Hi I'm overloading the onInit event in my custom page class and checking the requested Id in the Url is present in my XML file and also checking a couple of attributes for that Id. I'm using the XMLDocument.Load method and the SelectSingleNode method to check for my Id. I'm wondering whether it wo...more >>

Just implemented a production system using asp.net, iis6, sql2000 running on windows2003. Due to the iis6 settings of recyclying worker process every "n" minutes I didn't pick up during testing that there is a memory leak with the app. Narrowing it down even the following code causes a memory leak...more >>

Hi, I've encountered an interesting case: My program implements a classic scenario in which a worker thread iterates over a queue, dequeues elements, perofrms operations on the elements and so forth. When the queue is empty, the thread calls Suspend upon him self, and when the queue is refille...more >>

Why is it that given int C = 13000; int[] n = new int[C]; foreach (int i in n) foreach (int j in n) { tmp+=i; tmp+=j; } is significantly slower than for (int i=0; i<n.Length;i++) for (int j=0; j<n.Length; j++) { tmp+=n[i]; tmp+=n[j]; } ? -- co...more >>

Hello, I have checked all the groups and messages and cannot find this situation: I have created a synchrounous (and Asynchronous as a test) servers that are listening on port 11000 and ready to take a new connection. (this is test code for a DNS handler) I created the Listener socket, th...more >>

Hi All, I can't believe .NET memory management is such a mess. I prefer to use old way to release memory. Now, I fix all memory leak in my Windows GUI Applicaion except some one related to Crystal report. It's so weird. On same report, sometimes memory release is OK, sometimes doesn't ...more >>

Hi @all when I try to create a cutsom performance counter from my ASP.NET application I get an exception calling me, that the requested registry acces is not allowed. ASP.NET process is running as machine account Also trying to run some samples from KB, with my local account (Power User), faile ...more >>

Hi! We have a strange problem that we've been trying to solve for some days. We have an application where we have our own custom objects filled with data. We're doing a lot of looping / removing and creating of objects in a specific function. When I run this on my laptop it takes about 1,7 ...more >>

PerformanceCounter processorUtiliz processorUtiliz = new PerformanceCounter("Processor","% Processor Time","_Toal") string myValue = processorUtiliz.NextValue().ToString() In this the processorUtiliz.NextValue() is always giving me a value 0.0. Could some body please help me why it is not giving...more >>

I'm trying to generate a Binary Space Partion tree. All the code-examples that I have been looking at, all use C pointer, malloc() etc, which is pretty hard to convert to C#. I have created my own Create_BSP function, but its slooooow and very memory consuming, when the tree-depth gets above aro...more >>

Hi, We are experiencing a huge page faults and virtual memory in task manager after working a few hours with an application developed by VB.NET uses web services . This causes an extremely slow down in the application respond. Any way I could control this problem? I called the following ...more >>

Hi While flipping through the ms book "Improving Web Application Security: Threats & CounterMeasures" I came across a recommendation for preventing/reducing the threat of canonicalization attacks. The book (offhandedly)suggested that one way to address this threat is to change your web app's defau...more >>

Hi, I have a windows gui application. It has performance problem. It runs well at morning. But in the afternoon, System becomes slower then extremely slow until you restart the computer. I use .NET memory profiler to trace it. I find Generation #2 keeps growing, never decreases. I call "dis...more >>

When I run stress tests on my .NET application, after several hours I often get a Windows dialog box that appears in the System event log that states the following. "Application popup: Windows - Virtual Memory Minimum Too Low: Your system is low on virtual memory. Windows is increasing the si...more >>

Hi Apart from tuning tools/wizards offered within MS SQLSERVER, are there any good third party tools for SQL tuning in SQLSERVER Thank chen...more >>

Hi, We are running our application on a dual-processor machine. Now, it seems, by definition, a multi-processor machine is a Web Garden. I guess this would imply that the WebGarden attribute of processModel in Machine.config, needs to be set to "true"? Here's my comements/questions pertaining ...more >>

Can anyone tell me if there is any performance impact on a class that is running in a pure .Net environment that has implemented the ComVisible attribute versus the same class that has not implemented that attribute? Kind regards, Bryan ...more >>

error message; need hotfix. How do I obtain it?...more >>

well i'm having almost the same problem. I'm displaying page wise records in an aspx page. (DNA archecture using enterprise service and remoting) Suppose the user has requested to see data from the customer table. The customer table may contain 100 or even thousands of records, and I do not wa...more >>

