2010-07-20 3 views

답변

13

특히이 항목에 대한 정보가 많지 않으므로 찾을 수있는 가장 좋은 방법은 기존 원시 값을 유지 한 다음 범주를 삭제하고 다시 만든 후 다시 적용하는 것입니다. .

/// <summary> 
/// When deleting the Category, need to preserve the existing counter values 
/// </summary> 
static Dictionary<string, long> GetPreservedValues(string category, XmlNodeList nodes) 
{ 
    Dictionary<string, long> preservedValues = new Dictionary<string, long>(); 

    foreach (XmlNode counterNode in nodes) 
    { 
     string counterName = counterNode.Attributes["name"].Value; 

     if (PerformanceCounterCategory.CounterExists(counterName, category)) 
     { 
      PerformanceCounter performanceCounter = new PerformanceCounter(category, counterName, false); 
      preservedValues.Add(counterName, performanceCounter.RawValue); 

      Console.WriteLine("Preserving {0} with a RawValue of {1}", counterName, performanceCounter.RawValue); 
     } 
     else 
     { 
      Console.WriteLine("Unable to preserve {0} because it doesn't exist", counterName); 
     } 
    } 

    return preservedValues; 
} 

/// <summary> 
/// Restore preserved values after the category has been re-created 
/// </summary> 
static void SetPreservedValues(string category, Dictionary<string, long> preservedValues) 
{ 
    foreach (KeyValuePair<string, long> preservedValue in preservedValues) 
    { 
     PerformanceCounter performanceCounter = new PerformanceCounter(category, preservedValue.Key, false); 
     performanceCounter.RawValue = preservedValue.Value; 

     Console.WriteLine("Restoring {0} with a RawValue of {1}", preservedValue.Key, performanceCounter.RawValue); 
    } 
} 
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