/// <summary>
/// adds a new performance counter instance
/// </summary>
/// <param name="key">Id to identify this entry by</param>
/// <param name="category"></param>
/// <param name="counterName"></param>
/// <param name="instanceName"></param>
/// <param name="readOnly"></param>
/// <param name="machineName"></param>
public PerformanceCounterItem Add(string key, string category, string counterName,
string instanceName = null, bool readOnly = true,
string machineName = null)
{
PerformanceCounter perfCounter;
if (instanceName != null)
{
perfCounter = new PerformanceCounter(category, counterName, instanceName, readOnly);
}
else
{
perfCounter = new PerformanceCounter(category, counterName, readOnly);
}
if (machineName != null)
{
perfCounter.MachineName = machineName;
}
if (string.IsNullOrEmpty(machineName) && !string.IsNullOrEmpty(MachineName))
{
perfCounter.MachineName = MachineName;
}
var item = new PerformanceCounterItem(key, perfCounter)
{
Description = perfCounter.CounterHelp
};
PerfCounterItems.Add(key, item);
return(item);
}
/// <summary>
/// Summarizes a number of entries that start with a given string
/// and adds a new item with the summarized value. The detail
/// values are removed from the collection optionally
///
/// Call this method after a perf run has completed
/// </summary>
public PerformanceCounterItem SummarizeCounters(string startsWith, string newId, bool removeItems = false)
{
decimal summaryValue = PerfCounterItems.Where(item => item.Value.Id.StartsWith(startsWith)).Sum(itm => itm.Value.LastValue);
var summarizedItem = new PerformanceCounterItem(newId, null)
{
LastValue = summaryValue
};
PerfCounterItems.Add(newId, summarizedItem);
if (removeItems)
{
var netIds = PerfCounterItems.Where(item => item.Value.Id.StartsWith(startsWith)).ToList();
for (int i = 0; i < netIds.Count; i++)
{
var id = netIds[i].Key;
PerfCounterItems.Remove(id);
}
}
return(summarizedItem);
}
public PerformanceCounterItem Add(string key, PerformanceCounterItem item)
{
item.Id = key;
PerfCounterItems.Add(key, item);
return(item);
}