I am currently doing the project using vb.net which require me to find the proccesor speed and memory of ram....now i am searching the code from internet ....so currently, i havnt done anything.....i think i should use WMI or windows API to get those Info ....
View 5 RepliesI am trying to create a program in Visual Basic which will measure the performance of the CPU with every core, one at a time. In this program, I decided to place a couple of text boxes that display the processor speed and the actual processor speed. I need to get the actual processor speed to update and I have tried doing this already using a timer set to tick every second. However, when I load the program it runs really slowly and prevents me form doing anything within the program, including trying to close it down, and all it does is updates the text box every second. I have looked in task manager to find out how much CPU the program is using and it shows that my program is using 0 - 3% CPU.
Here is the code currently use
Private Sub Timer3_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer3.Tick
Dim mSearcher As New ManagementObjectSearcher("SELECT * FROM Win32_Processor")
[Code]....
Not really asking for code, but I'm interested in knowing the basics of "thread performance".For example, you try to copy a bitmap in a pixel by pixel operation. (Is slow, but it is a nice example)
[code]...
This is, of course, very buggy and causes a lot of violation errors etc. But that doesn't matter right now. How come the multi-threading way is so much faster than the regular routine? Is the processor not running on full speed with the first code, and is it working harder on the second?I find it weird to see this type of "threading performance increase", as if every single thread gets their own piece of processor speed allocated like it is a new process
How do i exactly check internet connection speed.I have searched around google and found out a method w/c will Download a file like 1mb size, then it will calculate the speed.
View 1 Replieshow do i check the bandwidth (download speed and possible upload speed) of a user in vb.net or php that uses my app or visits my site resp?
View 1 RepliesI have a codes that calculates DownLoad speed and UpLoad speed kb/s. I would like to implement this kind. I also want to put such kind of graph. Any article or links where can I start building my own like that.
View 2 Repliesi want to monitor the speed at which my system is currently Downloading and uploading. I dont have any idea how will it can be done.
View 6 Repliesi want to check for the lan speed and put this speed value in a progress bar.
for example:
[==== ] the lan speed now is 23 KB/s
and there is another problem is if there are a LAN and a WiFi adapter in the same time how do i check for the speed for both adapters
hi all is there any code to get motherboard or processor id?
View 2 Repliesi have 1 old and 1 new pc and i want to use old pcs processor :D (it need for my experiments :icon_evil: lol just joking ) i know i dont need this pcs power but i dont want to junk my other pc is there any way to do it.i just need how can i connect them?i ll write a library for other pcs and i give a order to use bla bla functions and i want it says return information to my new pc. i know we have network delay. but for example network rendering its accelerates the process too much.i want working in partnership this two pcs for my programs?
View 1 Replieshow would i go about getting the of a fan of a computer that my program is running on in rps(revolutions per second) using vb.net?
View 4 RepliesI am looking at developing a pre-processor and wanted to know how to configure IIS to pass the requesting page to it before it is returned. For example, the user would navigate to a page with a ".app" extension and IIS would send the file to a console program I wrote to be interpreted, before sending the page back to the user.
View 1 RepliesWell how can I do this? So my app is faster?
View 5 RepliesIn my applications, for improving my registry system, I wanna get the serial number (or ID) of the processor or main board.
View 1 RepliesIm creating an application to create rich text documents. As a part of of I have to add a text input field that can produce MS Word like features so that I can do word processing on the writing text.
At the moment VS studio provides, only Rich Text Box . But it doesnt provide that kind of features of the word processor.
Is it possible to add a word processor control to the Form if possible how can I do it? (I need to do this using the features of VS 2008 TS)
I developed my application using vs2008 on a 32bit XP machine using ms access. My new machine is Vista 64bit using vs2008. Ms access has stopped working. It is looking for a 64bit software. Is there any? how do I work around this? will this hurt me when deploying to non 64bit machines?
View 3 Replieshow to determine this? I know how to get the "processor ID" etc. but this is apparently not a unique identifier.This is for an intel i7 975. My boss has asked us to make sure that no-one tampers with several parts of a process control computer.
View 6 RepliesI was wondering is it possible to search the registry for a string containing "shutdown" but as a proccess wich takes about 20% processor power instead of the 50% i cant quite afford. Its a nasty joke going around school atm to stick a shutdown command on computer startup, was gonna see if i could do something about it.
View 4 RepliesFor setting my processor affinity mask and I need my process handle for this. How do I get it?
View 3 RepliesI have a multi-processing application that kicks off up to 4 threads at a time to process data into a SQL-Server database. It seems to work okay, except at times the processors are pegged at 100% and all threads slow down a bit.
So, what I want to do is conditionally fire a thread based upon the processor load... if they're already running at 100%, it makes no sense to kick off another thread.
Is there a way to determine what the processor load is? Task manager shows processor load, so there probably is... but how do I do it?
I get this warning message when I run my project. Can someone explain to me what this means and how I can remove it, or if I need to worry about it.
