static void Main(string[] args) { string s = "http://cn.bing.com/search?q=MD5CryptoServiceProvider+slow&qs=n&pq=md5cryptoserviceprovider+slow&sc=0-25&sp=-1&sk=&cvid=67d40cbd8c424d55a3db83e6e9868267&first=51&FORM=PERE4"; using (MD5CryptoServiceProvider md5 = new MD5CryptoServiceProvider()) { byte[] inBytes = Encoding.UTF8.GetBytes(s); var bytes = md5.ComputeHash(inBytes); Console.WriteLine(bytes.Length); } var splitter = new TransformBlock <string, KeyValuePair <string, int> >( input => { var splitted = input.Split('='); return(new KeyValuePair <string, int>(splitted[0], int.Parse(splitted[1]))); }); var dict = new Dictionary <string, int>(); var aggregater = new ActionBlock <KeyValuePair <string, int> >( pair => { int oldValue; dict[pair.Key] = dict.TryGetValue(pair.Key, out oldValue) ? oldValue + pair.Value : pair.Value; }); splitter.LinkTo(aggregater, new DataflowLinkOptions() { PropagateCompletion = true }); splitter.Post("a=1"); splitter.Post("b=2"); splitter.Post("a=5"); splitter.Complete(); aggregater.Completion.Wait(); Console.WriteLine("sum(a) = {0}", dict["a"]); //prints sum(a) = 6 string containerName = "dataflowex-demo-" + Guid.NewGuid(); TestBootstrapper.BootSqlServerWithDockerCli(null, containerName); //CalcAsync().Wait(); //SlowFlowAsync().Wait(); //FailDemoAsync().Wait(); //TransformAndLinkDemo().Wait(); //LinkLeftToDemo().Wait(); //CircularFlowAutoComplete().Wait(); //RecorderDemo().Wait(); BulkInserterDemo().Wait(); //BulkInserterDemo2().Wait(); //BroadcasterDemo().Wait(); //MyLoggerDemo().Wait(); //ETLLookupDemo().Wait(); TestBootstrapper.ShutdownSqlServerWithDockerCli(false, containerName); // leave the container so that we can check result manually through ssms. }