Hi, I have built a server application in VS.NET 2003. This application is a mix of managed and unmanaged code (don't know if this has anything to do with it). It uses I/O Completion Ports with thread-pooling to service client-requests. Now, when the server is running and servicing requests,...more >>

Hello All, I am working on a windows application which will talk to the database through the Web services. So i need to enhaance the performance, for which i m using connection pooling. I want to use pooling at the Web services end and not the default SQL server pooling. ...more >>

Hi, We have implemented a windows service in C# supposed to deployed on the Windows 2000 server on a multiproc machine. However I found that, by default, mscorwks.dll is loaded. What changes do I need to make so that mscorsvr.dll os loaded as the runtime? Thanks, Pranav. ...more >>

Our deployement consists of web server (dual processor) and application server (dual processor). The ASP.NET web application makes remoting (Tcp/Binary) calls into a window service (our own) hosted on application server. During our load testing, we found that there is huge gap in time during cro...more >>

I'm currently re-writing the GUI of my application to improve speed, reduce memory consumption and startup time, and make it prettier. I currently embed msie to show a basic informational page. But this takes 9 meg of RAM and about 3 seconds to instantiate. This is unacceptable. I need to du...more >>

Hi there, several of our ASP.NET apps started to slow down recently quite a bit and we noticed the aspnet_wp.exe process taking up 100% CPU time. I have heard a little on the hotfix available for the memory issue but after applying it, it did not seem to take care of the CPU time problem although i...more >>

Hi, I'm having some problems getting the required speed for a small app i'm currently writting. I rewrote the getPixel() fucntion that i thought was my orginal bottle neck, but i'm still taking 5-6 minutes to calcualte the score of around 6000 points. Does anyone have any suggestions as to ot...more >>

hi I am new to dot net. The problem I am having now is that I would like a thread to feed data from database to a arraylist at background and at the same time I want to display the objects in the arraylist in a form. The brief code is: private ArrayList CustomerList; public Form_Load(...more >>

We're looking at improving the performance of our application by ngen'ing our assemblies. As I understand ngen must be run post install as it is specific to each pc's configuration. I've created a batch file to do most of these steps, all I need to do is find some way of getting the location o...more >>

Hello All, I have a Windows application that uses Crystal Reports 9 (bundled Version) developed using VS.NET 2003 on a windows server 2003 m/c. The application has to be deployed on the client machine that has Windows XP installed. Before deploying we make sure that .NET framework 1.1 is insta...more >>

Hi We've been experiencing some slow shut downs on our Windows .NET Desktop application. On further investigation, it turned out that the virus scanner was scanning a *.ini file for our application that is created within the Local Settings\Application Data\ApplicationHistory folder. Over time t...more >>

Hey Folfs, I am new to dotnet and ASP, and have been challenged with supporting an ASP.NET application with a SQL back end. Any tips on how I can monitor and or tune performance in general for dotnet or ASP? CHeers' PW ...more >>

I was wondering if someone came across a handle leak when using PerformanceCounter class. My code comes down to doing this: PerformanceCounter Counter = new PerformanceCounter("CategoryName", "CounterName", "InstanceName"); CounterSample Sample = Counter.NextSample(); // Dump the sampl...more >>

Here is my code IDataObject iData = Clipboard.GetDataObject() GridData gd = new GridData() Type myType = gd.GetType() if (iData.GetDataPresent(myType) GridData data = iData.GetData(myType) as GridData data.display(dlen-2) ...more >>

I am getting an error "Failed to parse toolbar definition file" each time I load Internet Explorer in XPP. Can anyone suggest how I can restore that file. Thanks in advance....more >>

[This is a re-post of an item on microsoft.public.dotnet.framework.aspnet.webservices in an attemp to generate discussion] An ASP.NET Performance and scalability related question. Given there are a set of 25 ASMX pages that stand independently (and that don't call each other), all running o...more >>

Has anyone been able to get ahold of this Hotfix? If so, how? http://support.microsoft.com/default.aspx?scid=kb;en-us;833610 I tried to go through the Request Online Help system, but there is no option for .NET or .NET frameworks. Also, has anyone used the NuMega Devpartner product succ...more >>

Hi All, I'm getting big diferences in local versus network performances. When I use Directory.GetFiles of DirectoryInfo.GetFiles on a local path with some 11.000+ files, it executes under 4 second. When I do the same over a network (UNC and mapped) it takes a whopping 126 second. I've also te...more >>

Does anyone have any insight into how .NET physically stores static variables? In a performance critical section of my application, I'm considering caching some often calculated values where there is a high probability of input values remaining the same between successive calls. The cost of...more >>

Hi, Is there a way to collect multiple performance counter values simultaneously for each remote server? I am writting a service that collects performance counter values from approximately 100 servers periodically. I am storing the required counters for each server in the database and retr...more >>

