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C# code to monitor CPU

Posted on 2004-03-22
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Last Modified: 2007-12-19
i have to develop a C# code to monitor CPU and memory usage of any host in the Internet.Assume there is no security restriction
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Question by:Hermoinee
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5 Comments
 
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Expert Comment

by:lorddef
ID: 10649780
I'm sure there is. Unless its a machine you have access to...
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by:kolpdc
ID: 10650314
i am absolutely sure that you do not have access from your computer to clients spread throughout the network. it should not be allowed. else you could collect all data of all cumputers connected to the internet.

if you are able to put little "satellite"-apps onto each client you want to monitor (for example in intranet), then there should be a possibility.
1.1) every satellite detects the data and writes it into a database (db, file, ...)
1.2.) ... sends collected data to a server containing more intelligence

2.) activeX-control and webbrowser? (microsoft-TECHNICs...;)
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cookre earned 500 total points
ID: 10652924
Both of those requests can be handled by the c# WMI interface.

For available on the local box:
mgmtScope = new ManagementScope("root\\cimv2");
mgmtScope.Connect();
System.Management.ObjectQuery oqr = new System.Management.ObjectQuery("SELECT * FROM Win32_PerfRawData_PerfOS_Memory");
ManagementObjectSearcher query1r = new ManagementObjectSearcher(mgmtScope,oqr);
ManagementObjectCollection queryCollection1r = query1r.Get();            
foreach(ManagementObject mo in queryCollection1r)
       {
       return (UInt64)mo["AvailableBytes"];
       }  

Here's a description of what ManagementScope() looks like for remote boxes:
http://www.csharphelp.com/archives2/archive334.html

For CPU usage, you'll have to sift through these to decide which you want:
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/wmisdk/wmi/win32_perfformatteddata_perfos_processor.asp
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