performancecounter

WMI Performance counter Query issues

Hello Is there a way to query via WMI in C# like you can do with the System.Diagnostics.PerformanceCounter Class? simply put how can i pass it a string like "\localhost\Processor(0)\% Processor Time" and it would build the correct WMI query for me? Reason being is i have this huge list of counters in a flat file from a legacy program and...

Getting WMI to read processor load faster.

Hi. I have a C# application, where I have to get the processor load. According to the accepted answer for this question, my options are to either use performance counters from either WMI or the System.Diagnostics namespace. I have a problem with the System.Diagnostics performance counter (as documented here), so my only option is to use...

What do ASP.NET performance counters mean?

I'm trying to get a better handle on how threads work in ASP.NET, so I have a test site with a few pages, and I have a test WinForms client that creates 40 roughly concurrent requests to the test site. The requests take about 5-10 seconds to complete--they call a web service on another server. When I run the test client, I can use Fiddle...

Performance Counters

Hi, using System.Diagnostics.PerformanceCounter, I want to write results after every 'x' minutes. Is there any function supported for this or will I have to write some kind of event that gets invoked after every 'x' minutes? Thanks ...

How to programatically log PerformanceCounter

I understand that using Perfmon.msc you can create a custom performance counter and by using counter log, you can write the counter value to a text file. I also understand I can also use this programatically by creating a performance counter by using System.Diagnostics.PerformanceCounter, and get the counter value using NextValue() meth...

Can Performance Counters track time taken along with a string idenitifer?

I need to record the time taken by a task and it's been sugguested I use windows performance counters. I need to record the time taken to solve a given MathProblem. The Solve methods first line will start the StopWatch and the last line will Stop it. When I record the time taken to solve the problem I need to record the time along with...

How to map Win32 types to C# types when using P/Invoke?

I am trying to do something like this in C#. I found out how to call Win32 methods from C# using P/Invoke from this link. However I met some difficulties in implementing P/Invoke. For example, one of the methods that I would like to access is PdhOpenQuery, signature: PDH_STATUS PdhOpenQuery( __in LPCTSTR szDataSource, __in DWO...

Creating PerformanceCounterCategory in Powershell

Hello, I'm trying to run the following script in powershell: $counters = @() $counters = $counters + [Diagnostics.CounterCreationData]::("Hit counter", "Number of total hits", [Diagnostics.PerformanceCounterType]::NumberOfItem32); $counters = $counters + [Diagnostics.CounterCreationData]::("Hits per second", "Number of average hits pe...

PerformanceCounterCategory crashing the CLR

I have an unmanaged application that uses a managed library. One of the calls the managed component makes is to the PerformanceCounterCategory class. It looks like every time any methods are accessed (for example, PerformanceCounterCategory.Exists(String)), the CLR crashes pretty hard - exceptions are not catchable, and even the debugger...

With Process PerformanceCounters how do I know what process an instance is associated with?

When querying instances for the the "Process" performance counter category there might be multiple instances of of a process with the same name. For example this code: var cat = new PerformanceCounterCategory("Process"); var names = cat.GetInstanceNames(); foreach (var name in names) Console.WriteLine(name); Might print these r...

Understanding Memory Performance Counters

[Update - Sep 30, 2010] Since I studied a lot on this & related topics, I'll write whatever tips I gathered out of my experiences and suggestions provided in answers over here- 1) Use memory profiler (try CLR Profiler, to start with) and find the routines which consume max mem and fine tune them, like reuse big arrays, try to keep refe...

What are performance counters?

What exactly are performance counters and how do they work? Are they specific to Windows or they are an operating system level concept and available on Linux etc as well? How can I use them in my .NET application to measure execution times of various parts of my application? I googled but surprisingly didn't find any great references....

Measuring Application Performance

Hello All, I was wondering if there is a tool to keep track of application performance. What I have in mind is a tool that will listen for updates and register performance metrics published by an application. i.e. time to serve a request, time a certain operation took to finish. And this tool would then aggregate the data and measure per...

Monitoring batch requests per second on SQL Server through WMI

I need to programmatically (.NET 3.5, C#) monitor a SQL Server 2008 machine through WMI. I want to measure the number of batch requests per second that the server is receiving; this is what the Windows 7 Performance Monitor tool will show you under the SQL Server:SQL Statistics category, Batch Requests/sec counter. If I monitor the serve...

I cant get physical Memorys total value on a network computer

I am using performance counters to get values on LAN like this: PerformanceCounter available = new PerformanceCounter("Memory", "Available MBytes", "", ipAddress); but I cant get the total RAM size, I need usable persentage like %75 etc... are there any way to do? ...

problem on getting performancecounters from server computers

I am accesing to all off the computers on my lan and geting performance counters, but some of server computers doesnt give me true values they returns 0. is there any setting for this? note: firewall status is close for servers. here is a code sniplet from my application: PerformanceCounterCategory pcc = new PerformanceCounterCategory...

Unable to capture Performance Counters for an Azure Web Role

Hi, I am trying to capture the following PerformanceCounters on the Azure WebRole: private string[] perfCounters = { @"\Processor(_Total)\% Processor Time", @"\ASP.NET Applications(__Total__)\Requests/Sec", @"\Memory\Available Bytes", @"\...

Performance Counter - Rate per minute type?

I have a service that processes relatively "expensive" requests. The average request rate is expected to be around 5-10 per minute. I would like to be able to monitor this rate with a custom performance counter, but all the available counter types seem to be geared toward much more frequently occurring events. What would be the best wa...

Simplest Possible Performance Counter Example

What is the smallest amount of C# code to get a performance counter up and running? I simply want to measure the number of CPU cycles and/or time between two points in my code. I've skimmed through all the waffle on the web but it seems like WAY more code than is necessary for such a trivial task. I just want to get a quick measuremen...

C# definition problem

I have defined a performance counter as: PerformanceCounterCategory pcc = new PerformanceCounterCategory("Network Interface", ipAddress); string instance = pcc.GetInstanceNames()[1]; //first card PerformanceCounter bandwidthCounter = new PerformanceCounter("Network Interface", "Current Bandwidth", instance, ipAddress); in my code, b...