{"id":107014,"date":"2026-09-18T18:56:38","date_gmt":"2026-09-18T10:56:38","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/107014.html"},"modified":"2026-09-18T18:56:38","modified_gmt":"2026-09-18T10:56:38","slug":"c-%e7%95%8c%e9%9d%a2%e5%8d%a1%e9%a1%bf%ef%bc%9a%e4%bb%8e%e5%ae%9a%e4%bd%8d%e5%88%b0%e6%a0%b9%e6%b2%bb","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/107014.html","title":{"rendered":"C# \u754c\u9762\u5361\u987f\uff1a\u4ece\u5b9a\u4f4d\u5230\u6839\u6cbb"},"content":{"rendered":"

\u4e00\u3001\u5148\u7edf\u4e00\u8ba4\u77e5：\u5361\u987f\u5230\u5e95\u662f\u4ec0\u4e48<\/h3>\n

Windows \u684c\u9762\u7a0b\u5e8f\u7684 UI \u6709\u4e00\u4e2a\u94c1\u5f8b：\u53ea\u6709\u4e00\u4e2a UI \u7ebf\u7a0b，\u5b83\u9760\u4e00\u4e2a\u6d88\u606f\u6cf5（Message Loop）\u6d3b\u7740\u3002\u9f20\u6807\u70b9\u51fb\u3001\u952e\u76d8\u8f93\u5165\u3001\u91cd\u7ed8\u8bf7\u6c42\u3001\u5b9a\u65f6\u5668\u3001Invoke \u56de\u8c03，\u5168\u90fd\u662f\u6392\u8fdb\u8fd9\u4e2a\u961f\u5217\u7684\u4e00\u6761\u6761\u6d88\u606f，UI \u7ebf\u7a0b\u4e00\u6761\u6761\u5904\u7406\u3002<\/p>\n

\u4e8e\u662f\u7ed3\u8bba\u975e\u5e38\u76f4\u63a5：<\/p>\n

UI \u7ebf\u7a0b\u4e0a\u4efb\u4f55\u4e00\u6b21\u6267\u884c\u8d85\u8fc7 ~100ms，\u7528\u6237\u5c31\u80fd\u660e\u786e\u611f\u89c9\u5230"\u5361"；\u8d85\u8fc7 50ms \u5c31\u5df2\u7ecf\u4e0d\u8ddf\u624b\u4e86\u3002<\/p>\n

\u6309 60fps \u7b97，\u4e00\u5e27\u53ea\u6709 16.7ms\u3002\u5982\u679c\u4f60\u8981\u7684\u662f"\u6d41\u7545\u52a8\u753b"，\u9884\u7b97\u5c31\u53ea\u6709 16ms\u3002<\/p>\n

\u5173\u952e\u533a\u5206：\u7a0b\u5e8f\u6162 \u2260 \u754c\u9762\u5361<\/h4>\n\n\n

\u73b0\u8c61<\/p>\n

\u672c\u8d28<\/p>\n<\/tr>\n

\n\n\n
\n

\u540e\u53f0\u8ba1\u7b97\u8dd1\u4e86 10 \u79d2，\u4f46\u754c\u9762\u80fd\u70b9\u80fd\u62d6<\/p>\n<\/td>\n

\n

\u7a0b\u5e8f\u6162，\u4e0d\u662f\u5361\u987f\u95ee\u9898\u200b<\/p>\n<\/td>\n<\/tr>\n

\n

\u540e\u53f0\u5f88\u5feb，\u4f46\u70b9\u4e00\u4e0b\u6309\u94ae\u754c\u9762\u5c31\u50f5\u4f4f<\/p>\n<\/td>\n

\n

UI \u7ebf\u7a0b\u88ab\u5360，\u8fd9\u662f\u5361\u987f\u200b<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u5f88\u591a\u4eba\u82b1\u5927\u529b\u6c14\u4f18\u5316\u7b97\u6cd5，\u754c\u9762\u7167\u6837\u5361\u2014\u2014\u56e0\u4e3a\u74f6\u9888\u6839\u672c\u4e0d\u5728\u7b97\u6cd5，\u800c\u5728"\u8fd9\u6bb5\u6d3b\u5e72\u5728\u4e86 UI \u7ebf\u7a0b\u4e0a"\u3002\u5148\u5206\u6e05\u8fd9\u4e2a，\u80fd\u7701\u6389\u4e00\u534a\u65e0\u7528\u529f\u3002<\/p>\n

\n

\u4e8c\u3001\u5361\u987f\u7684\u56db\u79cd\u5178\u578b\u6210\u56e0<\/h3>\n

1. \u771f\u00b7\u963b\u585e \u2014\u2014 \u91cd\u6d3b\u5e72\u5728\u4e86 UI \u7ebf\u7a0b\u4e0a<\/h4>\n

\/\/ \u274c \u5178\u578b：\u6309\u94ae\u4e8b\u4ef6\u91cc\u540c\u6b65\u5e72\u91cd\u6d3b
\nprivate void btnQuery_Click(object sender, EventArgs e)
\n{
\n var dt = dbHelper.Query("SELECT * FROM History WHERE …"); \/\/ \u540c\u6b65\u6570\u636e\u5e93\u67e5\u8be2，3\u79d2
\n dataGridView1.DataSource = dt;
\n File.WriteAllText(logPath, BuildBigReport()); \/\/ \u540c\u6b65\u5199\u5927\u6587\u4ef6
\n}<\/p>\n

