uasyncio: Add automated script for performance testing with Apache Bench.

uasyncio/benchmark/test-ab-light.sh

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+#!/bin/sh
+#
+# This in one-shot scripts to test "light load" uasyncio HTTP server using
+# Apache Bench (ab).
+#
+
+micropython -O test_http_server_light.py &
+sleep 1
+
+ab -n10000 -c100 http://localhost:8081/
+
+kill %1

uasyncio/benchmark/test_http_server_light.py

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+import uasyncio as asyncio
+
+
+@asyncio.coroutine
+def serve(reader, writer):
+    #print(reader, writer)
+    #print("================")
+    yield from reader.read()
+    yield from writer.awrite("HTTP/1.0 200 OK\r\n\r\nHello.\r\n")
+    yield from writer.close()
+    #print("Finished processing request")
+
+
+import logging
+#logging.basicConfig(level=logging.INFO)
+logging.basicConfig(level=logging.DEBUG)
+loop = asyncio.get_event_loop()
+mem_info()
+loop.call_soon(asyncio.start_server(serve, "127.0.0.1", 8081, backlog=100))
+loop.run_forever()
+loop.close()