I've heard that the memory usage displayed in the task manager for a .net application includes the cost of the CLR, and that even though the CLR is shared by .net applications, each application will have the cost of the CLR added to its memory usage in task manager. Can anyone confirm/deny thi...more >>

Not sure if this is the right place to be asking this, but i have a very simple windows service app, which essentially emails the host machines IP to a set email address at a set period. This application takes up a whopping 16 megs or memory when i run it, and i wondered if this is natural. Re...more >>

Hello I have 512x512 grid of booleans At a specific point in my application, I need to find out if a particular point in my grid have value true of false. Now I need a way to store the boolean value for each coordinates in my grid. I found some methods: 1. I could have a 512x512 BitArray...more >>

My objective is quite simple. I want to display a JPG image and then on it overlay a polygon. This polygon can be moved by a user. The even is trapped on the mouse down event of the control. I can make the polygon move but the screen flickers because I call invalidate() on the mouse down event. I...more >>

Hi there, I have a class which is derived from ServicedComponent. The instances do not support JITA, nor do they require any transactions. Each pooled object holds a few references to expensive resources. My usage is as follows: - Get an instance from the pool - Execute method1 - Exec...more >>

After cursing VB.NET for not having any easy way of using inline variables in strings, I finally discovered the wonders of String.Format(). My only concern is: how much can I abuse it? For example I iterate through a loop about 20 times and each time I execute a SQL statement that uses 22...more >>

Can anyone point me to a reference (besides Petzold) that talks about how the gc self tune works? He suggests that a high rate of surviving allocations indicates that the thresholds are too low, and that the gc will raise the thresholds, to give allocations more time to go stale. This makes...more >>

Hi, Can anyone give me a elegant solution to the folllowing: I'm using IO.DirectoryInfo("c:\") and the Folder.GetFiles and Folder.GetDirectories methods to get arrays of io.directoryinfo() and io.fileinfo(). But when traversing the tree, I want to attach those array to each other, so I wil...more >>

Can you tell me wich reset methods for array is faster? redim, clear or a for loop? -- Cheers, Crirus ------------------------------ If work were a good thing, the boss would take it all from you ------------------------------ ...more >>

I have a problem with aspnet_wp process in my web server IIS 5.0, because more process aspnet_wp remain in memory and use no cpu time, but use a large quantity of memory. The .net framework that I use is ver. 1.1 and i have installed the service pack 2. I have read that there are some proble...more >>

I have a .NET 1.1 web app written with VB.NET, importing 5 VB.NET custom assemblies. Can the profiler be used to examine this application? I have tried running profiler to Profile ASP.NET, and it stops and restarts IIS and a msgbox comes up telling me it is waiting on ASP.NET to invoke/start th...more >>

I'm currently looking into processing (relatively small) portions of some xml files; the problem I have is that some of the files are quite large and memory usage jumps about 20MB. You can achieve similar results something like the mscorlib.xml file for size. Is there an optimal, forward onl...more >>

hi All, got a quick one ! when does the Worker Process Restarts counter is reset , is it when the machine resets or is it when the IIS resets ? thanks -ashish ...more >>

Hi Everybody Can anybody show me a successful desktop (not web service or internet) .Net application in the market (from famous and big companies) Regards, Tom ...more >>

I have a client and server which communicate via ascynchronous sockets. If I am sending a large file from the client to the server and I just kill the client app during mid transfer (either by closing the form or just killing the process) the server then kicks up an untrappable error in "...more >>

we are running about 30 very low volume sites on our production server and we are using dual 2.4 ghz /4GB RAM machine and .net 1.1, IIS6.0 the problem is that the MS documentation says that we can use /3GB switch and make the worker process recycle at 1.8 or 2g instead of 750mb we tried i...more >>

I need to store a very small amount of information which is to be passed as a parameter to various methods. Assuming that I don't need inheritence and that the class would simply contain properties (and no methods), would I better off using a stucture or a class from a performance point of view? ...more >>

Hi, I would like to know what type of counters can be retrieved using PerformanceCounter class's NextValue() method and what type of counters require CounterSample class's Calculate() method to accurately measure the performance counter value. Kris...more >>

I was wondering on the breadth of optimization with .NET JIT compiler. Let's presume I have an assembly of static classes - mostly helper functions. Some of these functions may be very small (small enough that the optimizing compiler would inline them). If I have another assembly that refere...more >>

Hi, I would like to know whether or not CounterSample.Calculate method calculates the performance values based on formulas outlined in MSDN for each counter type. For example as per MSDN, if the counter type is Timer100NsInverse, the formula should be (1- ((N1 - N 0)/ (D 1 - D 0))) x 100...more >>

Hi, I need to know how to free up virtual memory allocated for the application because it does not seem to be freed up enough. At some point, system runs in low virtual memory and cripples the system. I created a test C# winform application with a few buttons. (The test program was just...more >>