/// <summary>
/// Resets the counter
/// </summary>
protected PerfCounterStats GetValuesAndReset()
{
PerfCounterStats pv = new PerfCounterStats
{
Id = this.Id,
Sum = Interlocked.Exchange(ref _sum, 0),
Count = Interlocked.Exchange(ref _count, 0),
Min = Interlocked.Exchange(ref _min, Int32.MaxValue),
Max = Interlocked.Exchange(ref _max, Int32.MinValue)
};
pv.Avg = pv.Count == 0 ? 0 : pv.Sum / pv.Count;
pv.StartTime = this._lastReset;
pv.EndTime = DateTime.Now;
var df = (pv.EndTime - pv.StartTime).TotalSeconds;
pv.Freq = pv.Count == 0 ? 0.0 : df / pv.Count;
return pv;
}
protected PerfCounterStats GetValues(bool reset)
{
PerfCounterStats pv = new PerfCounterStats
{
Id = this.Id,
Sum = Interlocked.Exchange(ref _sum, reset ? 0L : _sum),
Count = Interlocked.Exchange(ref _count, reset ? 0 : _count),
Min = Interlocked.Exchange(ref _min, reset ? Int32.MaxValue : _min),
Max = Interlocked.Exchange(ref _max, reset ? Int32.MinValue : _max),
StartTime = _lastReset,
EndTime = DateTime.Now
};
var dt = _data;
if (reset)
{
var c = MaxUpdates;
_lastReset = _lastUpdate = DateTime.Now;
dt = Interlocked.Exchange(ref _data, new ConcurrentCircularBuffer<int>(c));
}
int[] dd = dt.ToArray();
if (dd.Length > 0)
{
Array.Sort(dd);
pv.Median = dd[dd.Length / 2];
pv.Perc90 = dd[(int)((dd.Length - 1) * 0.90)];
pv.Perc95 = dd[(int)((dd.Length - 1) * 0.95)];
pv.Perc98 = dd[(int)((dd.Length - 1) * 0.98)];
}
if (pv.Count == 0)
{
pv.Min = 0;
pv.Max = 0;
pv.Freq = 0;
}
else
{
pv.Avg = (double) pv.Sum / pv.Count;
pv.Freq = (double)pv.Count / (pv.EndTime - pv.StartTime).TotalSeconds;
}
return pv;
}
public PerfCounterStats CalculateCurrentStats()
{
var pc = new PerfCounterStats();
pc.Id = this.Id;
pc.StartTime = this.FrameStart;
pc.EndTime = DateTime.Now;
pc.Count = Data.Count;
if (Data.Count == 0) return pc;
Data.Sort();
pc.Min = Data[0];
pc.Max = Data[Data.Count - 1];
pc.Median = GetPercentile(Data, 50);
pc.Perc95 = GetPercentile(Data, 95);
pc.Perc98 = GetPercentile(Data, 98);
pc.Perc90 = GetPercentile(Data, 90);
pc.Sum = Data.Sum();
return pc;
}
