Added a benchmark runner

  based on ``perf``

benchmarks/run.py

@@ -0,0 +1,24 @@
+import os
+import os.path
+import sys
+from functools import partial
+
+from perf.text_runner import TextRunner
+
+from pyte import Screen, Stream
+
+
+def make_benchmark(path):
+    with open(path, "rt") as handle:
+        data = handle.read()
+
+    stream = Stream(Screen(80, 24))
+    return partial(stream.feed, data)
+
+
+if __name__ == "__main__":
+    benchmark_dir = os.path.dirname(__file__)
+    benchmark = os.path.join(benchmark_dir, os.environ["BENCHMARK"])
+
+    runner = TextRunner()
+    runner.bench_func(make_benchmark(benchmark))