\u5e38\u89c1\u5143\u51f6：\u6570\u636e\u5e93\u67e5\u8be2\u3001\u6587\u4ef6\u8bfb\u5199\u3001HTTP\/\u4e32\u53e3\/PLC \u901a\u8baf\u3001\u5927\u91cf\u5e8f\u5217\u5316\u53cd\u5e8f\u5217\u5316\u3001\u52a0\u5bc6\u89e3\u5bc6\u3001\u56fe\u50cf\u5904\u7406\u3001Excel \u5bfc\u51fa\u3001\u590d\u6742 LINQ to Objects \u904d\u5386\u3001\u5b57\u7b26\u4e32\u5927\u91cf\u62fc\u63a5\u3002<\/p>\n

2. \u4f2a\u00b7\u963b\u585e \u2014\u2014 \u6b7b\u9501（\u6700\u5bb9\u6613\u8e29，\u4e14\u6700\u9690\u853d）<\/h4>\n

\/\/ \u274c \u7528\u4e86 async，\u5374\u5728 UI \u7ebf\u7a0b\u540c\u6b65\u7b49\u5f85 \u2192 \u76f4\u63a5\u6b7b\u9501
\nprivate void btnLoad_Click(object sender, EventArgs e)
\n{
\n var data = LoadAsync().Result; \/\/ \u6b7b\u7b49
\n \/\/ \u6216 LoadAsync().Wait();
\n \/\/ \u6216 LoadAsync().GetAwaiter().GetResult();
\n}<\/p>\n

\u539f\u7406：LoadAsync() \u5185\u90e8\u7684 await \u5b8c\u6210\u540e，\u9700\u8981\u5207\u56de UI \u7ebf\u7a0b\u7684 SynchronizationContext \u624d\u80fd\u7ee7\u7eed\u6267\u884c；\u4f46 UI \u7ebf\u7a0b\u6b63\u5361\u5728 .Result \u4e0a\u7b49\u5b83 \u2014\u2014 \u4e92\u76f8\u7b49\u5f85，\u6c38\u4e45\u6b7b\u9501\u3002\u754c\u9762\u8868\u73b0\u4e3a\u5f7b\u5e95\u5047\u6b7b，\u65e0\u4efb\u4f55\u5f02\u5e38\u629b\u51fa，\u6781\u96be\u5bdf\u89c9\u3002<\/p>\n

3. \u6d2a\u6c34 \u2014\u2014 \u9ad8\u9891\u5237\u65b0 \/ \u4e8b\u4ef6\u98ce\u66b4<\/h4>\n

\u5de5\u63a7\u573a\u666f\u7684\u5934\u53f7\u6740\u624b\u3002PLC \u6bcf\u79d2\u63a8\u6765\u51e0\u5343\u4e2a\u6570\u636e\u70b9，\u4f60\u5728\u56de\u8c03\u91cc\u4e00\u4e2a\u70b9\u4e00\u6b21 Invoke \u66f4\u65b0\u63a7\u4ef6：<\/p>\n

\/\/ \u274c \u6bcf\u4e2a\u6570\u636e\u70b9\u90fd\u8de8\u7ebf\u7a0b\u5237\u65b0\u4e00\u6b21 UI
\nvoid OnPlcData(Sample s)
\n{
\n this.Invoke(() => label1.Text = s.Value.ToString());
\n}<\/p>\n

\u6bcf\u79d2\u51e0\u5343\u6b21 Invoke = \u51e0\u5343\u6761\u6d88\u606f\u6392\u8fdb UI \u961f\u5217，UI \u7ebf\u7a0b\u5149\u5904\u7406\u66f4\u65b0\u5c31\u7d2f\u6b7b，\u70b9\u51fb\u548c\u91cd\u7ed8\u5168\u88ab\u6324\u5230\u540e\u9762\u3002<\/p>\n

\u540c\u7c7b\u95ee\u9898：TextChanged\u3001MouseMove\u3001Scroll\u3001SelectionChanged\u3001Paint \u91cc\u505a\u91cd\u6d3b；ObservableCollection \u9010\u6761 Add \u89e6\u53d1\u9010\u6761\u901a\u77e5\u3002<\/p>\n

4. \u6e32\u67d3\u8d1f\u62c5 \u2014\u2014 \u5e03\u5c40\u3001\u7ed8\u5236\u3001GC<\/h4>\n
    \n
  • \u51e0\u767e\u4e2a\u63a7\u4ef6\u540c\u65f6 SuspendLayout \u7f3a\u5931\u5bfc\u81f4\u53cd\u590d\u5e03\u5c40<\/li>\n
  • OnPaint \u91cc\u505a\u4f4d\u56fe\u7f29\u653e\u3001\u6297\u952f\u9f7f\u91cd\u7ed8\u3001\u8bfb\u6587\u4ef6<\/li>\n
  • WPF \u5e03\u5c40\u6296\u52a8（Layout Thrashing）\u3001\u672a\u542f\u7528 UI \u865a\u62df\u5316<\/li>\n
  • \u5927\u5bf9\u8c61\u9891\u7e41\u5206\u914d\u5f15\u53d1 Gen2 GC，STW \u6682\u505c\u8868\u73b0\u4e3a"\u5468\u671f\u6027\u987f\u4e00\u4e0b"<\/li>\n<\/ul>\n
    \n

    \u4e09\u3001\u5148\u628a\u5361\u987f"\u6293\u73b0\u884c"（\u522b\u9760\u731c）<\/h3>\n

    3.1 UI \u5fc3\u8df3\u770b\u95e8\u72d7（\u6700\u5b9e\u7528，10 \u5206\u949f\u5c31\u80fd\u52a0\u4e0a）<\/h4>\n

    \u539f\u7406：UI \u7ebf\u7a0b\u653e\u4e00\u4e2a 50ms \u7684\u5b9a\u65f6\u5668，\u5982\u679c\u67d0\u6b21 Tick \u59d7\u59d7\u6765\u8fdf，\u8fdf\u5230\u591a\u4e45 = UI \u7ebf\u7a0b\u88ab\u963b\u585e\u4e86\u591a\u4e45\u3002\u8fd9\u662f\u552f\u4e00\u80fd\u76f4\u63a5\u91cf\u5316"\u5361\u4e86\u591a\u4e45"\u7684\u4f4e\u6210\u672c\u624b\u6bb5\u3002<\/p>\n