I made some benchmarks and MC++ is much faster then C#. They should be compiled to the same TYPE of code and therefore their performance should be +- equal. Can sombody explain me this thing ? -- Gawel ------------------------------- Pierwszy ³yk z pucharu nauk przyrodniczych czyni ateist±...more >>

Hi I'm currently porting a reporting engine from ASP site to ASP.NET 1.1. Part of this functionality produces an html version of the report and saves it to the file system The original ASP logic broke the html output up into managable strings (one per report section) and appended these to the f...more >>

hi I have a query to a LDAP directory which is supposed to get a list of records to be displayed in an ASP.NET page There is not many of them, almost 3 dozen. But the query is rather long, too long for a web page indeed Is there a way to optimize such queries Thank Here what I'm doing ldsSe...more >>

Suppose in a .net application a user sees his homepage, which includes many elements the requires sql queries. Each user sees a different homepage obviously. Executing these queries every time a user goes to his homepage is obviously going to drain a lot of systems resources, especially since ...more >>

I have a Console Application that run as Server Application, the application run perfect but after 5 hours aprox. the memory (Phisical and Virtual) increase too much making the OS inestable and producing the tipical "Out Of Memory" Windows Message box. So, I create I timer that every 10 minute...more >>

Folks - I am observing some weird behavior in our application during shutdown, let me see if I can explain this clearly. Lets say I open 2 instances - A and B - of the application on my machine. Regardless of what order I shutdown the instances, the process associated with A always takes lo...more >>

have an Enterprise Template using a Policy file that I'm experiencing some strange behavior with. I've racked my brain through the news groups and all the examples off of MSDN, but can't seem to locate the what's causing my problem. We are building an enterprise application, with various typ...more >>

I have a P4 1.7 GHz with 768 MB DRAM running XP Pro. I've been using Visual Studio .Net 2003 with Framework 1.1 for about a year. About 2 months ago my Visual Studio began loading extremely slowly and running sluggishly in general in many areas including editing source, starting and stopping d...more >>

Hi, I've got a memory leak, or something that looks like one. In order to recreate same problem open a C# Windows application project. Add a UserControl (MyUserControl) to your project. Add a button and timer to the form. Add following code to your form. Make sure to bind button1 with the Cl...more >>

Hi, We have an asp.net web application that starts to perform poorly with about 12 concurrent users. I went through the process of collecting the relevant performance counters and am trying to sort out what i am seeing. The web server is a 2 CPU machine with 1 GB RAM. Our application is the on...more >>

I have a C# program which needs to determine how it was initiated. If it was initiated by the command line or from being double-clicked in Windows Explorer than I want to display errors in message boxes. However, when I check parentProc.ProcessName, I get the "No Disk" error (this is on syste...more >>

Hi We are using general DAL class for all common DB routines. That class has many shared member functions which can be called without instantiating the class. My questions, in a multiuser environment, as there is no instantiation involved for this class, how the function calls are processed? Will ...more >>

I was tasked to build a .NET/C# server-side application that'd answer calls from a modem bank & allow Zmodem uploads. I was given Sax's SaxComm8 ActiveX component (already paid for & not much else out there handles Zmodem; also, new Sax.NET framework STILL doesn't offer Zmodem support yet). ...more >>

Does anyone have any detailed insight on how pinned data for unsafe code really affects memory allocation and garbage collection over the life of the application? I know that pinned data cannot be moved in a garbage collection. So, if a garbage collection occurs while some code is inside a un...more >>

I am constantly struggling with the problem of what 'type' of application to develop. WinForm or WebForm? The customer says I need a central database for all sites but the sites are geographically disperse limited to DSL Internet access (VPN solution not an option due to huge support burden). ...more >>

I was looking at some performance counters related to my application. The private bytes comes out to be around 110 MB and the #Bytes in Heap, around, 24 MB. This would indicate that about 86 MB is being taken up by unmanaged memory. Our application does interop to a few COM objects. How can i pee...more >>

Is there a limit for number assemblies or number of classes that can be hosted in GAC? Could some one please comment on this? Thanks. Raghu/.. ...more >>