--- /dev/null
+#!/usr/bin/env tesh
+
+$ ${bindir:=.}/s4u-comm-serialize "--log=root.fmt:[%10.6r]%e(%i:%a@%h)%e%m%n"
+> [ 0.000000] (1:receiver@receiver) Wait for 10 messages asynchronously
+> [ 0.000000] (2:sender@sender) Send 'Message 0' to 'receiver'
+> [ 0.000000] (2:sender@sender) Send 'Message 1' to 'receiver'
+> [ 0.000000] (2:sender@sender) Send 'Message 2' to 'receiver'
+> [ 0.000000] (2:sender@sender) Send 'Message 3' to 'receiver'
+> [ 0.000000] (2:sender@sender) Send 'Message 4' to 'receiver'
+> [ 0.000000] (2:sender@sender) Send 'Message 5' to 'receiver'
+> [ 0.000000] (2:sender@sender) Send 'Message 6' to 'receiver'
+> [ 0.000000] (2:sender@sender) Send 'Message 7' to 'receiver'
+> [ 0.000000] (2:sender@sender) Send 'Message 8' to 'receiver'
+> [ 0.000000] (2:sender@sender) Send 'Message 9' to 'receiver'
+> [ 0.000000] (2:sender@sender) Done dispatching all messages
+> [ 0.000336] (1:receiver@receiver) I got 'Message 1'.
+> [ 0.000336] (1:receiver@receiver) I got 'Message 0'.
+> [ 0.000542] (1:receiver@receiver) I got 'Message 3'.
+> [ 0.000542] (1:receiver@receiver) I got 'Message 2'.
+> [ 0.000749] (1:receiver@receiver) I got 'Message 5'.
+> [ 0.000749] (1:receiver@receiver) I got 'Message 4'.
+> [ 0.000955] (1:receiver@receiver) I got 'Message 7'.
+> [ 0.000955] (1:receiver@receiver) I got 'Message 6'.
+> [ 0.001161] (1:receiver@receiver) I got 'Message 9'.
+> [ 0.001161] (1:receiver@receiver) I got 'Message 8'.
+> [ 0.001161] (2:sender@sender) Goodbye now!