--- a/MonoPlay/Program.cs	Thu Mar 24 18:52:10 2016 +0300
+++ b/MonoPlay/Program.cs	Fri Mar 25 02:49:02 2016 +0300
@@ -1,6 +1,9 @@
 using System;
 using Implab;
 using System.Threading.Tasks;
+using Implab.Formats.JSON;
+using System.IO;
+using System.Text.Json;
 
 namespace MonoPlay {
     class MainClass {
@@ -9,28 +12,33 @@
         public static void Main(string[] args) {
             if (args == null)
                 throw new ArgumentNullException("args");
-
-            var t1 = Environment.TickCount;
-
-            DoWork().GetAwaiter().GetResult();
+            int t1, t2;
 
-            var t2 = Environment.TickCount;
-            Console.WriteLine("done: {0} ms, {1:.00} Mb, {2} GC", t2 - t1, GC.GetTotalMemory(false) / (1024*1024), GC.CollectionCount(0) );
+            for (int i = 0; i < 2; i++) {
+                t1 = Environment.TickCount;
+                int elements =0;
+                using (var reader = new JSONParser(File.OpenText("/home/sergey/temp/citylots.json"))) {
+                    while (reader.Read())
+                        elements++;
+                }
 
-        }
+                t2 = Environment.TickCount;
+                Console.WriteLine("attempt {0} done: {1} ms, {2:.00} Mb, {3} GC, Elements: {4}",i+1, t2 - t1, GC.GetTotalMemory(false) / (1024*1024), GC.CollectionCount(0), elements );
+            }
 
-        static IPromise<int> DoItem(int x) {
-            //return Promise<int>.FromResult(x + 1);
-            var p = new Promise<int>();
-            p.Resolve(x+1);
-            return p;
-        }
+            Console.WriteLine("Syste.Text.Json");
+            var paraser = new JsonParser();
+            for (int i = 0; i < 2; i++) {
+                t1 = Environment.TickCount;
+                using (var reader = File.OpenText("/home/sergey/temp/citylots.json")) {
+                    paraser.Parse(reader);
+                }
 
-        static async Task<int> DoWork() {
-            var c = 0;
-            for (int i = 0; i < 10000000; i++)
-                c = await DoItem(c);
-            return c;
+                t2 = Environment.TickCount;
+                Console.WriteLine("attempt {0} done: {1} ms, {2:.00} Mb, {3} GC, ",i+1, t2 - t1, GC.GetTotalMemory(false) / (1024*1024), GC.CollectionCount(0));
+            }
+
+
         }
 
     }