How to fetch CPU Usage from DOT Net

[Vijay Ram]

Hi All,

Is there any way to get the exact CPU Usage which is shown in Task Manager.
Any code snippet or ideas will be appreciated.

Thanx in advance,

Vijay

 

[Fergus Cooney]

Hi Vijay,

You need to use one of the Performance Counters:

Imports System.Diagnostics

Dim oPerf1 As New PerformanceCounter

oPerf1.CategoryName = "Processor"
oPerf1.CounterName = "% Processor Time"
oPerf1.InstanceName = "0"

Dim I As Integer
For I = 0 To 100
SomeListBox.Items.Add (oPerf1.NextValue)
Threading.Thread.Sleep (20)
Next

Regards,
Fergus

ps. You posted to a lot of groups there. I'm not sure how relevant this
question is to ADO and ASP.??

 

[Gary]

You can use the System.Diagnostics.PerformanceCounter class. The
PerformanceCounter component can be used for both reading existing
predefined or custom counters and writing performance data to custom
counters.
This sould get you started:

Dim myCounter As System.Diagnostics.PerformanceCounter = New
System.Diagnostics.PerformanceCounter()

myCounter.CategoryName = "Processor"
myCounter.CounterName = "% Processor Time"
myCounter.InstanceName = "_Total"
MessageBox.Show(myCounter.NextValue().ToString()) 'cpu usage

Cheers,
- Gary -

 

[Herfried K. Wagner [MVP]]

Hello,

Is there any way to get the exact CPU Usage which is shown
in Task Manager. Any code snippet or ideas will be appreciated.

http://www.google.de/[email protected]

Please do not include ngs in your x-post which are not related to the
topic of the question.

 

[peruser]

microsoft.public.dotnet.framework.adonet
microsoft.public.dotnet.framework.aspnet
microsoft.public.dotnet.framework.wmi
microsoft.public.dotnet.general
microsoft.public.dotnet.languages.vb

Actually, this is a fairly responsible group of groups for a novice dotnet'r
to query (with the exception of the adonet...). And you got a 'general'
answer. Using the Web Matrix supplied Matrix ClassBrowser (free Web Matrix
download from Microsoft!) it took more time for the ClassBrowser to load
than to find the answer to this question.

However, a "way to get the exact CPU Usage" is excluded by the Heisenberg
uncertainty principle (http://www.aip.org/history/heisenberg/p01.htm)! Do
not despair... what you can get is:

AverageBase
AverageCount64
AverageTimer32
CounterDelta32
CounterDelta64
CounterMultiBase
CounterMultiTimer
CounterMultiTimer100Ns
CounterMultiTimer100NsInverse
CounterMultiTimerInverse
CounterTimer
CounterTimerInverse
CountPerTimeInterval32
CountPerTimeInterval64
ElapsedTime
NumberOfItems32
NumberOfItems64
NumberOfItemsHEX32
NumberOfItemsHEX64
RateOfCountsPerSecond32
RateOfCountsPerSecond64
RawBase
RawFraction
SampleBase
SampleCounter
SampleFraction
Timer100Ns
Timer100NsInverse

It's all explained at
http://msdn.microsoft.com/library/d...emDiagnosticsPerformanceCounterClassTopic.asp

 

[Fergus Cooney]

Hi Per,

|| However, a "way to get the exact CPU Usage" is excluded
|| by the Heisenberg uncertainty principle

Lol.
If ever there's a way round that there'll always be the Windows OS
uncertainty principle.

|| AverageBase
|| AverageCount64
||
|| Timer100Ns
|| Timer100NsInverse

These are all PerformanceCounter data types.

If you have Server Explorer in your VS, you can get a list of the actual
counters by opening this window, and expanding the nodes for Servers and your
machine.

There is also a Management Console application, Perfmon.exe, with which
you can examine the available counters.

Regards,
Fergus