src/Tizen.NUI.XamlBuild/src/public/XamlBuild/PerformanceProvider.cs

   1 using System;
   2 using System.Collections.Generic;
   3 using System.Diagnostics;
   4 using System.Linq;
   5 using System.Runtime.CompilerServices;
   6 using Tizen.NUI.Binding;
   7 using Tizen.NUI.Binding.Internals;
   8
   9 namespace Tizen.NUI.Xaml.Build.Tasks
  10 {
  11     [Preserve(AllMembers = true)]
  12     internal class PerformanceProvider : IPerformanceProvider
  13     {
  14         internal class Statistic
  15         {
  16             public readonly List<Tuple<string, long>> StartTimes = new List<Tuple<string, long>>();
  17             public int CallCount;
  18             public long TotalTime;
  19             public bool IsDetail;
  20         }
  21
  22         readonly Dictionary<string, Statistic> _Statistics = new Dictionary<string, Statistic>();
  23
  24         public Dictionary<string, Statistic> Statistics {
  25             get { return _Statistics; }
  26         }
  27
  28         public void Clear()
  29         {
  30             Statistics.Clear();
  31         }
  32
  33         public void Start(string reference, string tag = null, [CallerFilePath] string path = null, [CallerMemberName] string member = null)
  34         {
  35             string id = GetId(tag, path, member);
  36
  37             Statistic stats = GetStat(id);
  38
  39             if (tag != null)
  40                 stats.IsDetail = true;
  41
  42             stats.CallCount++;
  43             stats.StartTimes.Add(new Tuple<string, long>(reference, Stopwatch.GetTimestamp()));
  44         }
  45
  46         public void Stop(string reference, string tag = null, [CallerFilePath] string path = null, [CallerMemberName] string member = null)
  47         {
  48             string id = GetId(tag, path, member);
  49             long stop = Stopwatch.GetTimestamp();
  50
  51             Statistic stats = GetStat(id);
  52
  53             if (!stats.StartTimes.Any())
  54                 return;
  55
  56             long start = stats.StartTimes.Single(s => s.Item1 == reference).Item2;
  57             stats.TotalTime += stop - start;
  58         }
  59
  60         public IEnumerable<string> GetStats()
  61         {
  62             yield return "ID                                                                                 | Call Count | Total Time | Avg Time";
  63             foreach (KeyValuePair<string, Statistic> kvp in Statistics.OrderBy(kvp => kvp.Key)) {
  64                 string key = ShortenPath(kvp.Key);
  65                 double total = TimeSpan.FromTicks(kvp.Value.TotalTime).TotalMilliseconds;
  66                 double avg = total / kvp.Value.CallCount;
  67                 yield return string.Format("{0,-80} | {1,-10} | {2,-10}ms | {3,-8}ms", key, kvp.Value.CallCount, total, avg);
  68             }
  69         }
  70
  71         static string ShortenPath(string path)
  72         {
  73             int index = path.IndexOf("Tizen.NUI.Xaml.");
  74             if (index > -1)
  75                 path = path.Substring(index + 14);
  76
  77             return path;
  78         }
  79
  80         static string GetId(string tag, string path, string member)
  81         {
  82             return string.Format("{0}:{1}{2}", path, member, (tag != null ? "-" + tag : string.Empty));
  83         }
  84
  85         Statistic GetStat(string id)
  86         {
  87             Statistic stats;
  88             if (!Statistics.TryGetValue(id, out stats)) {
  89                 Statistics[id] = stats = new Statistic();
  90             }
  91             return stats;
  92         }
  93     }
  94 }