VS 2008 How To Determine Processor Load
Mar 9, 2010
I 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?
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Feb 22, 2010
In my applications, for improving my registry system, I wanna get the serial number (or ID) of the processor or main board.
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Jul 9, 2010
I know you can determine when the page is completed, but even when not connected to the internet the page complete event will rise when the error page is done loading to the we bbrowser. Is there a way to check if the internet is connected and loading webpages?
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Mar 10, 2011
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
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Aug 15, 2010
hi all is there any code to get motherboard or processor id?
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Aug 15, 2011
i 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?
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Apr 23, 2012
I 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.
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Jul 9, 2009
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 ....
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Jul 29, 2010
Well how can I do this? So my app is faster?
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Jun 15, 2009
Im 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)
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Jul 26, 2009
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?
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Aug 10, 2009
how 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.
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Mar 9, 2012
I 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.
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Jun 14, 2011
For setting my processor affinity mask and I need my process handle for this. How do I get it?
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Mar 3, 2012
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]
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Mar 14, 2011
I'm creating a simple word processor for class but I'm having some trouble on the close button. The Close button is supposed to close the file that the user is working on but not the word processor itself. How would I go about closing the document that the user is working on?
Here is what I have so far:
Private Sub CloseToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles CloseToolStripMenuItem.Click
Dim intfile As Object
rtbDocument.Text = ""
FileClose(intfile)
End Sub
This gives me an error message "Option Strict On disallows implicit conversions from 'Object' to 'Integer'." When I'm not using Option Strict On the code seems to work but VS gives me a warning message, "Variable 'intfile' is used before it has been assigned a value. A null reference exception could result at runtime. I'm not sure what value to assign the 'intfile' Object.
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Apr 20, 2011
How do I ensure that a process has a thread on each processor?
What I am asking is how do I address processors to ensure a thread is running on it?
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Jan 10, 2012
I'm working on a project which will entail multiple devices, each with an embedded (ARM) processor, communicating. One development approach which I have found useful in the past with projects that only entailed a single embedded processor was develop the code using Visual Studio, divided into three portions:[code]Feeding the embedded compiler/linker the code from parts 1 and 3 yields a hex file that can run on the target system. Running parts 1 and 2 together yields code which can run on the PC, with the benefit of better debugging tools and more precise control over I/O behavior (e.g. I can make the simulation code introduce certain types of random hiccups more easily than I can induce controlled hiccups on real hardware). Target code is written in C, but the simulation environment uses C++ so as to simulate I/O registers. For example, I have a PortArray data structure; the header file for the embedded compiler includes a line like unsigned char LATA @ 0xF89; and my header file for simulation includes #define LATA _IOBIT(f89,1) which in turn invokes a macro that accesses a suitable property of an I/O object, so a statement like LATA |= 4; will read the simulated latch, "or" the read value with 4, and write the new value. To make this work, the target code has to compile under C++ as well as under C, but this mostly isn't a problem. The biggest annoyance is probably with enum types (which behave as integers in C, but have to be coaxed to do so in C++).
Previously, I've used two approaches to making the simulation interactive:Compile and link a DLL with target-application and simulation code, and have VB code in the same project which interacts with it.Compile the target-application code and some simulation code to an EXE with instance of Visual Studio, and use a second instance of Visual Studio for the simulation-UI. Have the two programs communicate via TCP, so nearly all "real" I/O logic is in the simulation program. For example, the aforementioned `LATA |= 4;` would send a "read port 0xF89" command to the TCP port, get the response, process the received value, and send a "write port 0xF89" command with the result.I've found the latter approach to run a tiny bit slower than the former in some cases, but it seems much more convenient for debugging, since I can suspend execution of the unmanaged simulation code while the simulation UI remains responsive. Indeed, for simulating a single target device at a time, I think the latter approach works extremely well. My question is how I should best go about simulating a plurality of target devices (e.g. 16 of them).The difficulty I have is figuring out how to make each simulated instance get its own set of global variables. If I were to compile to an EXE and run one instance of the EXE for each simulated target device, that would work, but I don't know any practical way to maintain debugger support while doing that. Another approach would be to arrange the target code so that everything would compile as one module joined together via #include. For simulation purposes, everything could then be wrapped into a single C++ class, with global variables turning into class-instance variables. That would be a bit more object-oriented, but I really don't like the idea of forcing all the application code to live in one compiled and linked module.What would perhaps be ideal would be if the code could load multiple instances of the DLL, each with its own set of global variables. I have no idea how to do that, however, nor do I know how to make things interact with the debugger. I don't think it's really necessary that all simulated target devices actually execute code simultaneously; it would be perfectly acceptable for simulation instances to use cooperative multitasking. If there were some way of finding out what range of memory holds the global variables, it might be possible to have the 'task-switch' method swap out all of the global variables used by the previously-running instance and swap in the contents applicable to the instance being switched in. Although I'd know how to do that in an embedded context, though, I'd have no idea how to do that on the PC.