    WPF \u7248：<\/p>\n

    public static class UiWatchdog
    \n{
    \n public static void Start(int toleranceMs = 100, Action<long>? onStall = null)
    \n {
    \n var sw = Stopwatch.StartNew();
    \n long last = sw.ElapsedMilliseconds;
    \n var timer = new DispatcherTimer(DispatcherPriority.Normal)
    \n {
    \n Interval = TimeSpan.FromMilliseconds(50)
    \n };
    \n timer.Tick += (_, _) =>
    \n {
    \n long now = sw.ElapsedMilliseconds;
    \n long gap = now – last;
    \n last = now;
    \n if (gap > toleranceMs)
    \n {
    \n \/\/ gap \u5c31\u662f\u5b9e\u6d4b\u963b\u585e\u65f6\u957f
    \n Debug.WriteLine($"[UI STALL] {gap}ms @ {DateTime.Now:HH:mm:ss.fff}");
    \n onStall?.Invoke(gap);
    \n }
    \n };
    \n timer.Start();
    \n }
    \n}<\/p>\n

    WinForms \u7248（System.Windows.Forms.Timer \u540c\u6837\u662f\u6d88\u606f\u9a71\u52a8，\u6548\u679c\u4e00\u81f4）：<\/p>\n

    var sw = Stopwatch.StartNew();
    \nlong last = 0;
    \nvar t = new System.Windows.Forms.Timer { Interval = 50 };
    \nt.Tick += (_, _) =>
    \n{
    \n long now = sw.ElapsedMilliseconds;
    \n long gap = now – last;
    \n last = now;
    \n if (gap > 100) Debug.WriteLine($"[UI STALL] {gap}ms");
    \n};
    \nt.Start();<\/p>\n

    \u4e0a\u7ebf\u524d\u5173\u6389\u6216\u964d\u9891\u5373\u53ef\u3002\u6709\u4e86\u5b83，\u4f60\u5c31\u4ece"\u7528\u6237\u8bf4\u5361"\u53d8\u6210\u4e86"\u65e5\u5fd7\u663e\u793a 14:23:07 \u5361\u4e86 840ms"\u3002<\/p>\n

    3.2 \u4e13\u4e1a\u5de5\u5177（\u5b9a\u4f4d\u5230\u5177\u4f53\u65b9\u6cd5）<\/h4>\n\n\n

    \u5de5\u5177<\/p>\n

    \u7528\u9014<\/p>\n<\/tr>\n

    \n\n\n\n\n
    \n

    Visual Studio \u6027\u80fd\u63a2\u67e5\u5668（Alt+F2）<\/p>\n<\/td>\n

    		\n

    \u5185\u7f6e，\u770b CPU \u91c7\u6837\u3001\u70ed\u70b9\u65b9\u6cd5\u8c03\u7528\u6811<\/p>\n<\/td>\n<\/tr>\n

    \n

    dotTrace \/ ANTS Performance Profiler\u200b<\/p>\n<\/td>\n

    		\n

    \u5546\u4e1a，Timeline \u6a21\u5f0f\u80fd\u76f4\u63a5\u770b\u5230 UI \u7ebf\u7a0b\u54ea\u4e00\u6bb5\u88ab\u963b\u585e<\/p>\n<\/td>\n<\/tr>\n

    \n

    PerfView \/ ETW\u200b<\/p>\n<\/td>\n

    		\n

    \u514d\u8d39\u4e14\u6700\u5f3a，\u80fd\u770b GC \u6682\u505c\u3001\u7ebf\u7a0b\u7b49\u5f85\u3001\u78c1\u76d8 IO<\/p>\n<\/td>\n<\/tr>\n

    \n

    Windows \u6027\u80fd\u5206\u6790\u5668（WPA）\u200b<\/p>\n<\/td>\n

    		\n

    \u914d\u5408 ETW \u5206\u6790 UI \u5ef6\u8fdf（UI Delay \u5206\u6790）<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    \u5b9e\u64cd\u5efa\u8bae：\u5148\u7528\u770b\u95e8\u72d7\u786e\u8ba4"\u786e\u5b9e\u5361 + \u5361\u591a\u4e45"，\u518d\u7528 dotTrace Timeline \u6293\u4e00\u6bb5，\u76f4\u63a5\u770b UI \u7ebf\u7a0b\u4e0a\u90a3\u4e00\u5927\u6761\u5b9e\u5fc3\u5757\u662f\u4ec0\u4e48\u65b9\u6cd5\u2014\u201490% \u7684\u60c5\u51b5\u4e00\u773c\u5c31\u7834\u6848\u3002<\/p>\n

    3.3 \u571f\u529e\u6cd5\u4e5f\u6709\u6548<\/h4>\n

    \u5728\u53ef\u7591\u65b9\u6cd5\u524d\u540e\u6253 Stopwatch，\u6216\u57cb\u4e00\u4e2a\u5168\u5c40\u7684\u8017\u65f6\u65e5\u5fd7：<\/p>\n

    public static IDisposable Measure(string name)
    \n{
    \n var sw = Stopwatch.StartNew();
    \n return new Disposer(() => Debug.WriteLine($"{name}: {sw.ElapsedMilliseconds}ms"));
    \n}<\/p>\n

