how to detect cpuusage and ram usage of a remote host using c#??
You could use the C# PerformanceCounter class to get this done. It's relatively simple to create a read-only counter:
PerformanceCounter cpuCounter = new PerformanceCounter(category, counter, instance, machine)
The documentation is available here: http://msdn.microsoft.com/en-us/library/9ffskxdc(v=VS.90).aspx
I'm not 100% sure that these are the exact values you want, but these may work:
CPU:
category = Processor
counter = % Processor Time
instance = _Total
RAM:
category = Memory
counter = Available MBytes
instance = (use String.Empty)
Performance Counters can be very tricky if you want your app to work on all modern MS OSs. Things get even more complicated if you want your app to run as regular (non-admin) user.
But that should get you started.
-- Dan
Related
Good afternoon.
In Windows, I use the following performance counter:
<Counter>\APP_POOL_WAS(DefaultAppPool)\Current Application Pool Uptime</Counter>
Then he created a special group of data collectors and added the specified performance counter to it (he also added a number of counters there).
In, PowerShell checked performance counter data collection using the following command (under the administrator):
Get-Counter -Counter "\\MachineName\APP_POOL_WAS(DefaultAppPool)\Current Application Pool Uptime" -SampleInterval 2 -MaxSamples 3
The team gave the following correct results:
For, use the following code (Net Framework 4.8) to retrieve performance counter data:
var performanceCounter = new PerformanceCounter(categoryName: "APP_POOL_WAS",
instanceName: "DefaultAppPool",
counterName: "Current Application Pool Uptime",
machineName: "khubetsov-pc");
Console.WriteLine($"{nameof(performanceCounter.CounterName)}:{performanceCounter.CounterName}");
Console.WriteLine($"{nameof(performanceCounter.CategoryName)}:{performanceCounter.CategoryName}");
Console.WriteLine($"{nameof(performanceCounter.InstanceName)}:{performanceCounter.InstanceName}");
Console.WriteLine($"{nameof(performanceCounter.MachineName)}:{performanceCounter.MachineName}");
Console.WriteLine($"{nameof(performanceCounter.CounterType)}:{performanceCounter.CounterType}");
for (var i = 1; i <= 10; i++)
{
Console.WriteLine($"{nameof(performanceCounter.NextValue)}{i}:{performanceCounter.NextValue()}");
Thread.Sleep(1500);
}
Here are the results of the program code execution:
As you can see, for some reason I always get 0 as a performance counter value.
Other counters (for example,\Processor (_ Total)% Idle Time or \APP _ POOL _ WAS (DefaultAppPool )\Current Application Pool State) provide the correct data.
Questions:
How do I correct this situation, that is, to use the PerformanceCounter class to get the correct value for the specified performance counter.
Maybe you need to make some changes to the settings of the meter itself?
I am currently having two PerformanceCounters that are creating issues when my Windows Forms application is to be started.
The PerformanceCounters are created in the designer class of a UserControl that is initiated when the application starts. The counters, called performanceCounterMemory and performanceCounterProTime, are created to be able to give the user a real time feedback of the currently used RAM memory and process time (percentage). They are created with the following lines in the designer class
this.performanceCounterMemory = new System.Diagnostics.PerformanceCounter();
this.performanceCounterProTime = new System.Diagnostics.PerformanceCounter();
((System.ComponentModel.ISupportInitialize)(this.performanceCounterMemory)).BeginInit();
((System.ComponentModel.ISupportInitialize)(this.performanceCounterProTime)).BeginInit();
this.performanceCounterMemory.CategoryName = "Memory";
this.performanceCounterMemory.CounterName = "% used dedicated byte";
this.performanceCounterProTime.CategoryName = "Processor";
this.performanceCounterProTime.CounterName = "% Processor Time";
this.performanceCounterProTime.InstanceName = "_Total";
((System.ComponentModel.ISupportInitialize)(this.performanceCounterMemory)).EndInit();
((System.ComponentModel.ISupportInitialize)(this.performanceCounterProTime)).EndInit();
For reasons unknown the calls to the last two lines, the EndInit() calls, for both counters are really slow (10+ seconds) making the application very slow to start.
Why is this? What is the purpose of the EndInit calls and is it possible to make it faster?
To be able to use the counters the following two references are added by the lines
using System.Management.Instrumentation;
using System.Management;
The machine processor is: Intel(R) Core(TM) i7-3770 CPU # 3.40GHz
long memory = GC.GetTotalMemory(true);
You can use the following function (the true parameter tells GC to build first)
This is for RAM, I don't really understand, maybe it will help)
I want to get my application pool's memory usage using Process class. This is my code so far:
ServerManager serverManager = new ServerManager();
ApplicationPoolCollection applicationPoolCollection = serverManager.ApplicationPools;
Process process = Process.GetProcessById(applicationPoolCollection.Where(p => p.Name == "mywebsite.com").First().WorkerProcesses[0].ProcessId);
I can get Process class but how do I know what is the amount of RAM it is using currently? I do see properties like PagedMemorySize64 and NonpagedSystemMemorySize64. Which one would give me the correct RAM that it is occupying at the moment?
I cannot use PerformanceCounter like so:
PerformanceCounter performanceCounter = new PerformanceCounter();
performanceCounter.CategoryName = "Process";
performanceCounter.CounterName = "Working Set";
performanceCounter.InstanceName = process.ProcessName;
Console.WriteLine(((uint)performanceCounter.NextValue() / 1024).ToString("N0"));
The reason being ProcessName would return w3p and therefore PerformanceCounter would write the total IIS RAM usage in Console which is not what I want.
