private static WaterfallStats[] ComputeStats(WorkStats[,] stats, int totalWork)
{
var waterfallStats = new WaterfallStats[totalWork];
for (var workIndex = 0; workIndex < totalWork; workIndex++)
{
waterfallStats[workIndex] = new WaterfallStats(double.MaxValue);
}
for (var i = 0; i < Environment.ProcessorCount; i++)
{
for (var j = 0; j < totalWork; j++)
{
var countj = Interlocked.Read(ref stats[i, j].Count);
if (countj <= 0)
{
continue;
}
waterfallStats[j].Count += countj;
waterfallStats[j].TotalTimeInMs += Interlocked.Read(ref stats[i, j].TimeTicks);
waterfallStats[j].MinTimeMs = Math.Min(waterfallStats[j].MinTimeMs,
Interlocked.Read(ref stats[i, j].MinTimeTicks));
waterfallStats[j].MaxTimeMs = Math.Max(waterfallStats[j].MaxTimeMs,
Interlocked.Read(ref stats[i, j].MaxTimeTicks));
}
}
return(waterfallStats);
}
/// <summary>
/// Provides stats for a given work item.
/// </summary>
/// <param name="position">work identifier</param>
/// <returns>Performance Statistics</returns>
protected WaterfallStats WorkStatistics(int position)
{
#if WATERFALLSTATS_ON
var waterfallStats = new WaterfallStats(double.MaxValue);
var localStats = _stats;
for (var i = 0; i < Environment.ProcessorCount; i++)
{
var countj = Interlocked.Read(ref localStats[i, position].Count);
if (countj <= 0)
{
continue;
}
waterfallStats.Count += countj;
waterfallStats.TotalTimeInMs += Interlocked.Read(ref localStats[i, position].TimeTicks);
waterfallStats.MinTimeMs = Math.Min(waterfallStats.MinTimeMs,
Interlocked.Read(ref localStats[i, position].MinTimeTicks));
waterfallStats.MaxTimeMs = Math.Max(waterfallStats.MaxTimeMs,
Interlocked.Read(ref localStats[i, position].MaxTimeTicks));
}
return(waterfallStats);
#else
return(default(WaterfallStats));
#endif
}
