uasyncio/benchmark: Add "medium load" server, serving 12K output per request.

uasyncio/benchmark/test_http_server_medium.py

@@ -0,0 +1,22 @@
+import uasyncio as asyncio
+
+resp = "HTTP/1.0 200 OK\r\n\r\n" + "Hello.\r\n" * 1500
+
+@asyncio.coroutine
+def serve(reader, writer):
+    #print(reader, writer)
+    #print("================")
+    yield from reader.read(256)
+    yield from writer.awrite(resp)
+    yield from writer.aclose()
+    #print("Finished processing request")
+
+
+import logging
+#logging.basicConfig(level=logging.INFO)
+logging.basicConfig(level=logging.DEBUG)
+loop = asyncio.get_event_loop()
+#mem_info()
+loop.create_task(asyncio.start_server(serve, "127.0.0.1", 8081, backlog=100))
+loop.run_forever()
+loop.close()