public PerformanceCounterStructure CreateCounter(
string perfCounterName,
bool supportInstanceNames,
out bool usesInstanceNamePlaceholder,
out string error)
{
error = null;
try
{
return(PerformanceCounterUtility.ParsePerformanceCounter(
perfCounterName,
new string[] { },
new string[] { },
supportInstanceNames,
out usesInstanceNamePlaceholder));
}
catch (Exception e)
{
usesInstanceNamePlaceholder = false;
PerformanceCollectorEventSource.Log.CounterParsingFailedEvent(e.Message, perfCounterName);
error = e.Message;
return(null);
}
}
private PerformanceCounter CreateCounter(
string perfCounterName,
IEnumerable <string> win32Instances,
IEnumerable <string> clrInstances,
out bool usesInstanceNamePlaceholder,
out string error)
{
error = null;
try
{
return(PerformanceCounterUtility.ParsePerformanceCounter(
perfCounterName,
win32Instances,
clrInstances,
out usesInstanceNamePlaceholder));
}
catch (Exception e)
{
usesInstanceNamePlaceholder = false;
PerformanceCollectorEventSource.Log.CounterParsingFailedEvent(e.Message, perfCounterName);
error = e.Message;
return(null);
}
}
public void ParsePerformanceCounterTest()
{
PerformanceCounter pc;
pc = PerformanceCounterUtility.ParsePerformanceCounter(@"\Processor(_Total)\% Processor Time", null, null);
Assert.AreEqual("Processor", pc.CategoryName);
Assert.AreEqual("% Processor Time", pc.CounterName);
Assert.AreEqual("_Total", pc.InstanceName);
pc = PerformanceCounterUtility.ParsePerformanceCounter(@"\Memory\Available Memory", null, null);
Assert.AreEqual("Memory", pc.CategoryName);
Assert.AreEqual("Available Memory", pc.CounterName);
Assert.AreEqual(string.Empty, pc.InstanceName);
}
public void ParsePerformanceCounterTest()
{
PerformanceCounterStructure pc;
bool usesInstanceNamePlaceholder;
pc = PerformanceCounterUtility.ParsePerformanceCounter(@"\Processor(_Total)\% Processor Time", null, null, true, out usesInstanceNamePlaceholder);
Assert.AreEqual("Processor", pc.CategoryName);
Assert.AreEqual("% Processor Time", pc.CounterName);
Assert.AreEqual("_Total", pc.InstanceName);
pc = PerformanceCounterUtility.ParsePerformanceCounter(@"\Memory\Available Memory", null, null, true, out usesInstanceNamePlaceholder);
Assert.AreEqual("Memory", pc.CategoryName);
Assert.AreEqual("Available Memory", pc.CounterName);
Assert.AreEqual(string.Empty, pc.InstanceName);
}
private void InitializePerformanceCollector()
{
foreach (var counter in QuickPulsePerfCounterList.CountersToCollect)
{
PerformanceCounter pc = null;
bool usesPlaceholder;
try
{
pc = PerformanceCounterUtility.ParsePerformanceCounter(counter.Item2, null, null, out usesPlaceholder);
}
catch (Exception e)
{
QuickPulseEventSource.Log.CounterParsingFailedEvent(e.Message, counter.Item2);
continue;
}
if (usesPlaceholder)
{
// Instance placeholders are not currently supported since they require refresh. Refresh is not implemented at this time.
continue;
}
try
{
this.performanceCollector.RegisterPerformanceCounter(
counter.Item2,
counter.Item1.ToString(),
pc.CategoryName,
pc.CounterName,
pc.InstanceName,
false,
true);
QuickPulseEventSource.Log.CounterRegisteredEvent(counter.Item2);
}
catch (Exception e)
{
QuickPulseEventSource.Log.CounterRegistrationFailedEvent(e.Message, counter.Item2);
}
}
}
public void PerformanceCounterUtilityPlaceholderExpansionTest()
{
PerformanceCounterUtility.InvalidatePlaceholderCache();
var win32Instances = PerformanceCounterUtility.GetWin32ProcessInstances();
var clrInstances = PerformanceCounterUtility.GetClrProcessInstances();
bool usesInstanceNamePlaceholder;
var pc = PerformanceCounterUtility.ParsePerformanceCounter(@"\Processor(??APP_WIN32_PROC??)\% Processor Time", win32Instances, clrInstances, out usesInstanceNamePlaceholder);
Assert.IsFalse(pc.InstanceName.Contains("?"));
pc = PerformanceCounterUtility.ParsePerformanceCounter(@"\Processor(??APP_CLR_PROC??)\% Processor Time", win32Instances, clrInstances, out usesInstanceNamePlaceholder);
Assert.IsFalse(pc.InstanceName.Contains("?"));
pc = PerformanceCounterUtility.ParsePerformanceCounter(@"\Processor(??APP_W3SVC_PROC??)\% Processor Time", win32Instances, clrInstances, out usesInstanceNamePlaceholder);
Assert.IsFalse(pc.InstanceName.Contains("?"));
pc = PerformanceCounterUtility.ParsePerformanceCounter(@"\ASP.NET Applications(??APP_W3SVC_PROC??)\Request Execution Time", win32Instances, clrInstances, out usesInstanceNamePlaceholder);
Assert.IsFalse(pc.InstanceName.Contains("?"));
pc = PerformanceCounterUtility.ParsePerformanceCounter(@"\Processor(??NON_EXISTENT??)\% Processor Time", win32Instances, clrInstances, out usesInstanceNamePlaceholder);
Assert.AreEqual("??NON_EXISTENT??", pc.InstanceName);
// validate placeholder cache state
var cache =
new PrivateType(typeof(PerformanceCounterUtility)).GetStaticField(
"PlaceholderCache",
BindingFlags.NonPublic) as ConcurrentDictionary <string, string>;
Assert.AreEqual(3, cache.Count);
Assert.IsTrue(cache.ContainsKey("APP_WIN32_PROC"));
Assert.IsTrue(cache.ContainsKey("APP_CLR_PROC"));
Assert.IsTrue(cache.ContainsKey("APP_W3SVC_PROC"));
PerformanceCounterUtility.InvalidatePlaceholderCache();
Assert.IsFalse(cache.Any());
}
