Improve benchmarks

Makefile

@@ -1,4 +1,4 @@
-BASE_BENCH_CMD = python -m pytest -v --benchmark-only benchmarks/ -k
+BASE_BENCH_CMD = python -m pytest -v --benchmark-sort name --benchmark-only benchmarks/ -k
 
 test:
 	python -m pytest -v --ignore benchmarks

benchmarks/data/COPYING

@@ -0,0 +1,23 @@
+Some of the benchmark data in in this directory is licensed thusly:
+
+ - fireworks.jpeg is Copyright 2013 Steinar H. Gunderson, and
+   is licensed under the Creative Commons Attribution 3.0 license
+   (CC-BY-3.0). See https://creativecommons.org/licenses/by/3.0/
+   for more information.
+
+ - kppkn.gtb is taken from the Gaviota chess tablebase set, and
+   is licensed under the MIT License. See
+   https://sites.google.com/site/gaviotachessengine/Home/endgame-tablebases-1
+   for more information.
+
+ - paper-100k.pdf is an excerpt (bytes 92160 to 194560) from the paper
+   “Combinatorial Modeling of Chromatin Features Quantitatively Predicts DNA
+   Replication Timing in _Drosophila_” by Federico Comoglio and Renato Paro,
+   which is licensed under the CC-BY license. See
+   http://www.ploscompbiol.org/static/license for more ifnormation.
+
+ - alice29.txt, asyoulik.txt, plrabn12.txt and lcet10.txt are from Project
+   Gutenberg. The first three have expired copyrights and are in the public
+   domain; the latter does not have expired copyright, but is still in the
+   public domain according to the license information
+   (http://www.gutenberg.org/ebooks/53).