Is there any general guidance concerning the cost of using custom counters? My experiments show the overhead to be extremely low, but they may be distorted by JIT optimization or caching or... Are there any existing published guidelines on this subject? TIA. ...more >>

Greetings I'm experiencing this problem I have a class in an assembly with a single method PerformCalcs() If I load the assembly in the main AppDomain and call PerformCalcs() the execution time is aboput 10ms. If I load a new AppDomain, I load the assembly using a remote loader and then I ...more >>

HI: I load about 1,000,000 records into dataset one time , OutOfMemoryException was thrown. Some guys told me that we sholudn't use dataset at this scenario. But I want to load all data from database one time because I need to loop it to find some records compare with another dataset. So ...more >>

My company is required to perform an performance test of the web component of our application. We would like to simulate 1500 - 6000 concurrent users. Ideally, a percentage (30-40%) of these users will be active with a simple task, while the remaining sessions are active.With this load in plac...more >>

Hi, i have a requirement for building a file for each customer, a customer of mine has. These files will be between 1 and 5 meg in size each. We could have anywhere between a few and tens of thousands of files. We wanted to keep an index loaded in memory which consists of the company na...more >>

Hello, I am currently doing performance evaluations with Visual Studio 2005 beta2 and .NET 2.0 beta 2. When I paint some thousands of circles to a Windows Form using the graphics object it takes about 4 times longer compared to unmanaged drawing into the device context of the form (using P...more >>

Hi, I'm not sure what to make of this: I used ACT to perform pre-and post optimization tests. (I don't have admin access to the server so-- can't get perf counter data) The following optimizations in an asp.net app only yielded about 26% increase in performance (a 7 minute test simulatin...more >>

Hello there, I am currently working in .net. Now i need to know that in order to build a server/client architecture which one is more suitable Vc++ or ..net. There is a server in our company that has been build over vc++, now we are looking for any chances of shifting it to .net. BTW speed of ...more >>

I have the SystemMonitor ActiveX control on a form and I try to register a custom performance counter. I expect that after registering the counter with the OS, the user would be able to add it through this System Monitor ActiveX control on the form. Yet, the Add dialog of this ActiveX does NOT...more >>

Greetings I'm experiencing this problem I have a class in an assembly with a single method PerformCalcs() If I load the assembly in the main AppDomain and call PerformCalcs() the execution time is aboput 10ms. If I load a new AppDomain, I load the assembly using a remote loader and then I ...more >>

I have a WinForms application that is running into performance problems in a small number of end user systems. Problems are related to startup speed, and several grid related operations using a grid component. The user system is fast (2.0 GHz) and I have no performance problems on a similar...more >>

Hi! I have a main app Form1 which has some references to dll:s with other controls and forms which in turn each has more references to other dll:s ... My question is, when is these dll:s loaded from disk into memory? Everything at startup or only when needed? What Im wondering is if it woul...more >>

Is this code ok? [STAThread] static void Main() { System.Diagnostics.Process[] p = System.Diagnostics.Process.GetProcessesByName(Process.GetCurrentProcess().ProcessName); if (p.Length == 1) Application.Run(new Form1()); } When checking with the PermormanceMonitor and "I...more >>

Hi, We have a web application based on DotNetNuke 2.x. 1. We host several portals (sites) 2. Some relatively big clients have their own application pool and they have a lot of hits (in average between 7K - 21K per day). (1600 per hour) 3. We also grouped low level sites into 2 application po...more >>

Folks, There was an issue in 1.0 with arrays greater than 16MB not being collected. Was this completely fixed in 1.1 or just improved. Anyone have the details on this? -arnie ...more >>

I'm working on an file transfer gateway using WSE with DIME for file attachments. Our goal is to replace our direct file repository access (via windows network folder sharre) with the Web Service gateway for security purposes. As it stands now, all workstations have direct read-write access...more >>

Hi everyone, I've asked for your help before and you've been very welcoming and helpful, however now I have a few further issues. I'm developing a highly concurrent middleware server app (C#) that takes socket connections from a frontend webpage and performs processing and SQL queries on a ba...more >>

I have an application that performs custom deserialisation of object state from byte arrays. This happens very regularly, so needs to be fast. In addition, most of the strings repeat, meaning I'm deserialising the same sequence of bytes repeatedly, giving the same output string. Let's ignor...more >>

I have windows form application on clients computer communicating with Database which is in a remote location in same network. We see considerable performance degradation due to this setup. If the client access the databaser locally the performace is lot better. Does any one have any sugge...more >>