Is there any nicer way to allow simulation logic to be paused and examined in VS2010 debugger, while keeping a responsive UI for the simulator front-end, than running the simulator front end and the simulator logic in separate instances of VS2010, if the simulation logic must be written in C and the simulation front end in managed code? For example, is there a way to tell the debugger that when a breakpoint is hit, some or all other threads should be allowed to keep running while the thread that had hit the breakpoint sits paused?If the bulk of the simulation logic must be source-code compatible with an embedded system written in C (so that the same source files can be compiled and run for simulation purposes under VS2010, and then compiled by the embedded-systems compiler for use in real hardware), is there any way to have the VS2010 debugger interact with multiple simulated instances of the embedded device? Assume performance is not likely to be an issue, but the number of instances will be large enough that creating a separate project for each instance would be likely be annoying in the absence of any way to automate the process. I can think of three somewhat-workable approaches, but don't know how to make any of them work really nicely. There's also an approach which would be better if it's possible, but I don't know how to make it work.Wrap all the simulation code within a single C++ class, such that what would be global variables in the target system become class members. I'm leaning toward this approach, but it would seem to require everything to be compiled as a single module, which would annoyingly affect the design of the target system code. Is there any nice way to have code access class instance members as though they were globals, without requiring all functions using such instances to be members of the same module?Compile a separate DLL for each simulated instance (so that e.g. if I want to run up to 16 instances, I would include 16 DLL's in the project, all sharing the same source files). This could work, but every change to the project configuration would have to be repeated 16 times.Compile the simulation logic to an EXE, and run an appropriate number of instances of that EXE. This could work, but I don't know of any convenient way to do things like set a breakpoint common to all instances. Is it possible to have multiple running instances of an EXE attached to a single debugger instance?Load multiple instances of a DLL in such a way that each instance gets its own global variables, while still being accessible in the debugger. This would be nicest if it were possible, but I don't know any way to do so.If I use one VS2010 instance for the front-end, and another for the simulation logic, is there any way to arrange things so that starting code in one will automatically launch the code in the other?
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Aug 29, 2009
Is it possible to determine how much RAM a process is using?Let me rephrase that, is it possible in VB.net to do this, and if so, how can I do this?
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Feb 19, 2010
How do I determain the servername that I should point to?
Here is my
Public Class frmViewReport
Private Sub frmViewReport_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
ViewReport("C:a2.rtp", , "@parameter1=test�mter2=10")
[code]....
Now... It seems to be unhappy with the following statement and I think it might be because I provided the wrong servername?
ConInfo.ConnectionInfo.UserID = "Admin"
ConInfo.ConnectionInfo.Password = ""
ConInfo.ConnectionInfo.ServerName = "Microsoft.Jet.OLEDB.4.0;Data"
ConInfo.ConnectionInfo.DatabaseName = "TestDB_01.mdb"
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Sep 21, 2011
-nput a sentence. determine if the last letter is punchtuation (ie. period, question mark, exclamation point). if not, display an appropriate message.
-input a sentence. count the spaces and determine the number of words, in that sentence
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Mar 3, 2010
I'm simulating some threading in a Windows Service, and the Thread.Start routine for each of my threads points directly to the following:
Private WithEvents CheckForOrdersTimer As System.Threading.Timer
Private Sub timerCheckForContracts_Tick(ByVal stateInfo As Object)
' Ticks every 5 seconds, then spawns threads until we're at our max
Do
[code]....
the threads aren't even doing anything yet, but with more than two threads running at the same time, my processor (Core 2 Duo 2.4 w/ 4GB) gets pegged and Windows gets really sluggish. According to what I've read, Thread.Sleep shouldn't be consuming any resources at all while it waits, but it may as well be running in a tight timing loop.
EDIT: Per the requests, I've expanded the amount of code I'm using. I was initially doing some database work before spawning each thread, but I've removed it and the processor maximization still occurs with just the code here (and, of course, the OnStart method for the Windows Service.
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Mar 16, 2011
I need to add cut, copy, and paste functionality to my word processor. I'm using Visual Studio 2010 and we have no textbook this semester. I know they're in that tool box somewhere!
Public Class wordProcessorForm
Dim mblnDirty As Boolean
Private Sub wordProcessorForm_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
[Code] .....
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Sep 19, 2009
I have an advanced word processor and I need to add a ruler. I have searched the web and cant seem to find just the ruler control in inches.
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Sep 21, 2009
needs coding in vb6 to access personal computers processor id / sl number, hard disk id / serial number. The pc is running with xp operating system.
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Jan 23, 2012
I am calling a function from a VB.NET webserver to a custom written unmanaged DLL.If we call this DLL via a webservice on a multi-core server we run into problems and it always crashes.If I reboot the server and make it only use a single-core, it always runs fine and never crashes.I know the DLL call is responsible for the crash as I have outputted debugging code just before and after the DLL call.I can force the processor affinity of the .NET code to 1 core but this doesn't apply to the unmanaged DLL.How can I force the unmanaged DLL to only run on a single core as I am sure this will solve the problem?
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Mar 5, 2012
I'm simulating some threading in a Windows Service, and the Thread.Start routine for each of my threads points directly to the following:
Private WithEvents CheckForOrdersTimer As System.Threading.Timer
Private Sub timerCheckForContracts_Tick(ByVal stateInfo As Object)
' Ticks every 5 seconds, then spawns threads until we're at our max
[code].....
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Apr 13, 2009
I am writing a service (service.exe) which I will be installing multiple times on a server with different display names (service1, service2,... servicen).Based on the display name the service will perform slightly different operations (e.g. monitor a different COM port).How can I programmatically determine the display name to find out which instance is executing?
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Jan 10, 2010
Im just trying to determine if a website exists when i navigate my webbrowser. via messagebox.Ive tried this so far but it wont work:
Private Sub WebBrowser1_DocumentCompleted(ByVal sender As System.Object, ByVal e As System.Windows.Forms.WebBrowserDocumentCompletedEventArgs) Handles WebBrowser1.DocumentCompleted
If WebBrowser1.DocumentText.Contains("Action canceled") Then
[code]....
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May 22, 2010
I'm used to coding in VB6, where arrays of components and their events were simple. I've got:
Event(args) Handles Comp1.click, Comp2.click, Comp3.click
How do I determine which component had been clicked?
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