect to a Paradox database. I seem to be leaking memory if I open and close each connection. My code is basically: csb.Dsn = "DNSName"; OdbcConnection con = new OdbcConnection(csb.ConnectionString); con.Open(); OdbcCommand comm= new OdbcCommand("SELECT...
Above given images is of my application leaks. Here I want to understand that, in Extended Detail - you can see different colors like light green, light pink, light brown, light purple. What does each color indicates? Now the other confusion is "How to locate the code which is creating a memory leak?" Upto what limit of memory leak...
I am getting following type of memory leak in my application - instruments checking. I have properly allocated & deallocated every object. However i am getting this type of memory leak. std::_Deque_base<__CFURLCacheNode*, std::allocator<__CFURLCacheNode*> >::_M_allocate_node() What is the reason behind generating these kind of leak? W...
How does one effectively dispose a StringBuilder object? If an user generates multiple reports in a single sitting, my app ends up using a huge amount of memory. I've read in a few sites online that the follow may help: StringBuilder sb = new StringBuilder(1000000); // loop goes here adding lots of stuff to sb exampleObject.Text = sb...
Hi, We are using many custom controls by inheriting form the WPFcontrols as the base and customizing it for our need. However, the memory used by these controls are not released, even after pages using the controls are closed, until the whole application is closed. As these application has to work for a whole day performance decrease...
All good C++ programmers know how to avoid leaking memory (or resources like sockets): Always use smart pointers, i. e.: std::auto_ptr, boost::shared_ptr. Always be aware of ownership of object: who owns, who refers, who is responsible, etc. But, memory leaks still happen. Point most common issues when you discovered a memory leak i...
Hello everyone, in my app I'm trying to process an YUV422 image from a webcam. but I'm getting a huge memory leak. below you can see a sample of simplified code of my app. if I disable the "(m1..." line in the function, there is no leak. (but the images are not being processed). I've tried locks, pools, etc but nothing changed. I'm rela...
If an application produces a lot of memory leaks, are they "just" an in-app problem or are they also in RAM after the termination of the application? So does the iPhone OS release the memory allocated for the sandboxed application? Thank you ...
I am cleaning up my code in a phonebook iPhone application and the Leaks tool in Instruments is reporting that I am leaking NSCFString objects. Here is the pattern that I am following: I have a Person class in my application that has nothing more than local NSString members and associated properties for first name, last name, etc. My ...
I'm on Slicehost 256 plan running one single Rails app on Ubuntu Hardy 64 bit server. This is the shot taken using top command sorted by memory% (Shift+M) And this is the screenshot taken while running htop command sorted by memory% used. The memory consumed by mysql using top shows 3.8% but the htop shows around 17 processes each e...
I have a small multithreaded script running in django and over time its starts using more and more memory. Leaving it for a full day eats about 6GB of RAM and I start to swap. Following http://www.lshift.net/blog/2008/11/14/tracing-python-memory-leaks I see this as the most common types (with only 800M of memory used): (Pdb) objgraph....
Hi, I have a C program that stores some object in java store using JNI. (Before someone ask, using java store is a requirment here and I have to write a client in C which would be able to add and retrieve objects from this store). I made the program and tried to add 100000 object of size 1KB. But after adding only 50000 objects I am get...
I love the profiling tools that Red Gate makes for when I write in C#. Right now I am writing an application for iPhone in Objective-C and I am having a hard time adjusting to Instruments. It's just not as easy to use. Does anybody have a better code profiler for memory and performance? If not, any good tutorials for instruments? Th...
16 Bytes is pretty small, right? None of the UIImages I create in my app are that small, yet the Leaks Instrument is reporting a leaked UIimage of size 16 Bytes... Any clues on what this could be? Incidentally, there was also a leaked CALayer object of 48 bytes... ...
i have set up a nsurl which grabs the data from http. when i run instrument, it says i have a leak NSFNetwork object. and how do i release theConnection in (void)ButtonClicked? or it will be release later on? - (void)ButtonClicked { NSURLRequest *theRequest = [NSURLRequest requestWithURL:[NSURL URLWithString:KmlUrl] ...
I am writing a web application that has a static outer "shell" and a dynamic content section. The dynamic content section has many updates as users navigate the system. When a new content block is loaded, it may also optionally load another JavaScript file. In the name of good housekeeping, I remove script blocks from the DOM that app...