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using System;
using System.Collections.Concurrent;
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;
using System.Text;
namespace ARMeilleure
{
public static class Statistics
{
private const int ReportMaxFunctions = 100;
#pragma warning disable CS0169
[ThreadStatic]
private static Stopwatch _executionTimer;
#pragma warning restore CS0169
private static ConcurrentDictionary<ulong, long> _ticksPerFunction;
static Statistics()
{
_ticksPerFunction = new ConcurrentDictionary<ulong, long>();
}
public static void InitializeTimer()
{
#if M_PROFILE
if (_executionTimer == null)
{
_executionTimer = new Stopwatch();
}
#endif
}
internal static void StartTimer()
{
#if M_PROFILE
_executionTimer.Restart();
#endif
}
internal static void StopTimer(ulong funcAddr)
{
#if M_PROFILE
_executionTimer.Stop();
long ticks = _executionTimer.ElapsedTicks;
_ticksPerFunction.AddOrUpdate(funcAddr, ticks, (key, oldTicks) => oldTicks + ticks);
#endif
}
internal static void ResumeTimer()
{
#if M_PROFILE
_executionTimer.Start();
#endif
}
internal static void PauseTimer()
{
#if M_PROFILE
_executionTimer.Stop();
#endif
}
public static string GetReport()
{
int count = 0;
StringBuilder sb = new StringBuilder();
sb.AppendLine(" Function address | Time");
sb.AppendLine("--------------------------");
KeyValuePair<ulong, long>[] funcTable = _ticksPerFunction.ToArray();
foreach (KeyValuePair<ulong, long> kv in funcTable.OrderByDescending(x => x.Value))
{
long timeInMs = (kv.Value * 1000) / Stopwatch.Frequency;
sb.AppendLine($" 0x{kv.Key:X16} | {timeInMs} ms");
if (count++ >= ReportMaxFunctions)
{
break;
}
}
return sb.ToString();
}
}
}
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