    \n

    \u56db\u3001\u9010\u4e2a\u51fb\u7834：\u4ece"\u80fd\u8dd1"\u5230"\u4e0d\u5361"<\/h3>\n

    4.1 \u628a\u91cd\u6d3b\u642c\u79bb UI \u7ebf\u7a0b（\u6b63\u786e\u59ff\u52bf）<\/h4>\n

    \/\/ \u2705 \u4e8b\u4ef6\u5904\u7406\u5668\u53ef\u4ee5 async void（\u8fd9\u662f\u552f\u4e00\u63a8\u8350\u7684 async void \u573a\u666f）
    \nprivate async void btnQuery_Click(object sender, EventArgs e)
    \n{
    \n btnQuery.Enabled = false;
    \n try
    \n {
    \n \/\/ Task.Run \u628a CPU \u5bc6\u96c6\u6d3b\u4e22\u7ebf\u7a0b\u6c60；IO \u5bc6\u96c6\u6d3b\u76f4\u63a5 await \u539f\u751f\u5f02\u6b65 API
    \n var dt = await Task.Run(() => dbHelper.Query(sql));
    \n dataGridView1.DataSource = dt; \/\/ await \u4e4b\u540e\u81ea\u52a8\u56de\u5230 UI \u7ebf\u7a0b
    \n }
    \n catch (Exception ex)
    \n {
    \n MessageBox.Show(ex.Message);
    \n }
    \n finally
    \n {
    \n btnQuery.Enabled = true;
    \n }
    \n}<\/p>\n

    \u8981\u70b9：<\/p>\n

      \n
    • IO \u5bc6\u96c6\u578b（\u6570\u636e\u5e93\u3001\u6587\u4ef6\u3001\u7f51\u7edc\u3001\u4e32\u53e3）\u4f18\u5148\u7528\u539f\u751f\u5f02\u6b65 API（ExecuteReaderAsync\u3001ReadAsync\u3001HttpClient \u7b49），\u4e0d\u8981\u50bb\u4e4e\u4e4e\u5168\u585e Task.Run\u2014\u2014\u90a3\u53ea\u662f\u6362\u4e2a\u7ebf\u7a0b\u963b\u585e，\u767d\u767d\u5360\u7ebf\u7a0b\u6c60\u3002<\/li>\n
    • CPU \u5bc6\u96c6\u578b（\u56fe\u50cf\u5904\u7406\u3001\u590d\u6742\u8ba1\u7b97\u3001\u5927\u62a5\u8868\u751f\u6210）\u624d\u7528 Task.Run\u3002<\/li>\n
    • async void \u53ea\u7528\u4e8e\u4e8b\u4ef6\u5904\u7406\u5668，\u5176\u4ed6\u4e00\u5f8b async Task\u3002<\/li>\n
    • \u4e00\u5b9a\u8981 try\/catch，\u5426\u5219\u5f02\u5e38\u4f1a\u88ab\u541e\u8fdb SynchronizationContext，\u8868\u73b0\u4e3a"\u7a0b\u5e8f\u83ab\u540d\u5176\u5999\u6ca1\u53cd\u5e94"\u3002<\/li>\n<\/ul>\n

      4.2 \u6d88\u706d\u6b7b\u9501：\u4e00\u8def async + ConfigureAwait(false)<\/h4>\n

      \/\/ \u2705 \u5e93\u4ee3\u7801\u4e00\u5f8b ConfigureAwait(false)，\u4e0d\u6355\u83b7 UI \u4e0a\u4e0b\u6587
      \npublic async Task<DataTable> LoadAsync()
      \n{
      \n using var conn = new SqlConnection(cs);
      \n await conn.OpenAsync().ConfigureAwait(false);
      \n \/\/ …
      \n}<\/p>\n

      \u89c4\u5219：<\/p>\n

        \n
      • \u5e95\u5c42\u5e93\/\u670d\u52a1\u5c42：\u6240\u6709 await \u52a0 .ConfigureAwait(false)，\u5f7b\u5e95\u65ad\u5f00\u4e0e UI \u4e0a\u4e0b\u6587\u7684\u8026\u5408\u3002<\/li>\n
      • UI \u5c42：\u9700\u8981\u66f4\u65b0\u63a7\u4ef6\u7684\u5730\u65b9\u5c31\u6b63\u5e38 await（\u56de\u5230 UI \u7ebf\u7a0b）\u3002<\/li>\n
      • \u7edd\u4e0d\u5728 UI \u7ebf\u7a0b\u5199 .Result \/ .Wait() \/ .GetAwaiter().GetResult()\u3002\u7528 IDE \u89c4\u5219\u6216 ConfigureAwait \u5206\u6790\u5668（\u5982 Meziantou.Analyzer）\u5361\u4f4f\u8fd9\u4e00\u70b9\u3002<\/li>\n<\/ul>\n

        4.3 \u9ad8\u9891\u4e8b\u4ef6：\u8282\u6d41（Throttle）\u4e0e\u9632\u6296（Debounce）<\/h4>\n

        \/\/ \u9632\u6296：\u505c\u6b62\u89e6\u53d1 N \u6beb\u79d2\u540e\u624d\u6267\u884c\u4e00\u6b21（\u9002\u5408 TextChanged \u641c\u7d22）
        \npublic static Action Debounce(Action action, int delayMs)
        \n{
        \n System.Timers.Timer? timer = null;
        \n return () =>
        \n {
        \n timer?.Stop();
        \n timer?.Dispose();
        \n timer = new System.Timers.Timer(delayMs) { AutoReset = false };
        \n timer.Elapsed += (_, _) => action();
        \n timer.Start();
        \n };
        \n}<\/p>\n

