In any program I write where the handler of the event ValueChanged of a NumericUpDown has some extensive processing. For instance: Private Sub NumericUpDown1_ValueChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles NumericUpDown1.ValueChanged 'Some extensive p...more >>

I am developing the web application by using asp.net. The application run in production server (2 cpu , 2g physical ram, 2003 Server) -- enabled /3G mode. -- disable any recycle process setting in IIS6 Recently, the users can not log in to the system because outofmemoryexception flow ...more >>

Hi all, I'm hoping someone can help me out, as I'm a bit puzzled by some test results I'm seeing when using Application Center Test. For a particular test, if I run it with 50 simultaneous browser connections, the graph I get oscillates between up to around 400 requests per second, then ...more >>

Hi All I have following questions regarding C# Assembly and Threading. Let me know the precise answer or lead me to the proper materials. 1. Is memory leakeage possible in .Net Manager Code ? 2. Is memory leakage possible in .Net Unmanaged Code ? 3. How can I find the what % of memory i...more >>

Hi, I've been chasing down some memory leaks in a C# app we developed. I've tried memory profilers from Sci-tech and Red-Gate and both report that there are a number of instances of a form which are not being garbage collected. On closer inspection it seems that the chain of references to...more >>

I seem to be having some problems with .NET running a garbage collection. I have setup an application that reads in records from a database into a dataset. The user needs to modify a group of rows in this dataset, a save routine is run when they are done with all of their modifications, and the...more >>

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Hi... I've got a console app that fetches, reads, and processes text files and I've been trying to profile it to improve performance. Based on its configuration file, it supports multithreading with a ThreadPool. I've tried profiling with Compuware's Devpartner Studio, but I find the de...more >>

Has anyone been part of team that built a highly-scalable ASP.NET web-app that relied heavily on use of Session state ? By highly-scalable, I do not mean Amazon.com sized ... but, nonetheless, quite large. Just for example, a worldwide site to produce an insurance quote. I have heard fr...more >>

Hi all ! Does anyone know a good software that can monitor all performance counters at once in one computer, including the counters that I have created for my own app....more >>

Hi All, Does somebody know why File.Copy function is 10 times slower than standard windows drag and drop copy between folders, when I copy files over the network? Actually, I need to copy files from one computer to another over a 1GBit ethernet network as fast as I can. Although windows copy ...more >>

hi, i run into some strange behavior of GC when dealing with huge bitmaps. i'm writing simple control that loads lots of images and scales them down. as far as i was using single thread model everything worked fine - memory after disposing bitmaps was freed to OS immediately. then i wrote a...more >>

hi, i'm using ArrayList very often - it's so easy to use and flexible. unfortuntely i run in some trouble with it. generaly speaking this collection is in fact read only when it comes down to storing something complicated - like object or structure. in general many people say that when you...more >>

Hello, What would be the best for implementing architecture that runs several, independent, scheduled or run by the user on demand task in the same time? Now in my program every task creates it's own thread and run in it and after it completes the thread is destroyed automatically by the fr...more >>

Part of my current project involves laying out an event calendar. At the customer's request, this takes the form of a scrolling panel with three columns: a month and day, and two descriptive columns which I've implemented as a Label and two LinkLabels. Since other parts of the application c...more >>

Hi all, Let me first admit that, despite everything I've been reading on GC in .NET, I still don't get it. In fact, what I've learned is probably just enough to help confuse the entire issue for me ... Nevertheless, I've been monitoring performance on one of our LIVE servers the past co...more >>

I can't figure out how to do my kind of performance monitoring - the .NET online documentation leaves confused. I have a VB .NET multi-threaded gui application. Threads are used for internet retrievals and a some background calculations. I'm using FW 1.1. In a nutshell, what I want to kn...more >>

Hello All, (Heeeelp!) I've decided this is a better place to post than the original location, and have some updates. Original: http://www.microsoft.com/communities/newsgroups/en-us/default.aspx?dg=microsoft.public.dotnet.framework&mid=0b983465-5eee-46fe-b5ee-09486108233b&sloc=en-us...more >>

How to buy an effective dot net ASP.net web sever (IIS and MS Access) ? We will go with IIS 6 with the new web server if it is required. We currently use the latest dot net, asp.net and I think the original iis 5 on a pentium 1.2 GHZ and 1 MB RAM and Access 2002. Our Database queries are extre...more >>

Hi all, (Sorry for the cross-post -- just noticed this group.) We have a debate going on here in the office. There's one group that would prefer to have our LIVE environment with debugging turned on, because it's convenient when there's an error, and another (myself included) that would pr...more >>

I am having a performance problem with code that I wrote in VB.NET involving large formatted text files. The files involve records of arbitrary length that I need to do moderately complex search and replace on. A given record involves multiple lines, and in some instances, the whole record c...more >>

An application we have generates huge amounts of files (think a couple of million). Because of performance and storage issues we don't store the data in a database, but in the filesystem, over a number of directories. We are running under WIN64 native, both under .Net and Win32/Win64 tested. ...more >>

hi, all I have a problem about synchronized. I donot know how to do it in C#? I have a ArrayList Object. at one thread: I call a method to modify the ArrayList. and there is another thread call a method to get item from ArrayList Object. How to synchronize it? thanks the code: pu...more >>