调用 UpdatePerformanceCounters 时:在此更新程序中,类别和实例计数器的所有计数器名称都是相同的 - 它们总是从 Enum 派生的。更新程序被传递一个“配置文件”,通常包含以下内容:
{saTrilogy.Core.Instrumentation.PerformanceCounterProfile}
_disposed: false
CategoryDescription: "Timed function for a Data Access process"
CategoryName: "saTrilogy<Core> DataAccess Span"
Duration: 405414
EndTicks: 212442328815
InstanceName: "saTrilogy.Core.DataAccess.ParameterCatalogue..ctor::[dbo].[sp_KernelProcedures]"
LogFormattedEntry: "{\"CategoryName\":\"saTrilogy<Core> DataAccess ...
StartTicks: 212441923401
请注意实例名称的“复杂性”。
VerifyCounterExistence 方法的 toUpdate.AddRange() 总是成功并产生“预期的”输出,因此 UpdatePerformanceCounters 方法继续到计数器的“成功”递增。
尽管有“捕获”,但它永远不会“失败”——除了在 PerfMon 中查看类别时,它没有显示任何实例,因此也没有显示实例计数器的任何“成功”更新。
我怀疑我的问题可能是我的实例名称被拒绝,无一例外,因为它的“复杂性” - 当我通过 PerfView 通过控制台测试器运行它时,它没有显示任何异常堆栈,并且与计数器更新相关的 ETW 事件是成功记录在进程外接收器中。此外,Windows 日志中没有任何条目。
这一切都是通过 VS2012 在具有 NET 4.5 的 Windows 2008R2 服务器上“本地”运行的。
有没有人知道我可以如何尝试这个 - 甚至测试“更新”是否被 PerfMon 接受?
public sealed class Performance {
private enum ProcessCounterNames {
[Description("Total Process Invocation Count")]
TotalProcessInvocationCount,
[Description("Average Process Invocation Rate per second")]
AverageProcessInvocationRate,
[Description("Average Duration per Process Invocation")]
AverageProcessInvocationDuration,
[Description("Average Time per Process Invocation - Base")]
AverageProcessTimeBase
}
private readonly static CounterCreationDataCollection ProcessCounterCollection = new CounterCreationDataCollection{
new CounterCreationData(
Enum<ProcessCounterNames>.GetName(ProcessCounterNames.TotalProcessInvocationCount),
Enum<ProcessCounterNames>.GetDescription(ProcessCounterNames.TotalProcessInvocationCount),
PerformanceCounterType.NumberOfItems32),
new CounterCreationData(
Enum<ProcessCounterNames>.GetName(ProcessCounterNames.AverageProcessInvocationRate),
Enum<ProcessCounterNames>.GetDescription(ProcessCounterNames.AverageProcessInvocationRate),
PerformanceCounterType.RateOfCountsPerSecond32),
new CounterCreationData(
Enum<ProcessCounterNames>.GetName(ProcessCounterNames.AverageProcessInvocationDuration),
Enum<ProcessCounterNames>.GetDescription(ProcessCounterNames.AverageProcessInvocationDuration),
PerformanceCounterType.AverageTimer32),
new CounterCreationData(
Enum<ProcessCounterNames>.GetName(ProcessCounterNames.AverageProcessTimeBase),
Enum<ProcessCounterNames>.GetDescription(ProcessCounterNames.AverageProcessTimeBase),
PerformanceCounterType.AverageBase),
};
private static bool VerifyCounterExistence(PerformanceCounterProfile profile, out List<PerformanceCounter> toUpdate) {
toUpdate = new List<PerformanceCounter>();
bool willUpdate = true;
try {
if (!PerformanceCounterCategory.Exists(profile.CategoryName)) {
PerformanceCounterCategory.Create(profile.CategoryName, profile.CategoryDescription, PerformanceCounterCategoryType.MultiInstance, ProcessCounterCollection);
}
toUpdate.AddRange(Enum<ProcessCounterNames>.GetNames().Select(counterName => new PerformanceCounter(profile.CategoryName, counterName, profile.InstanceName, false) { MachineName = "." }));
}
catch (Exception error) {
Kernel.Log.Trace(Reflector.ResolveCaller<Performance>(), EventSourceMethods.Kernel_Error, new PacketUpdater {
Message = StandardMessage.PerformanceCounterError,
Data = new Dictionary<string, object> { { "Instance", profile.LogFormattedEntry } },
Error = error
});
willUpdate = false;
}
return willUpdate;
}
public static void UpdatePerformanceCounters(PerformanceCounterProfile profile) {
List<PerformanceCounter> toUpdate;
if (profile.Duration <= 0 || !VerifyCounterExistence(profile, out toUpdate)) {
return;
}
foreach (PerformanceCounter counter in toUpdate) {
if (Equals(PerformanceCounterType.RateOfCountsPerSecond32, counter.CounterType)) {
counter.IncrementBy(profile.Duration);
}
else {
counter.Increment();
}
}
}
}
来自 MSDN .Net 4.5 PerformanceCounter.InstanceName 属性(http://msdn.microsoft.com/en-us/library/system.diagnostics.performancecounter.instancename.aspx)...
