C# - Does The Size Of The EXE Affect The Execution Speed
Apr 15, 2011
I'm going to create some command line tools that make use of some large library DLL's. For security reasons I plan to embed the DLL's in the command line's EXE. Example:Suppose the CL's (command line tool) functionality is to just copy a file from A to B. The procedure to do this is included in a 100MB library DLL. If I would just take out the lines of code from the DLL and paste them in the CL's code then the CL would only be 10Kb.But I don't want to do that, so I embed the full library in the CL's EXE, which will make it 101MB in size.I once read somewhere (cannot remember where) that Windows would only use the part of the EXE that's actually used. So if that's true then it shouldn't matter if the EXE size is 10Kb, 100MB or 1GB.I own the code of the DLL, so if the best solution is to not include the whole DLL but just only link to or include those code files, of the DLL project, that are used by the CL then I will go that way.will the 10Kb CL run faster and consume less memory than the 101MB CL?
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May 7, 2012
I have an app that reads a directory to get the filenames in a directory for each File in Directory(process file) next file. I want to know if the file size makes a difference to the time it takes to get the filenames.eg if a folder contains 10,000 photos of 1 megapixel and another has a folder of 10,000 photos of 8 megapixels will it take the same time.
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Feb 21, 2012
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.
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Jan 27, 2010
Does a the size of the class affect the memory usage of the application? is it better to break big classes into smaller classes or just group them up into one big class.
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Aug 10, 2009
i am trying to complete a project. My task is to read large TXT files (300 files, 2.2 GB in total) read the customers inside, perform some data calculation and write each customer data to a separate txt file.
I made a code in VB6, it runs fine, however it takes 8 days to run on a quadcore processor, utilizing 20-30% of the CPU. Now I upgraded the code and am running on VB.NET 2008, the latest version. The speed still remains the same, and the CPU usage is also about the same.
Anyway I can make this process faster. I have a quadcore PC with 8GB of ram, possible to maybe make VB utilize all the CPU say 100%? so it executes atleast 2 to 3 times faster.
[Code]...
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Feb 15, 2012
"Does the selection type of variables speed up the code execution in VB.NET?"For example, I have two same exactly same projects where the first project is running with all Single variables and the other project which running with all Double variables.Is there any difference in term of the speed of code execution?This is because I'm working on a project which is very critical in term of the speed of execution. However, I'm using Double variables for most part of the code.
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Mar 30, 2009
For some reason, .NET applications that I've written seem to have issues if they're launched when Windows starts (by being in the Startup folder for instance). An application that can finish in 3/10 of a second if one launches it normally may seriously take 45-90 seconds to finish if it was launched when Windows loads. Even if I just manually wait 30 seconds after login and launch the program, it'll complete virtually instantly while a copy launched at startup is still struggling along, so it isn't just that Windows is still loading...this continues AFTER that finishes and all HDD activity stops.Writing something to disk using an IO.anything goes at about 20KB/s during this event.
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Nov 14, 2011
I have a per-call WCF service that serves a number of clients. I'm looking to speed up the services by running some background processes so they don't block or slow down the main function of the services.
One example is that the main function needs to return a set of data, while the background thread needs to record some statistics based on the parameter(s).
Code:
Public Function GetAccountDetails(id As Integer) As AccountDetails
Dim retVal As New AccountDetails
Dim a As New Accounts
[Code]....
If I use this background thread to record the statistic it doesn't block the main thread from returning the data to the client.
It's been working well in test scenarios, but my question is, are there any dangers with leaving this thread to execute without Joining it before returning the data to the client? Could there potentially be any loss of statistic data? Could there be potential memory problems on the server side?
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Jul 2, 2011
I needa way through the visual basic code / project tomeasure download and upload s
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Jun 30, 2011
I have a ftp download in a background session that updates to a progressbar, file download takes about 2 minutes and it works great, gives me the length that has been downloaded, total size, and the bytes remaining.I thought it would be cool to have the speed show as well but not sure I have all the info to work with, or how exactly to do it. This is my loop, and what I do have works fine just want to have the speed show as well if possible:[code]
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Nov 24, 2010
I have been playing around with different types of native code operations in Visual Basic and then inspecting the code with Reflector to see what kind of MSIL is produced. For example, I wondered, in a one line If-Then-Else different than an If-Then-Else split onto multiple lines, ie.
[Code]...
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Dec 31, 2010
how 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?
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Nov 30, 2010
I 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.
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Jul 29, 2009
i 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.
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Jan 4, 2012
i 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
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Oct 23, 2008
I'm using visual studio 2008 and creating a Windows For Application.
I'm almost completed my little application and what I've discovered just recently is that any change I made is not taking affect.
What I mean is if I change the display name of a button or insert a msgbox popup, it doesnt make it to the build when I run it. There are no errorswarnings.
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Mar 1, 2011
Private procQueue1 As New Queue(Of c_proc)
..
..
..
Private Sub updateQueue(ByVal num As Integer)
[Code]....
If I make changes to pq will they affect procQueue1?
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Jun 7, 2011
I have a simple 'Working' form that runs on its own thread to keep the user informed that the application hasn't died during long running operations. In order to get the working form to update I had to insert a DoEvents() call. I'm curious, will this only pump messages for the current thread I'm in, or will it do it for the whole application? I would prefer that the main window stay unresponsive till the operation finishes. Just to be clear, I'm fine with the code I have, but I would like to know how DoEvents() behaves with threads.
Below is the code for the working form.
Public Class frmWorking
''' <summary>
''' Creates and starts a new thread to handle the Working Dialog
''' </summary>
''' <returns>The thread of the Working dialog.</returns>
[Code] .....