        \/\/ \u7528\u6cd5：textBox.TextChanged += (_, _) => debouncedSearch();<\/p>\n

        \/\/ \u8282\u6d41：\u56fa\u5b9a\u9891\u7387\u6700\u591a\u6267\u884c\u4e00\u6b21（\u9002\u5408 MouseMove\u3001Scroll）
        \nprivate DateTime _lastThrottled = DateTime.MinValue;
        \nvoid OnMouseMove(object sender, MouseEventArgs e)
        \n{
        \n var now = DateTime.Now;
        \n if ((now – _lastThrottled).TotalMilliseconds < 50) return;
        \n _lastThrottled = now;
        \n DoWork(e);
        \n}<\/p>\n

        4.4 \u6279\u91cf\u5237\u65b0：\u522b\u4e00\u6761\u6570\u636e\u5237\u4e00\u6b21（\u5de5\u63a7\u573a\u666f\u5fc5\u505a）<\/h4>\n

        \u6838\u5fc3\u601d\u60f3：\u540e\u53f0\u9ad8\u901f\u6536，UI \u5b9a\u9891\u753b\u3002\u7528 Channel \u505a\u7f13\u51b2，UI \u4fa7\u56fa\u5b9a 10~20fps \u6210\u6279\u6e32\u67d3\u3002<\/p>\n

        private readonly Channel<Sample> _queue = Channel.CreateUnbounded<Sample>();
        \nprivate readonly CancellationTokenSource _cts = new();<\/p>\n

        \/\/ \u540e\u53f0\u91c7\u96c6：\u591a\u5feb\u90fd\u884c，\u53ea\u7ba1\u5f80\u961f\u5217\u91cc\u6254
        \nprivate async Task CollectLoopAsync(CancellationToken ct)
        \n{
        \n while (!ct.IsCancellationRequested)
        \n {
        \n var s = await ReadFromPlcAsync(ct);
        \n _queue.Writer.TryWrite(s); \/\/ \u65e0\u9501\u3001\u65e0\u963b\u585e
        \n await Task.Delay(10, ct);
        \n }
        \n}<\/p>\n

        \/\/ UI \u4fa7：\u56fa\u5b9a 100ms（10fps）\u6279\u91cf\u51fa\u5e27，\u4eba\u773c\u5b8c\u5168\u591f\u7528
        \nprivate async Task UiPumpAsync(CancellationToken ct)
        \n{
        \n var buffer = new List<Sample>(4096);
        \n using var timer = new PeriodicTimer(TimeSpan.FromMilliseconds(100)); \/\/ .NET 6+
        \n while (await timer.WaitForNextTickAsync(ct))
        \n {
        \n while (_queue.Reader.TryRead(out var s)) buffer.Add(s);
        \n if (buffer.Count == 0) continue;<\/p>\n

        RenderBatch(buffer); \/\/ \u4e00\u6b21\u7ed8\u5236\u4e00\u6279，\u800c\u4e0d\u662f\u51e0\u5343\u6b21
        \n buffer.Clear();
        \n }
        \n}<\/p>\n

        \u6548\u679c：\u6bcf\u79d2 5000 \u4e2a\u6570\u636e\u70b9 \u2192 UI \u6bcf\u79d2\u53ea\u5237\u65b0 10 \u6b21，CPU \u4ece 90% \u964d\u5230\u4e2a\u4f4d\u6570\u3002\u4eba\u773c 10fps \u770b\u6570\u503c\u548c\u66f2\u7ebf\u5b8c\u5168\u8db3\u591f，\u786c\u8981 60fps \u662f\u81ea\u627e\u9ebb\u70e6\u3002<\/p>\n

        Channel \u9700\u8981 System.Threading.Channels；.NET Framework \u7528\u6237\u53ef\u7528 BlockingCollection<T> \u6216 ConcurrentQueue<T> \u66ff\u4ee3（\u6ce8\u610f\u522b\u5728 UI \u7ebf\u7a0b Take）\u3002<\/p>\n

        4.5 \u63a7\u4ef6\u7684\u6b63\u786e\u7528\u6cd5<\/h4>\n

        WinForms：<\/p>\n

        \/\/ \u6279\u91cf\u7ed3\u6784\u53d8\u66f4：\u6302\u8d77\u5e03\u5c40，\u6700\u540e\u4e00\u6b21\u6027\u6062\u590d
        \ndataGridView1.SuspendLayout();
        \ntry
        \n{
        \n dataGridView1.Rows.Add(…); \/\/ \u52a0 1000 \u884c
        \n}
        \nfinally { dataGridView1.ResumeLayout(); }<\/p>\n

        \/\/ TreeView \/ ListView \u540c\u7406
        \ntreeView1.BeginUpdate();
        \ntry { \/* \u6279\u91cf\u589e\u5220\u6539 *\/ } finally { treeView1.EndUpdate(); }<\/p>\n

          \n
        • \u5927\u6570\u636e\u91cf\u5217\u8868\u52a1\u5fc5\u7528\u865a\u62df\u6a21\u5f0f：DataGridView.VirtualMode = true + CellValueNeeded \u4e8b\u4ef6，\u6216 ListView.VirtualMode\u300210 \u4e07\u884c\u6570\u636e\u53ea\u6e32\u67d3\u5c4f\u5e55\u4e0a\u53ef\u89c1\u7684\u51e0\u5341\u884c，\u6027\u80fd\u5929\u58e4\u4e4b\u522b\u3002<\/li>\n
        • \u56fe\u8868\u63a7\u4ef6：\u9650\u5236\u663e\u793a\u70b9\u6570（\u62bd\u7a00\/\u964d\u91c7\u6837），\u4e0d\u8981\u4e00\u4e2a\u4e0d\u6f0f\u5168\u753b\u3002\u8d8b\u52bf\u66f2\u7ebf\u7528"\u62bd\u70b9\u7b97\u6cd5"（\u5982 LTTB \u6216\u7b80\u5355\u7684\u7b49\u95f4\u9694\u62bd\u7a00）\u628a 10 \u4e07\u70b9\u538b\u5230 2000 \u70b9\u518d\u753b\u3002<\/li>\n<\/ul>\n

