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Hi,
if your program is using all CPU cycles, it is most likely you did something stupid in your code, such as implementing a loop that always or under certain conditions does not wait on anything (no blocking read, no time delay). Here is the simplest bad example:
while(true) {
if (DataAvailable()) ReadData();
}
Now assume DataAvailable is a simple method that most often returns false... your loop is spinning at the speed of light, wasting all the cycles of a CPU core while not doing much useful work. Just add a Thread.Sleep(100) or so in there.
Luc Pattyn
I only read code that is properly indented, and rendered in a non-proportional font; hint: use PRE tags in forum messages
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so whts the technique to optimize this...?
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if your code has one or more loops like the one I have shown, then using a blocking read or adding a time delay is the solution, as I have told you already.
and that is not "optimization", it is "elimination of bad mistakes".
Luc Pattyn
I only read code that is properly indented, and rendered in a non-proportional font; hint: use PRE tags in forum messages
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Then I guess my only go is to use a ManualResetEvent...will this cause further performance problems?
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deostroll wrote: will this cause further performance problems?
1. how could anyone tell, without seeing any of the code?
2. there are no performance problems, there is a design problem.
Luc Pattyn
I only read code that is properly indented, and rendered in a non-proportional font; hint: use PRE tags in forum messages
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Well, most of the code is open source. I'm making use of the dotnettelnet[^] libraries. It is used to connect to machines via telnet.
They've given a test client which shows the basic usage of the library...thinking that that is the apt implementation I went and coded based on the example shown for the test client...which used the while loop.
Since you've suggested it prob must be the while loop I completely removed that construct. But then I began wondering how do I make my app wait until all the work is done...Due to the particular pattern of implementation of this library, a manual reset event came to mind...
If you do plan to look at it...know this...there is a DataAvailable event triggered by the wrapper class when ever we have received data over the (socket) connection. That is where I code my logic; reading the incoming stream and performing actions.
PS: to get the source code go 2 the link that point to the project's actual sourceforge page...its all there...
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deostroll wrote: If you do plan to look at it..
No, I don't.
deostroll wrote: there is a DataAvailable event
such event is normally intended for you to read the data that is already there, and not to wait for more. The event should fire again when more comes in.
The alternative is to have a separate thread for reading, with a loop, waisting time, either through a blocking read or a thread.Sleep
The end.
Luc Pattyn
I only read code that is properly indented, and rendered in a non-proportional font; hint: use PRE tags in forum messages
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r u suggesting tht I've a while construct wherein I just do a Thread.Sleep(), and loop it until my job is done...
while (JobDone)<br />
{<br />
Thread.Sleep(5*1000);<br />
}
PS:I can update JobDone via another thread...
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hi.
i work in ASP.NET 2005 & creat a website project.
i want open picture with open dialog .please tell me who i can load picture with open dialog?
i am beginner .
whether i need a componet as toolbar?
please help me.
i need help body.
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Psst. See the bit at the top left? You know, where it says "C#"?
If you look really closely, you might find a button near that saying "ASP.NET". If you press that, you stand a better chance of a useful answer.
No trees were harmed in the sending of this message; however, a significant number of electrons were slightly inconvenienced.
This message is made of fully recyclable Zeros and Ones
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Did you want help or not ? Did you post to the ASP.NET forum yet ?
Christian Graus
Driven to the arms of OSX by Vista.
Read my blog to find out how I've worked around bugs in Microsoft tools and frameworks.
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Hi All,
Can anybody tell me that how to open Select User Dialog box in C#?
In Service Manager --> LogOn Tab :--> Select This Account and Click Browse Button ?
I wanna open this dialog box where u can select/find user ?
Reply ASAP.
Thanking You,
Sunil G.
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Message Closed
modified 23-Nov-14 7:22am.
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The code is in C++.
And in C# project he is using C++ DLL.
Can u give the code which is in C#?
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I wish to know is there a way that I can send any clase that uses the System.IO.Stream base to a function.
public void Display(System.IO.Stream _data)
{...}
System.IO.FileStream _file=System.IO.File.Open(_FileName.ToString(), System.IO.FileMode.OpenOrCreate, System.IO.FileAccess.ReadWrite, System.IO.FileShare.ReadWrite);
Display(_file); <- works fine,
System.IO.StreamWriter writer = new System.IO.StreamWriter("Filepath.txt");
Display(writer); <- No GO.
woops!! yes its true it works for FileStream its StreamReader inwhich doesnt.
modified on Tuesday, November 3, 2009 1:50 PM
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You cant, at first you can use the StreamReader(Stream) constructor, Pass your FileStream instance to convert FileStream to StreamReader.
Thanks
Md. Marufuzzaman
Don't forget to click [Vote] / [Good Answer] on the post(s) that helped you.
I will not say I have failed 1000 times; I will say that I have discovered 1000 ways that can cause failure – Thomas Edison.
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I have found some libs that can do this. Libs like ICSharpCode.SharpZipLib.BZip2.BZip2.Decompress(stream in,stream out);
I want to know how can they do this? I tried several ways but all with failure.
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Need to do some more RnD regarding this...
Thanks
Md. Marufuzzaman
Don't forget to click [Vote] / [Good Answer] on the post(s) that helped you.
I will not say I have failed 1000 times; I will say that I have discovered 1000 ways that can cause failure – Thomas Edison.
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Makes no sense to me, FileStream derives from Stream
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it works fine for me, as it should.
Luc Pattyn
I only read code that is properly indented, and rendered in a non-proportional font; hint: use PRE tags in forum messages
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Hello guys,
I know this isn't the WCF Message board but the problem isn't directly with WCF. Now my problem is that at work in our application we have a main client that access certain information from a WCF that than that access the database. And the other business objects are stored in seperate dlls. Now an instance of the WCf service that we are using is being called from the mdi client. now the problem is that i want to access that instance of the service from one of my business objects without having to create a web reference to the service in that dll. Hope i explained my self well and you can understand me sorry if i didn't  Any help would creatly be appreciated.
Thank you
Regards,
Christian Pace
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If you are asking if you can have application A call application X (WCF server) without using WCF or even sockets then no.
If you are asking if you can use functionality from X in A directly then that depends on the functionality.
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A c# application (Visual Studio 2005) creates a SQL EXPRESS database file (.mdf)
How can I convert it in a text file (csv or other)?
thanks
Mauro Savoiardo
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