And if so, how? (Second) Clarification: When a program starts up, what is in the memory space which will become global memory, prior to primitives being initialized. I'm trying to understand if it is zeroed out, or garbage for example. The situation is can a singleton reference be set - via an instance() call, prior to its initializa...
Does anyone know of a way to find out how much memory an instance of an object is taking? For example, if I have an instance of the following object: TestClass tc = new TestClass(); Is there a way to find out how much memory the instance "tc" is taking? The reason for asking, is that although C# has built in memory management, I ofte...
We've occasionally been getting problems whereby our long-running server processes (running on Windows Server 2003) have thrown an exception due to a memory allocation failure. Our suspicion is these allocations are failing due to memory fragmentation. Therefore, we've been looking at some alternative memory allocation mechanisms that ...
I want to implement in Java a class for handling graph data structures. I have a Node class and an Edge class. The Graph class maintains two list: a list of nodes and a list of edges. Each node must have an unique name. How do I guard against a situation like this: Graph g = new Graph(); Node n1 = new Node("#1"); Node n2 = new Node("#...
As everyone* knows, the Visual C++ runtime marks uninitialized or just freed memory blocks with special non-zero markers. Is there any way to disable this behavior entirely without manually setting all uninitialized memory to zeros? It's causing havoc with my valid not null checks, since 0xFEEEFEEE != 0. Hrm, perhaps I should explain a ...
What are some general tips to make sure I don't leak memory in C++ programs ? How do I figure out who should free memory that has been dynamically allocated ? ...
I have a function inside a loop inside a function. The inner function acquires and stores a large vector of data in memory (as a global variable... I'm using "R" which is like "S-Plus"). The loop loops through a long list of data to be acquired. The outer function starts the process and passes in the list of datasets to be acquired. I p...
When multiple scanf() statements are encountered in the code, then, except the first scanf() statement, all others are skipped, that is, there is no prompt for input for those scanf() statements when the code is run. I have a tried a few suggestions. For eg, use of flushall() was suggested on some site, but that gives a compilation erro...
Seriously, I've trawled MSDN and only got half answers - what do the columns on the Task Manager mean? Why can't I calculate the VM Usage by enumerating threads, modules, heaps &c.? How can I be sure I am accurately reporting to clients of my memory manager how much address space is left? Are their myriad collisions in the memory glos...
In an embedded application, we have a table describing the various address ranges that are valid on out target board. This table is used to setup the MMU. The RAM address range is marked as cacheable, but other regions are marked at not cacheable. Why is that? ...
I'm writing the memory manager for an application, as part of a team of twenty-odd coders. We're running out of memory quota and we need to be able to see what's going on, since we only appear to be using about 700Mb. I need to be able to report where it's all going - fragmentation etc. Any ideas? ...
We are getting an error in a VB6 application that sends data back and forth over TCP sockets. We get a runtime error "out of string space". Has anyone seen this or have any thoughts on why this would happen? It seems like we are hitting some VB6 threshhold so any other thoughts would be helpful as well. thks, ak ...
In Vista Task Manager, I understand the available page file is listed like this: Page File inUse M / available M In XP it's listed as the Commit Charge Limit. I had thought that: Available Virtual Memory = Physical Memory Total + Sum of Page Files But on my machine I've got Physical Memory = 2038M, Page Files = 4096M, Page File Av...
Hi, I use the recent Ganymede release of Eclipse, specifically the distro for Java EE and web developers. I have installed a few additional plugins (e.g. Subclipse, Spring, FindBugs) and removed all the Mylyn plugins. I don't do anything particularly heavy-duty within Eclipse such as starting an app server or connecting to databases, ...
Compared to Simple memory access Disk access Memory access on another computer(on the same network) Disk access on another computer(on the same network) in C++ on windows. ...
I am trying to fix memory leaks in IE 7. Using Drip for investigations but it is not helping much when most dynamically generated DOM elements do not have unique ids. Tips? ...
What is the best available tool to monitor the memory usage of my C#/.Net windows service over a long period of time. As far as I know, tools like perfmon can monitor the memory usage over a short period of time, but not graphically over a long period of time. I need trend data over days, not seconds. To be clear, I want to monitor th...
Is the a VS2005 C++ compiler flag like the Xmx???M java flag so I can limit the heap size of my application running on Windows. I need to limit the heap size so I can fill the memory to find out the current free memory. (The code also runs on an embedded system where this is the best method to get the memory usage) ...
The default 64 MB max heap memory can be small for a large Java application. Are there any applet parameter to increment this for a signed applet? For a Java program this is a simple command line parameter but how this work for an applet in the browser. ...
We have a java program that requires a large amount of heap space - we start it with (among other command line arguments) the argument -Xmx1500m, which specifies a maximum heap space of 1500 MB. When starting this program on a Windows XP box that has been freshly rebooted, it will start and run without issues. But if the program has run ...