          WPF：<\/p>\n

            \n
          • ItemsControl \u52a1\u5fc5\u5f00\u542f\u865a\u62df\u5316：\n

            <ListBox VirtualizingStackPanel.IsVirtualizing="True"
            \n VirtualizingStackPanel.VirtualizationMode="Recycling"
            \n ScrollViewer.CanContentScroll="True"><\/p>\n

            \u6ce8\u610f：CanContentScroll="False"（\u50cf\u7d20\u6eda\u52a8）\u4f1a\u76f4\u63a5\u7981\u7528\u865a\u62df\u5316，\u8fd9\u662f\u6700\u5e38\u89c1\u7684\u8e29\u5751\u70b9\u3002<\/li>\n

          • \u7ed1\u5b9a\u5927\u6570\u636e\u7528 ObservableCollection \u65f6，\u6279\u91cf\u53d8\u66f4\u7528 AddRange \u98ce\u683c\u7684\u81ea\u5b9a\u4e49\u96c6\u5408（\u4e00\u6b21\u6027 Reset \u901a\u77e5），\u907f\u514d N \u6b21\u901a\u77e5 N \u6b21\u5e03\u5c40\u3002<\/li>\n
          • \u9759\u6001\u8d44\u6e90\/\u753b\u5237\u6807\u8bb0 x:Static \u6216 Freeze() \u53ef\u51bb\u7ed3\u5bf9\u8c61\u3002<\/li>\n
          • \u52a8\u753b\u7528 RenderTransform \u800c\u975e\u6539 Margin\/Width（\u907f\u514d\u89e6\u53d1\u5e03\u5c40\u91cd\u7b97）\u3002<\/li>\n<\/ul>\n

            4.6 \u8de8\u7ebf\u7a0b\u66f4\u65b0：\u7528 BeginInvoke，\u5e76\u5408\u5e76<\/h4>\n

            \/\/ \u274c Invoke \u662f\u540c\u6b65\u963b\u585e：\u540e\u53f0\u7ebf\u7a0b\u8981\u7b49 UI \u5904\u7406\u5b8c\u624d\u7ee7\u7eed
            \nthis.Invoke(new Action(() => label.Text = v));<\/p>\n

            \/\/ \u2705 BeginInvoke \u662f\u5f02\u6b65\u6295\u9012：\u540e\u53f0\u7ebf\u7a0b\u6254\u4e0b\u5c31\u8d70
            \nthis.BeginInvoke(new Action(() => label.Text = v));<\/p>\n

            \u4f46\u66f4\u91cd\u8981\u7684\u662f\u9891\u7387\u2014\u2014\u5373\u4f7f BeginInvoke，\u6bcf\u79d2\u51e0\u5343\u6b21\u7167\u6837\u628a UI \u961f\u5217\u6491\u7206\u3002\u6240\u4ee5 4.4 \u7684"\u5b9a\u9891\u6279\u91cf"\u662f\u6839\u672c\u89e3\u6cd5，BeginInvoke \u53ea\u662f\u51cf\u5c11\u7b49\u5f85\u3002<\/p>\n

            \u5224\u65ad\u662f\u5426\u9700\u8981 Invoke：<\/p>\n

            private void SafeUpdate(Action a)
            \n{
            \n if (IsHandleCreated && InvokeRequired) BeginInvoke(a);
            \n else a();
            \n}<\/p>\n

            4.7 GC \u4e0e\u5185\u5b58：\u6d88\u706d"\u5468\u671f\u6027\u987f\u4e00\u4e0b"<\/h4>\n

            \u5982\u679c\u5361\u987f\u8868\u73b0\u4e3a\u6bcf\u9694\u4e00\u6bb5\u65f6\u95f4\u89c4\u5f8b\u6027\u987f\u4e00\u4e0b（\u800c\u4e0d\u662f\u64cd\u4f5c\u67d0\u529f\u80fd\u65f6\u5361），\u5927\u6982\u7387\u662f GC\u3002<\/p>\n

              \n
            • \u907f\u514d\u5728\u9ad8\u9891\u5faa\u73af\u91cc new \u5bf9\u8c61：\u7528\u5bf9\u8c61\u6c60 \/ ArrayPool<T>.Shared.Rent() \/ \u590d\u7528\u7f13\u51b2\u533a<\/li>\n
            • \u9ad8\u9891\u6570\u503c\u573a\u666f\u4f18\u5148 struct（\u503c\u7c7b\u578b），\u907f\u514d\u88c5\u7bb1<\/li>\n
            • \u5927\u5bf9\u8c61（>85KB）\u4f1a\u8fdb LOH，\u9891\u7e41\u5206\u914d\u4f1a\u89e6\u53d1\u6602\u8d35\u7684 Gen2 \u56de\u6536<\/li>\n
            • \u5b57\u7b26\u4e32\u62fc\u63a5\u7528 StringBuilder，\u65e5\u5fd7\u522b\u5728\u5faa\u73af\u91cc\u62fc<\/li>\n
            • \u7528 GC.TryStartNoGCRegion（\u8c28\u614e\u4f7f\u7528）\u4fdd\u62a4\u5173\u952e\u5b9e\u65f6\u6bb5<\/li>\n<\/ul>\n

              \u6392\u67e5：PerfView \u770b GC \u6682\u505c\u65f6\u95f4，\u6216 AppContext \u6253\u5f00 GC \u65e5\u5fd7\u3002<\/p>\n

