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all groups > dotnet performance > august 2003

system does not reset unread email
Posted by martind at 8/31/2003 8:18:56 PM
I hope this is the right area for this post. After the computer screen saver goes on and you go to reactivate the system it always reads that I have 5 unread email and their could be any number or none. Is their a way to reset that value? The number of running programs is not a problem. Mar...more >>

Excessive page-faulting in .NET? (i.e. several million plus faults)
Posted by Jon Rista at 8/31/2003 3:28:46 AM
I am working on an application that edits SimCity4 .dat files. This is a ..NET application written in C#. The application sometimes outperforms a similar C++ application, but I've noticed that other things seem to be slower. I recently took a look at taskmanager, and noticed that my .NET applica...more >>

DB optimisation vs OOP layer separation
Posted by Jon Maz at 8/29/2003 1:56:54 PM
Hi, I'm facing a code-optimisation issue on an asp.net/vb.net/SQL Server 2000 project. A web page containing not much more than 3 DropDownLists is taking nigh on 6 seconds to load, because each ddl opens up a separate connection to the DB, pulls out its data, and closes its own connection bef...more >>

.NET ver1.1 application taking too much virtual memory
Posted by Sherif ElMetainy at 8/29/2003 1:20:33 AM
Hello I had a windows forms application that was originally developed using .NET 1.0, it was running fine but lately i decided to move to .NET 1.1 Now the application takes a lot of memory at startup (about 150 MB) compared to 20 MB when running on .NET ver 1.0. And after running for about 15...more >>

Why is serialization so SLOW?
Posted by Mountain Bikn' Guy at 8/29/2003 12:26:33 AM
We have an app that computes a lot of numeric data. We would like to save to disk about 1-2 gigabytes of computed data that includes ints, doubles, strings and some complex objects that contain hashtables. We would like to read this data back into the app and reuse those values and state to compu...more >>

control gets clipped when moved
Posted by BestNews at 8/28/2003 3:25:17 PM
Hi All, I have peculiar problem. I Used ActiveX[AxHost wrapper] placed around 'n' number of such controls on the UserControl with AutoScroll feature enabled. Now scroll the vertical scrollbar thumb position say some of the controls go beyond the viewable area[above] such that one control[X] rema...more >>

Performance of operator overloading with structs is extremely low.
Posted by Rüdiger at 8/28/2003 1:38:46 AM
Operator overloading is a nice feature for things like vector and matrix libraries, but I have found that the performance is so low that I can not use it. I have appended a small sample program to illustrate the effect. The performance of the loop using operator overloading is 1/4 of the loop...more >>

Is this a memory leak?
Posted by ianstirkcv NO[at]SPAM yahoo.com at 8/27/2003 3:00:13 AM
Hello, I wonder if you can please help… We are running a web application built using .net framework version 1.0, service pack 2, running on Windows 2000 server, service pack 3. The server has 1 gigabytes of RAM. We are using Perfmon to monitor memory usage of aspnet_wp.exe, CPU usage, a...more >>



.NET performance vs VC6 performance
Posted by Bryan Gan at 8/27/2003 2:23:10 AM
Dear all, I am trying to develop a realtime application which will receive massive data from COM port and then process it and store it into database(SQL Server). The data came from Stock Market central, so will expect heavy load traffic in it. So in order to support this heavy traffic + ...more >>

Datareader : cast object to string...
Posted by Sam Vanhoutte at 8/26/2003 10:17:39 AM
Hello, What is the best way to cast fields of a datareader to the correct type? a) msg.Label = CType(reader("Label"), String) b) msg.Label = reader.GetString(2) c) msg.Label = DirectCast(reader("Label"), String) d) other methods, that I am not aware of :-)??? kind regards Sam Vanhoutte ...more >>

ASP.NET vs. Windows Forms
Posted by Jeff Sahol at 8/25/2003 5:31:56 PM
Anyone know of some general info on the relative performance of apps based on Web Forms vs Windows Forms? ...more >>

ASP.NET Deadlocks
Posted by Martin Blackstone [MVP - Exchange] at 8/23/2003 7:35:06 AM
We are seeing a lot of errors like the one below which when occur essentially lock up the ability to run the applications. I have browsed the support articles and they all seem to apply to the 1.0 framework and advise a hotfix to correct the issue. But we are running the 1.1 Framework. The a...more >>

Static vs. instance Methods
Posted by Victor Jones at 8/22/2003 10:33:04 AM
I was involved recently in desiging a middle tier class where we essentially need not track the state of the object, hence a class with static methods was preferred. But there were some debate as to whether it made sense to implement it as a singleton. I wanted to know if there is any perfor...more >>

Problems in Connection pooling. Urgent
Posted by Mithun Verma at 8/21/2003 3:20:10 PM
Hello All, My windows application has a form that needs to display fresh data to = the user at short intervals (say every 10 seconds). For this purpose, I = have included a timer. On every timer tick, I perform the database = related operations to display the result to the user.=20 Note: Mult...more >>

Threading and SyncLock Question
Posted by Craig Santoli at 8/21/2003 1:35:55 PM
Let's say I have the following simple class in VB.Net... Public Class MyClass Private m_strSyncLockSave as string = "Save" Private Sub Save SyncLock m_strSyncLockSave ...some code here... End SyncLock End Sub End Class Now let's say I c...more >>

To make unused object available for garbage collection?
Posted by ali at 8/21/2003 10:58:30 AM
Hi, In java we assign null to an unused abject in order to make it available for garbage collection as soon as we do not need it. This may not much increase the performance but some improve it. (note that: I know garbage collector will do this for us, but doing this by programmer is a goo...more >>

Multidimentional Arrays ATT: David Notario
Posted by Andre at 8/11/2003 3:14:53 AM
Hi, David, hope you read this.. I wanted to ask you if the next version of the framework changes the way multidimentional arrays are indexed (i.e via method calls and not by calculating positions by an offset)? Is there any particular reason why multidimentional arrays were implemented th...more >>

CLR in Perfmon
Posted by John Wood at 8/9/2003 6:16:44 PM
I noticed that if I monitor .NET CLR Memory, and add '# Bytes in all Heaps' - I usually get 0. Is it broken? How do I see how much memory is allocated by a .Net app? Thanks. ...more >>

% Time in GC for Dual CPU Machine
Posted by Mark Tucker at 8/9/2003 9:30:57 AM
In a sample web application running on a 2 CPU machine, I have the following Performance Counter values: Average % Processor Time - Total = 67% Average % Processor Time - aspnet_wp = 109% Average % Time in GC - aspnet_wp = 26% I know that the second value (109) is out of 200 because there a...more >>

Porblems with Connection Pooling: Feedback urgently required
Posted by Mithun Verma at 8/8/2003 4:14:27 PM
Hello All, I have a windows application with a SQL Server database. One of my forms needs to display fresh values from the database at very short intervals and display the same to the user continuously. My application uses a class SqlUtility that handles the interactions with the database....more >>

Visual Studio 2003 slow to build
Posted by WebDevHokie at 8/8/2003 8:13:53 AM
I am having an issue with projects that are extremely slow to build when I have a strong name key linked to it. If I take out the key, it build in seconds. But if I leave the key in, it takes anywhere from 35 to a minute to build small projects. It never used to be like this and I havent real...more >>


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