| Java "Compilation" vs. MSIL "Compilation" (23 replies) |
| microsoft.public.dotnet.framework.performance |
| I'm trying to summarize the major differences between the compilation process in Java versus .NET. Please correct me if anything below is wrong: Java: Java code is compiled into Byte Code which is stored in a ".class" file until runtime. At runtime, the Java Virtual Machine interprets the Byte Code and then executes machine code accordingly. At no point is the Java Byte Code compiled directly into... |
|
| .NET memory problem (7 replies) |
| microsoft.public.dotnet.framework.performance |
| I tracked down a general .NET memory management problem. Memory is thereby not released (given back to Windows) even though the object is internally freed by the Garbage Collector. We tested it with a simple Windows forms application in C# as well as in VB.NET. It has a button which calls one method. In the method a string with 30 million characters is created. Since ..NET uses UNI code for string... |
|
| GDI+ vs. Java rendering (2 replies) |
| microsoft.public.dotnet.framework.performance |
| There have been several comparisons of C# vs C graphics performance here lately, and the answer is to either write more comparable code, or to wait for hardware accelerated GDI . I don't buy these answers. I just wrote a simple graphics test program (160,000 50x50 filled and pened rectangles) w/ C# (rc) and Java (JDK1.4rc). I explicilty ran Java with hardware acceleration turned off and found Java... |
|
| High Performance TCP with .NET Framework (13 replies) |
| microsoft.public.dotnet.framework.performance |
| I am currently appraising weather or not to migrate development of an internal Java based server to C#. I was wondering if anyone had any feelings for the performance of the .NET TCP subsystem on a server with 100 500 clients. ( Non http like connections, always connected, each with a small but constant bandwidth ). After a little research, it seems my options for implementing this type of system ... |
|
| Fast way to get data into SQL Server from C# app (33 replies) |
| microsoft.public.dotnet.framework.performance |
| I'm writing a C# scientific app (that calls a C DLL). My app generates lots of data (doubles and strings mostly). I want to get it into a SQL Server database. Adding individual rows to an ADO.NET dataset object is way too slow! My C# app generates arrays of doubles of length 2000. This is inside a loop which has to run hundreds of thousands (or millions) of iterations. Each iteration should be a r... |
|
| communicate between threads (6 replies) |
| microsoft.public.dotnet.framework.performance |
| I am writing an application in VB.net. I would like that one thread will write to a log file. This thread will in always be in idle (endless while) and every time that I will want to write to the log, the main theard will send event to the log thread. How do I send events from the main thread to the log thread ? Is there a better way to communicate between threads ? Thanks for your time ya94@hotma... |
|
| queue and thread pooling (2 replies) |
| microsoft.public.dotnet.framework.performance |
| I would like to queue some jobs and then use thread pooling to empty the queue. The jobs are internet downloads. I would like to be able to control how many threads are working. Can someone give me a simple example for using queue and thread pooling in VB.net ? Thanks for your time. ya94@hotmail.com |
|
| queue with threaded jobs (6 replies) |
| microsoft.public.dotnet.framework.performance |
| I would like to build a queue with jobs in Vb.net. Each job will run on a different thread. The user will set how many threads (jobs) are working at the same time. When a job it finished another one will have to start automatically. I would like that the user will be able to increase the number of working threads all the time, which means that if he increase that number another thread is launch. W... |
|
| Performance Comparison: Data Access Techniques (3 replies) |
| microsoft.public.dotnet.framework.performance |
| After reading the very interesting "Performance Comparison: Data Access Techniques" http://msdn.microsoft.com/library/default.asp?url /library/en us/Dnbda/html/ Bdadotnetarch031.asp?frame true I have several questions: Did the SQL Server read from disk or did it cache most of the database? The configuration used was 100,000 customers, 1mil orders, 5mil order items with 1GB RAM on the DB server. Mo... |
|
| large scale FFTs resulting in freq. cache misses... (7 replies) |
| microsoft.public.dotnet.framework.performance |
| Hi all, : ) The current application I am writing involves the frequent application of fast Fourier transforms to a set of data. A typical data set is a 3 dimensional array of complex numbers (a custom value type based on 2 floats) of size 256 by 256 by 64. Thus the memory usage for a single data set is 33554432 bytes or 33.5 MB. I think that the simplified computational complexity of doing a 3 dim... |
|