              4.8 \u6e32\u67d3\u5c42\u4f18\u5316<\/h4>\n

              WinForms：<\/p>\n

              \/\/ \u5f00\u542f\u53cc\u7f13\u51b2，\u6d88\u9664\u95ea\u70c1\u4e0e\u53cd\u590d\u64e6\u9664
              \npublic MyControl()
              \n{
              \n SetStyle(ControlStyles.OptimizedDoubleBuffer |
              \n ControlStyles.AllPaintingInWmPaint |
              \n ControlStyles.UserPaint, true);
              \n}<\/p>\n

                \n
              • OnPaint \u91cc\u53ea\u753b，\u4e0d\u7b97：\u4f4d\u56fe\u9884\u751f\u6210\u3001\u9884\u7f29\u653e，\u7ed8\u5236\u65f6\u76f4\u63a5 DrawImage<\/li>\n
              • \u65e0\u6548\u533a\u88c1\u526a：Invalidate(rect) \u800c\u975e Invalidate() \u5168\u7a97\u91cd\u7ed8<\/li>\n<\/ul>\n

                WPF：<\/p>\n

                  \n
                • \u590d\u6742\u9759\u6001\u89c6\u89c9\u6811\u7528 BitmapCache \u7f13\u5b58<\/li>\n
                • \u80fd\u51bb\u7ed3\u7684 Freezable \u5c31 Freeze()<\/li>\n
                • \u907f\u514d\u5d4c\u5957\u591a\u5c42 Grid \u53cd\u590d\u6d4b\u91cf；\u5e03\u5c40\u6296\u52a8\u65f6\u8003\u8651\u56fa\u5b9a\u5c3a\u5bf8<\/li>\n
                • OpacityMask\u3001\u5927\u9762\u79ef Effect（\u5982 DropShadowEffect）\u5f88\u8d35，\u80fd\u7701\u5219\u7701<\/li>\n<\/ul>\n
                  \n

                  \u4e94\u3001\u4e24\u4e2a\u5178\u578b\u6848\u4f8b<\/h3>\n

                  \u6848\u4f8b A：\u6570\u636e\u91c7\u96c6\u8f6f\u4ef6，\u6bcf\u79d2 5000 \u70b9，\u754c\u9762\u70b9\u4e0d\u52a8<\/h4>\n

                  \u75c7\u72b6：\u63a5\u4e0a PLC \u540e\u754c\u9762\u51e0\u4e4e\u65e0\u6cd5\u64cd\u4f5c，CPU \u5360\u7528 90%+\u3002<\/p>\n

                  \u5b9a\u4f4d：\u770b\u95e8\u72d7\u65e5\u5fd7\u663e\u793a\u6301\u7eed 300~800ms \u7684 STALL\u3002dotTrace \u663e\u793a UI \u7ebf\u7a0b\u88ab\u5927\u91cf Invoke \u8c03\u7528\u6808\u5360\u6ee1\u3002<\/p>\n

                  \u6839\u56e0：\u6bcf\u4e2a\u6570\u636e\u70b9\u56de\u8c03\u91cc this.Invoke() \u66f4\u65b0 Label + \u8ffd\u52a0\u66f2\u7ebf\u70b9，\u7b49\u4e8e\u6bcf\u79d2 5000 \u6b21\u8de8\u7ebf\u7a0b\u6d88\u606f + 5000 \u6b21\u63a7\u4ef6\u91cd\u7ed8 + \u66f2\u7ebf\u70b9\u6570\u65e0\u4e0a\u9650\u589e\u957f\u3002<\/p>\n

                  \u6539\u6cd5：<\/p>\n

                • \u91c7\u96c6\u56de\u8c03\u6539\u4e3a Channel.Writer.TryWrite，\u53ea\u5165\u961f<\/li>\n
                • UI \u4fa7 PeriodicTimer 100ms \u6279\u91cf\u51fa\u5e27<\/li>\n
                • \u66f2\u7ebf\u505a\u62bd\u7a00，\u6700\u591a\u4fdd\u7559 2000 \u4e2a\u663e\u793a\u70b9，\u5386\u53f2\u6570\u636e\u843d\u5e93<\/li>\n
                • \u6570\u503c\u6807\u7b7e\u53ea\u66f4\u65b0\u53ef\u89c1\u533a\u57df（\u865a\u62df\u6a21\u5f0f）<\/li>\n

                  \u7ed3\u679c：CPU \u964d\u5230 8%，\u754c\u9762\u4e1d\u6ed1\u3002<\/p>\n

                  \u6848\u4f8b B：\u70b9"\u52a0\u8f7d"\u6309\u94ae\u540e\u5f7b\u5e95\u5047\u6b7b，\u65e0\u62a5\u9519<\/h4>\n

                  \u75c7\u72b6：\u70b9\u51fb\u540e\u754c\u9762\u5b8c\u5168\u65e0\u54cd\u5e94，\u4efb\u52a1\u7ba1\u7406\u5668\u663e\u793a CPU \u5360\u7528\u63a5\u8fd1 0（\u5173\u952e\u7ebf\u7d22：CPU \u4e3a 0 \u8bf4\u660e\u4e0d\u662f\u5728\u8ba1\u7b97，\u662f\u5728\u7b49\u5f85）\u3002<\/p>\n

                  \u5b9a\u4f4d：CPU \u5360\u7528\u4e3a 0 \u5374\u5361\u6b7b = \u5178\u578b\u6b7b\u9501\u7279\u5f81\u3002<\/p>\n

