file streams

ConsoleCore/Program.cs

@@ -1,4 +1,5 @@
 using System;
+using System.IO;
 using ClassLib000.Chess;
 using ClassLib000.TestModel;
 using ClassLib000.Walker;
@@ -20,6 +21,7 @@ namespace ConsoleCore
             //ChessConsoler.ChessRedrawBoard(game);
             //ChessConsoler.ChessRedrawBrokenFigures(game);
 
+            /*
             Appartment app = new Appartment();
             app.InitRoom(0, 0, 10, 4);
             app.InitVC();
@@ -27,7 +29,9 @@ namespace ConsoleCore
             RobotConsoler.DrawRoom(app);
             System.Collections.Generic.List<CleanSpace> arWeekDirty = 
                 app.GetDirtyCleanSpace(7);
-
+            */
+            RobotFiler.WriteLargeStream(Path.Combine(".", "tmp.txt"), 1);
+            RobotFiler.WriteLargeText(Path.Combine(".", "tmp.txt"), 1);
 
         }
 

ConsoleCore/RobotFiler.cs

@@ -16,5 +16,46 @@ namespace ConsoleCore
             // byte[] bt = Encoding.UTF8.GetBytes(app.GetContent());
             // File.WriteAllBytes(sFileName, bt);
         }
+
+        internal static void WriteLargeStream(string sFileName, int gb)
+        {
+            byte[] bt = new byte[] { 67, 67, 67 };
+            using (Stream file = File.Create(sFileName, 1024 * 64, FileOptions.DeleteOnClose))
+            {
+                DateTime dtFrom = DateTime.Now;
+                Console.WriteLine($"{dtFrom:HHmmss}");
+                long ll = ((long)1024) * 1024 * 1024 * gb;
+                for (long ii = 0; ii < ll; ii++)
+                {
+                    file.Write(bt);
+                    // file.WriteByte(67);
+                }
+                DateTime dtTo = DateTime.Now;
+                TimeSpan ts = dtTo - dtFrom;
+                Console.WriteLine($"{sFileName}: {ts.TotalSeconds} sec");
+                Console.ReadKey();
+            }
+        }
+
+        internal static void WriteLargeText(string sFileName, long rowCount)
+        {
+            byte[] bt = new byte[] { 67, 67, 67 };
+            using (Stream file = File.Create(sFileName, 1024 * 64, FileOptions.DeleteOnClose))
+            {
+                DateTime dtFrom = DateTime.Now;
+                Console.WriteLine($"{dtFrom:HHmmss}");
+                using (StreamWriter writer = new StreamWriter(file, Encoding.UTF8))
+                {
+                    for (long ii = 0; ii < rowCount; ii++)
+                    {
+                        writer.WriteLine($"{dtFrom:HHmmss}");
+                    }
+                }
+                DateTime dtTo = DateTime.Now;
+                TimeSpan ts = dtTo - dtFrom;
+                Console.WriteLine($"{sFileName}: {ts.TotalSeconds} sec");
+                Console.ReadKey();
+            }
+        }
     }
 }