[code]
In VB 2005, I am calling a C++ DLL function that returns the address in memory and size in bytes of a jpeg image. How can I load that jpeg image directly from memory into a picture box in my VB form? I cannot afford to save it to disk first.
View 10 RepliesIm getting a problem with one of my programs I have made in visual basic.NET where it gives me a memory error when i debug the program in the IDE. the exact error is this: "Attempted to read or write protected memory. This is often an indication that other memory is corrupt". My program basically has a few forms with text fields on that get their text values from an access database on the same hard drive. Im wondering if im doing something wrong because my program just seems to eat up memory whenever it does anything. For example I have one form that has a combobox on it and when you change the drop down list selection it retreives a few strings from the database and puts them into the relevant text boxes, if you keep changing the selection then the memory usage (in task manager) just keeps going up and up. occasionally I get the error mentioned above when debugging but in my built version of the program it throws an exception everytime the memory usage gets past 49K.
Also I noticed when debugging in the "immediate window" frame I get the following message often:A first chance exception of type 'System. Invalid OperationException' occurred in System.Data.dll...Do I need to somehow be "releasing" the memory that is used to gather data once it becomes redundant?
I am using the following code
This error occurs :
Attempted to read or write protected memory. This is often an indication that other memory is corrupt.
Attempted to read or write protected memory. This is often an indication that other memory is corrupt.
Public Class FormRegEnumValue
[CODE]......................
QuoteSystem.AccessViolationException was unhandled Message="Attempted to read or write protected memory. This is often an indication that other memory is corrupt." Source="System.Windows.Forms"
Im designing a web browser and i continue to receive this error after going to about 3 websites it crashes with that error.
I have a BackgroundWorker object that I instantiated to perform a DB process on a background thread ansynchronously. I have event handlers for DoWork and RunWorkerCompleted. I can tell that the BackgroundWorker is disposing of itself because I added a message box into the Disposed event handler.Is it necessary to detach the event handlers to ensure that the memory is cleaned up and that there are not memory leaks?
View 1 RepliesI've noticed that every time I start a new thread in my program, the memory usage jumps about 1000k and it never goes back down. I have ensured that the thread is no longer running, and only one instance of my worker thread is ever running at a time. I am using ThreadPool.QueueUserWorkItem and ASyncOperation to get stuff done. The program starts using a Sub Main in a module that uses STAThread; I read that using STAThread instead of MTAThread makes it impossible for the Garbage Collector to get in and consider objects for garbage collection. However, when I change the STAThread to an MTAThread, the WebBrowser control in my frmMain cannot be instantiated.
I get this exception:
Code: An unhandled exception of type 'System.Threading.ThreadStateException' occurred in System.Windows.Forms.dll
Additional information: ActiveX control '8856f961-340a-11d0-a96b-00c04fd705a2' cannot be instantiated because the current thread is not in a single-threaded apartment. I do threading with the WebBrowser control, so will using MTAThread fix my problem? If so, how should I partition my code so that the WebBrowser control won't be affected by the above exception? I call the thread repeatedly with a timer (although only one instance ever runs at a time), and my program's memory usage starts at about 5000k and can jump to 300,000k+ depending on many times the thread needs to be called.
I cannot use Visual Basic 2008 at all. When I go to "new project" and choose "Windows Form Application" I get this error.I have tried multiple uninstall/reinstall with no result.A microsoft reply to this suggested that I needed: " .NET Framework 2.0 Service Pack 1 " I checked, and I did not have the .netframework 2.0 service Pack 1.
When I tried to download and install the above from Microsoft.com, the istaller said that "it was not allowsed" and I was not able to install the service pack 1.
I tried Uninstalling net framework 3.5, 3.0, 2.0 and then reinstalling .netframework 2.0 sevice pack 1; then reinstalling Visual basic 2008 express edition. At the reinstall of Visual basic 2008, .netframework 2.0 sevice pack 1 is unistalled by .net framework service pack 2.When I check the foruims for simiar problems, the formus are mostly for Visual basic 5.0, or other programs that I do not have.
Here is the programs I have installed:
Operating system: Windows XP
Microsoft .net framework 1.1
Microsoft .NET framwork 1.1 Hotfix(KB928366)
Microsoft .Net Framework 2.0 Service Pack 2
[code]....
All the security updates and hotfixes for Widows XP.
The follow code can be called about 6K times on the server it is run on then gets a out of memory error in the last catch statement. I don't see what is wrong with the code, it works well up until the out of memory..
Public Function AddUserToGroup(ByVal sSamAccountName As String, ByVal sGroupName As String) As Boolean
Try
Dim returnStatus As Boolean = True[code]......
I have two forms, Form1 and Form2. Form2 has a button to show OpenFileDialog. I call Form2 from Form1 by a button. My startUp Form is Form1. When i start debugging, i press my Form1's button to show my Form2, it shows, but when i click On Form2's Button to show OpenFileDialog it is giving me exception that
"Attempted to read or write protected memory. This is often an indication that other memory is corrupt."
When i set my startup Form to Form2 and click Form2's Button to show OpenFileDialog then it shows!