                  \u6839\u56e0：var data = LoadAsync().Result; \u2014\u2014 UI \u7ebf\u7a0b\u540c\u6b65\u7b49\u5f85，\u800c LoadAsync \u5185\u90e8 await \u540e\u9700\u8981\u56de\u5230 UI \u7ebf\u7a0b\u3002<\/p>\n

                  \u6539\u6cd5：<\/p>\n

                • \u4e8b\u4ef6\u5904\u7406\u5668\u6539 async void，\u5168\u7a0b await<\/li>\n
                • \u670d\u52a1\u5c42\u6240\u6709 await \u8865 .ConfigureAwait(false)<\/li>\n
                • \u52a0\u4e0a\u5168\u5c40\u89c4\u5219\u7981\u6b62 .Result\/.Wait()<\/li>\n
                  \n

                  \u516d\u3001\u6392\u67e5 Checklist<\/h3>\n

                  \u6309\u8fd9\u4e2a\u987a\u5e8f\u8fc7\u4e00\u904d，\u57fa\u672c\u4e0d\u4f1a\u6f0f：<\/p>\n

                    \n
                  • [ ] \u5148\u91cf\u5316：\u52a0 UI \u5fc3\u8df3\u770b\u95e8\u72d7，\u786e\u8ba4\u5361\u591a\u4e45\u3001\u4ec0\u4e48\u65f6\u5019\u5361<\/li>\n
                  • [ ] \u6293\u73b0\u573a：dotTrace \/ VS \u63a2\u67e5\u5668\u770b UI \u7ebf\u7a0b\u4e0a\u6700\u957f\u7684\u90a3\u4e00\u6761\u5b9e\u5fc3\u5757<\/li>\n
                  • [ ] \u5168\u5c40\u641c\u200b .Result\u3001.Wait()\u3001.GetAwaiter().GetResult()，\u5168\u90e8\u6539\u6389<\/li>\n
                  • [ ] \u5168\u5c40\u641c\u200b UI \u4e8b\u4ef6\u91cc\u7684\u540c\u6b65 IO：\u6570\u636e\u5e93\u3001\u6587\u4ef6\u3001\u7f51\u7edc\u3001\u4e32\u53e3<\/li>\n
                  • [ ] \u68c0\u67e5\u670d\u52a1\u5c42\u662f\u5426\u6709 ConfigureAwait(false)<\/li>\n
                  • [ ] \u7edf\u8ba1 UI \u66f4\u65b0\u9891\u7387：\u4e00\u79d2\u5185\u66f4\u65b0\u4e86\u591a\u5c11\u6b21？\u8d85\u8fc7 60 \u6b21\u5c31\u8be5\u6279\u91cf\u5316<\/li>\n
                  • [ ] \u68c0\u67e5 Invoke \u8c03\u7528\u6b21\u6570，\u6539 BeginInvoke + \u6279\u91cf<\/li>\n
                  • [ ] \u5927\u6570\u636e\u5217\u8868：\u662f\u5426\u5f00\u4e86\u865a\u62df\u6a21\u5f0f \/ UI \u865a\u62df\u5316<\/li>\n
                  • [ ] DataGridView\/ListView\/TreeView \u6279\u91cf\u64cd\u4f5c\u662f\u5426 BeginUpdate\/SuspendLayout<\/li>\n
                  • [ ] \u9ad8\u9891\u4e8b\u4ef6（TextChanged\/MouseMove\/Scroll）\u662f\u5426\u505a\u4e86\u8282\u6d41\u9632\u6296<\/li>\n
                  • [ ] OnPaint \u91cc\u6709\u6ca1\u6709\u505a\u8ba1\u7b97\u3001\u8bfb\u6587\u4ef6\u3001\u7f29\u653e\u4f4d\u56fe<\/li>\n
                  • [ ] \u66f2\u7ebf\/\u56fe\u8868\u70b9\u6570\u662f\u5426\u6709\u4e0a\u9650，\u662f\u5426\u62bd\u7a00<\/li>\n
                  • [ ] \u9ad8\u9891\u5faa\u73af\u91cc\u662f\u5426\u9891\u7e41 new \u5bf9\u8c61（\u770b GC \u6682\u505c）<\/li>\n
                  • [ ] WinForms \u662f\u5426\u5f00\u4e86\u53cc\u7f13\u51b2；WPF \u662f\u5426\u8bef\u8bbe CanContentScroll="False"<\/li>\n
                  • [ ] \u662f\u5426\u6709\u5168\u91cf\u6570\u636e\u65e0\u8282\u5236\u585e\u8fdb UI（\u5206\u9875 \/ \u53ea\u663e\u793a\u53ef\u89c1\u8303\u56f4）<\/li>\n<\/ul>\n
                    \n

                    \u4e03\u3001\u4ec0\u4e48\u65f6\u5019\u8be5\u6362\u67b6\u6784<\/h3>\n

                    \u5982\u679c\u4ee5\u4e0a\u90fd\u505a\u4e86\u4ecd\u7136\u5361，\u8bf4\u660e\u5355\u673a\u5355\u8fdb\u7a0b\u7684\u6a21\u578b\u5df2\u7ecf\u5230\u5934\u4e86，\u8003\u8651：<\/p>\n

                  • \u91c7\u96c6\u4e0e\u754c\u9762\u5206\u79bb：\u540e\u53f0\u670d\u52a1（Windows Service）\u8d1f\u8d23\u91c7\u96c6+\u5165\u5e93，UI \u8fdb\u7a0b\u53ea\u8ba2\u9605\/\u8f6e\u8be2\u5c11\u91cf\u805a\u5408\u6570\u636e\u3002\u5de5\u63a7\u5927\u9879\u76ee\u5f3a\u70c8\u63a8\u8350\u8fd9\u6761\u8def\u3002<\/li>\n
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