I just need the application pool's RAM usage. Therefore I think my answer lies in Process class and not PerformanceCounter
Any help is appreciated.
If you need simply amount of ram visible to the process, which means amount of ram assigned to the process, but not necessary that every single bit of it is actually used by the process, you can use: WorkingSet. (Choose appropriate version for your .net)
Just invite your attention on the fact, that there is much more into process memory diagnostics, in case you might be concerned about allocated Virtual Memory, Commited Memory, Mapped Files and whatnot.
I stuck with this problem:
I want to calculate what percentage of processor use a specific application , in this case that features 29 chrome instantiations . I am interested in how the processor consumes a total of 29 instantiations of chrome.The code I tried it:
private float GetCpuUsage(string ProcessName)
{
float cpuUsage = 0;
try
{
var ProcName = Process.GetProcessesByName(ProcessName);
var instances = new PerformanceCounter[ProcName.Length];
for (int i = 0; i < instances.Length; i++)
{
using (var TotalCpuUsage = new PerformanceCounter("Process", "% Processor Time", ProcName[i].ProcessName, true))
{
TotalCpuUsage.NextValue();
Thread.Sleep(1000); //for better aproximation cpu
double processNext = Math.Round((double)(TotalCpuUsage.NextValue() / Environment.ProcessorCount), 2);
Console.WriteLine("Processor Cpu:{0}, PidProcess:{1}", processNext, ProcName[i].Id);
cpuUsage += (float)processNext;
}
}
Console.WriteLine("Processor TotalCpu:{0}", cpuUsage);
return cpuUsage;
}
catch (Exception ex)
{
Message.Show(ex.Message + "\r\n" + ex.StackTrace);
return cpuUsage;
}
}
And I have these strange results:
Processor Cpu:6.51, PidProcess:18496
Processor Cpu:3.55, PidProcess:22056
Processor Cpu:20.54, PidProcess:16920
Processor Cpu:0, PidProcess:19420
Processor Cpu:0, PidProcess:7644
Processor Cpu:0, PidProcess:22500
Processor Cpu:14.07, PidProcess:19644
Processor Cpu:0, PidProcess:22004
Processor Cpu:3.55, PidProcess:23772
Processor Cpu:0, PidProcess:7948
Processor Cpu:6.91, PidProcess:22980
Processor Cpu:14.19, PidProcess:19464
Processor Cpu:0, PidProcess:18428
Processor Cpu:16, PidProcess:19408
Processor Cpu:0, PidProcess:20340
Processor Cpu:20.73, PidProcess:16660
Processor Cpu:9.37, PidProcess:7784
Processor Cpu:7.16, PidProcess:23984
Processor Cpu:0, PidProcess:8156
Processor Cpu:17.91, PidProcess:13272
Processor Cpu:10.1, PidProcess:20228
Processor Cpu:13.35, PidProcess:6568
Processor Cpu:3.55, PidProcess:6452
Processor Cpu:0, PidProcess:11668
Processor Cpu:0, PidProcess:16780
Processor Cpu:7.23, PidProcess:7036
Processor Cpu:0, PidProcess:19712
Processor Cpu:13.7, PidProcess:20316
Processor Cpu:3.45, PidProcess:20296
Processor TotalCpu:191.87
In what way I could tackle this problem ?? What to do to get some real results
I think the issue here may be that you are not taking into account that your system has multiple cores. You will need to divide the percentages by the number of cores available on the system. Take a look at the link below.
http://www.allenconway.net/2013/07/get-cpu-usage-across-all-cores-in-c.html
I know this is a slightly old question, but I'd just like to add that there's a fundamental flaw in this approach.
The CPU usage is calculated using a time slice. In the case of the code above, it's calculated over the period of a second (same as Task Manager uses for example, so nothing wrong there).
However, you're creating a PerformanceCounter instance per process and you're pretty much only using a single instance at a time.
In real terms what this means is... you query process (chrome) at 00:00 (mm:ss) and again at 00:01, then you query (chrome#1) at 00:01 and again at 00:02, (chrome#2) at 00:02 and again at 00:03 ... etc
So it is entirely possible that when you queried (chrome) it was using 100% CPU, but a second later when you query (chrome#1) the former is now using 0% CPU and the latter is now using 100%, so when you add them up you get 200% CPU usage.
You need to query all processes at the same time to get an accurate representation.
I'm currently doing this:
PerformanceCounter cpuUsage = new PerformanceCounter("Processor", "% Processor Time", "_Total");
cpuUsage.NextValue();
System.Threading.Thread.Sleep(1000);
RV = cpuUsage.NextValue();
I call the function periodically to get CPU usage. When I monitor the system in TaskManager, the CPU usage reported by PerformanceCounter is consistently 15-20% higher than what TaskManager reports (30% in TaskManager = 50% from PerformanceCounter).
Maybe there's documentation that I overlooked, but does anyone have an explanation? Maybe the CPU usage at the instant it checks is higher and task manager reports an average?
new PerformanceCounter("Processor", ...);
You are using the wrong counter if you insist on seeing an exact match with Task Manager or Perfmon. Use "Processor Information" instead of "Processor". The reason these counters show different values is addressed pretty well in this blog post. Which counter is "right" is a question I wouldn't want to touch with a ten-foot pole :)
Did not have luck with accepted answer, so adding my comment as an answer to hopefully help people find this through online search a little better.
var counter = new PerformanceCounter("Processor Information", "% Processor Utility", "_Total");