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Jul 27, 2011
config files, or dll.config for a class library project (dll). Does the dll have to be compiled for the changes in the config file to take affect?The problem I've noticed is that I add a reference to another solution to my dll, and it still has a connection string that points to the test database, even though I've updated it in the config file.
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May 21, 2012
I am using a Checkbox outside of a datagrid. When i select the check box autopostback is true, and this would then show the image, but i cant access the images within the datagrid with that script. If i use a seperate image outside of the datagrid the script works. How can i get this script to work finding when the checkbox out side of the datagrid is checked to then show the image within the datagrid?
The script i am using is
<script runat="server">
Sub Check(sender As Object, e As EventArgs)
[code].....
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Apr 26, 2012
I am COMPLETELY new to Visual Basic except for a high school Computer Programming class and I'm attempting to make a text-based game via VB2008. There is a tough problem I'm having. I followed a few YouTube tutorials and managed to create something where you can press a button and have a window open where you search for a text file and have it's file path appear in a text box. My problem now is that I want certain lines of this text file to change the text of certain Labels on a different form. I don't know how to do this though?
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Aug 20, 2010
I would like to improve testability of some legacy code. To achieve this, I am introducing interfaces for existing classes (and have existing classes implement those) and factories that create an instance of a test object or an object of the original class, depending on some configuration setting.
I can foresee some internal feedback along the lines of 'but this will affect performance', but I would like to be able to test some code (for a service layer in this case), without having to deploy all underlying layers and setup a database server. Do you have any experience where the indirection introduced did affect performance noticeably? What would be a constructive way to respond to the aforementioned feedback?
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Apr 15, 2011
I would like to improve testability of some legacy code. To achieve this, I am introducing interfaces for existing classes (and have existing classes implement those) and factories that create an instance of a test object or an object of the original class, depending on some configuration setting.I can foresee some internal feedback along the lines of 'but this will affect performance', but I would like to be able to test some code (for a service layer in this case), without having to deploy all underlying layers and setup a database server.Do you have any experience where the indirection introduced did affect performance noticeably? What would be a constructive way to respond to the aforementioned feedback?
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Jan 11, 2012
What does Windows do to an app when it is run in Compatibility Mode?Is there a way I can detect the compatibility mode settings in .NET?
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Mar 10, 2009
I have a project that has several combo boxes on one form. The selection in a box can affect the possible choices in subsequent boxes. Right now I am using SelectedValueChange to fire the code that loads the choices in the later boxes. There are a number of possible events that I could use:SelectedIndexChangedLeaveLostFocusTextChangedI was wondering if someone could give me a rough idea what the differences are between these. Is there a 'best' evnet to use?Also, I find that most events work when the choice is made with a mouse click but if you click in the box and type in a value an event does not fire. How can I program for the case where the user enters a value by typing it in instead of choosing from the drop down list?
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Apr 15, 2012
I've only used type inference when using LINQ in VB.NET. However, I'm aware that type inference can be used in other parts of the language, as demonstrated below:
Dim i = 1 'i is inferred to be an Integer
Dim s = "Hoi" 's is inferred to be a string
Dim Temperatures(10) as Double
[code]....
I can see how type inference reduces the amount of typing I would need to write a piece of code and can also make it quicker to change the type of a base variable (such as Temperatures(10) above) as you wouldn't need to change the types of all other variables that access it (such as T). However, I was concerned that the lack of an explicit declaration of type might make the code harder to read, say during a code inspection, as it may not be immediately obvious what type a variable is. For example, by looking at just the For loop above, you might correclty assume that T is some floating point value, but wouldn't be able to tell if it's single- or double-precision without looking back at the declaration of Temperatures. Depending on how the code is written, Temperatures could be declared much earlier and would thus require the reader to go back and find the declaration and then resume reading. Admittedly, when using a good IDE, this is not so much of an issue, as a quick hover of the mouse cursor over the variable name reveals the type.
Also, I would imagine that using type inference in some situations could introduce some bugs when attempting to change the code. Consider the following (admittedly contrived) example, assuming that the classes A and B do completely different things.
Class A
Public Sub DoSomething()
End Sub
End Class
[code]....
It is possible to change the type of ObjectList from A to B and the code would compile, but would function differently, which could manifest as a bug in other parts of the code.With some examples of type inference, I would imagine that most people would agree that its use has no negative affect on readability or maintainability. For example, in Java 7, the following can be used:
ArrayList<String> a = new ArrayList<>(); // The constructor type is inferred from the declaration.
instead of
ArrayList<String> a = new ArrayList<String>();
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Jul 19, 2009
i created a custom control that accepts only datetime values. [url] but i'm having some issues with it when it is bound to a column and then i navigate through records. it seems to trigger a row-change to all navigated records even though i haven't manually change anything on these records.
this is affecting the last_update_date and last_updated_by fields of my tables. i need to only affect records that were manually changed. can anyone help me? also, any date field should be bound to the Value property of this control instead of Text. haven't figured out how to remove the Text from bindable properties yet.
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May 5, 2009
how 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?
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Jun 8, 2011
Now all went well about from using the structure correctly. The working of the structure was perfect. How ever i missed Two important issues. The structure needed a fixed size of 10 items (9 in programming terms starting from 0) And also out of the 5 items allowed to be chosen as one of the member types for the structure a limit of 5 items of that particular type.
[Code]...
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Jun 9, 2011
I need to make a save button. The user will work in main form. User also has Settings in the MenuStrip, when the user clicks Settings a new form will open. There user has ability to make changes that will affect the Main form. This is the code:
If CheckBox1.Checked = True Then
bib.Panel2.Hide()
End If
This is the change that the user will be able to do that will affect the Main form, but I'm not really sure how to make that the CheckBox1 will be saved when the user clicks it and the clicks OK button. I also want to know how to make a cancel button.
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