Note: Instance names must be shorter than 128 characters in length.
Note: Do not use the characters "(", ")", "#", "\", or "/" in the instance name. If any of these characters are used, the Performance Console (see Runtime Profiling) may not correctly display the instance values.
我上面使用的 79 个字符的实例名称满足这些条件,因此,除非“。”、“:”、“[”和“]”也被“保留”,否则名称似乎不会成为问题。我还尝试了实例名称的 64 个字符的子字符串 - 以防万一,以及一个普通的“测试”字符串都无济于事。
变化...
除了 Enum 和 ProcessCounterCollection 我已经用以下内容替换了类主体:
private static readonly Dictionary<string, List<PerformanceCounter>> definedInstanceCounters = new Dictionary<string, List<PerformanceCounter>>();
private static void UpdateDefinedInstanceCounterDictionary(string dictionaryKey, string categoryName, string instanceName = null) {
definedInstanceCounters.Add(
dictionaryKey,
!PerformanceCounterCategory.InstanceExists(instanceName ?? "Total", categoryName)
? Enum<ProcessCounterNames>.GetNames().Select(counterName => new PerformanceCounter(categoryName, counterName, instanceName ?? "Total", false) { RawValue = 0, MachineName = "." }).ToList()
: PerformanceCounterCategory.GetCategories().First(category => category.CategoryName == categoryName).GetCounters().Where(counter => counter.InstanceName == (instanceName ?? "Total")).ToList());
}
public static void InitialisationCategoryVerify(IReadOnlyCollection<PerformanceCounterProfile> etwProfiles){
foreach (PerformanceCounterProfile profile in etwProfiles){
if (!PerformanceCounterCategory.Exists(profile.CategoryName)){
PerformanceCounterCategory.Create(profile.CategoryName, profile.CategoryDescription, PerformanceCounterCategoryType.MultiInstance, ProcessCounterCollection);
}
UpdateDefinedInstanceCounterDictionary(profile.DictionaryKey, profile.CategoryName);
}
}
public static void UpdatePerformanceCounters(PerformanceCounterProfile profile) {
if (!definedInstanceCounters.ContainsKey(profile.DictionaryKey)) {
UpdateDefinedInstanceCounterDictionary(profile.DictionaryKey, profile.CategoryName, profile.InstanceName);
}
definedInstanceCounters[profile.DictionaryKey].ForEach(c => c.IncrementBy(c.CounterType == PerformanceCounterType.AverageTimer32 ? profile.Duration : 1));
definedInstanceCounters[profile.TotalInstanceKey].ForEach(c => c.IncrementBy(c.CounterType == PerformanceCounterType.AverageTimer32 ? profile.Duration : 1));
}
}
在 PerformanceCounter 配置文件中,我添加了:
internal string DictionaryKey {
get {
return String.Concat(CategoryName, " - ", InstanceName ?? "Total");
}
}
internal string TotalInstanceKey {
get {
return String.Concat(CategoryName, " - Total");
}
}
ETW EventSource 现在对“预定义”性能类别进行初始化,同时还创建一个名为“Total”的实例。
PerformanceCategoryProfile = Enum<EventSourceMethods>.GetValues().ToDictionary(esm => esm, esm => new PerformanceCounterProfile(String.Concat("saTrilogy<Core> ", Enum<EventSourceMethods>.GetName(esm).Replace("_", " ")), Enum<EventSourceMethods>.GetDescription(esm)));
Performance.InitialisationCategoryVerify(PerformanceCategoryProfile.Values.Where(v => !v.CategoryName.EndsWith("Trace")).ToArray());
正如预期的那样,这将创建所有类别,但在 PerfMon 中我仍然看不到任何实例 - 即使是“Total”实例和更新,显然也总是运行没有错误。
我不知道我还能“改变什么 - 可能“太接近”问题,并希望得到评论/更正。