public DurationMeasurement(IoMeterBuffer parent, IoMetrics.MeterType type, long size)
{
Parent = parent;
_type = type;
Size = size;
_start = DateTime.UtcNow;
}
public DurationMeasurement(IoMeterBuffer parent, IoMetrics.MeterType type, long size, long fileSize, Action <MeterItem> onFileChange)
{
Parent = parent;
Type = type;
Size = size;
FileSize = fileSize;
Start = DateTime.UtcNow;
End = default(DateTime);
OnFileChange = onFileChange;
CompressedSize = 0;
Acceleration = 1;
}
internal void Mark(long size, DateTime start, DateTime end, IoMetrics.MeterType type)
{
var meterItem = new MeterItem
{
Start = start,
Size = size,
Type = type,
End = end
};
var pos = Interlocked.Increment(ref _bufferPos);
var adjustedTail = pos % _buffer.Length;
if (Interlocked.CompareExchange(ref _buffer[adjustedTail], meterItem, null) == null)
{
return;
}
var newSummary = new SummerizedItem
{
TotalTimeStart = meterItem.Start,
TotalTimeEnd = meterItem.End,
Count = 1,
MaxTime = meterItem.Duration,
MinTime = meterItem.Duration,
TotalTime = meterItem.Duration,
TotalSize = meterItem.Size,
Type = meterItem.Type
};
for (int i = 0; i < _buffer.Length; i++)
{
var oldVal = Interlocked.Exchange(ref _buffer[(adjustedTail + i) % _buffer.Length], null);
if (oldVal != null)
{
newSummary.TotalTimeStart = newSummary.TotalTimeStart > oldVal.Start ? oldVal.Start : newSummary.TotalTimeStart;
newSummary.TotalTimeEnd = newSummary.TotalTimeEnd > oldVal.End ? newSummary.TotalTimeEnd : oldVal.End;
newSummary.Count++;
newSummary.MaxTime = newSummary.MaxTime > oldVal.Duration ? newSummary.MaxTime : oldVal.Duration;
newSummary.MinTime = newSummary.MinTime > oldVal.Duration ? oldVal.Duration : newSummary.MinTime;
newSummary.TotalSize += oldVal.Size;
newSummary.TotalTime += oldVal.Duration;
}
}
var increment = Interlocked.Increment(ref _summerizedPos);
_summerizedBuffer[increment % _summerizedBuffer.Length] = newSummary;
}
