area-System.Diagnostics.PerformanceCounterbacklog-cleanup-candidatehelp wantedno-recent-activity
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描述
Description
I trying to get uptime for IIS AppPool, but code always returns zero. Windows system monitor shows real values:
Code:
PerformanceCounterCategory cat = new PerformanceCounterCategory("APP_POOL_WAS");
string inst = cat.GetInstanceNames().First(x => x.Contains("bp"));
PerformanceCounter pc = cat.GetCounters(inst).First(x => x.CounterName == "Current Application Pool Uptime");
pc.NextValue(); //zero
Thread.Sleep(1000); //wait as recommended in msdn
float val = pc.NextValue(); //zero too
Configuration
aspnet core 3.1 (net 5.0 - same behavior) windows 10 x64, self-hosted
Expected behavior
Like as, for example, "System - System Up Time" Perfomance counter:
PerformanceCounter _upTimeCounter = new PerformanceCounter("System", "System Up Time");
_upTimeCounter.NextValue(); //zero
TimeSpan uptimeCounterValue = TimeSpan.FromSeconds(_upTimeCounter.NextValue()); //real expected value
Extended information
All counters in category "APP_POOL_WAS" with type PerformanceCounterType.ElapsedTime returns zero.
All others returns real values
Maybe this is localization error, because in powershell we see localizaed names of counters
