From 5cb3d759d601455e7e94b59d1baaf167782f3544 Mon Sep 17 00:00:00 2001
From: Stefan van der Walt <stefan@sun.ac.za>
Date: Sat, 17 Feb 2007 18:36:16 +0000
Subject: Refactor benchmarks.

---
 benchmarks/benchmark.py | 42 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 42 insertions(+)
 create mode 100644 benchmarks/benchmark.py

(limited to 'benchmarks/benchmark.py')

diff --git a/benchmarks/benchmark.py b/benchmarks/benchmark.py
new file mode 100644
index 000000000..59e464686
--- /dev/null
+++ b/benchmarks/benchmark.py
@@ -0,0 +1,42 @@
+from timeit import Timer
+
+class Benchmark(dict):
+    """Benchmark a feature in different modules."""
+
+    def __init__(self,modules,title='',runs=3,reps=1000):
+        self.module_test = dict((m,'') for m in modules)
+        self.runs = runs
+        self.reps = reps
+        self.title = title
+
+    def __setitem__(self,module,(test_str,setup_str)):
+        """Set the test code for modules."""
+        if module == 'all':
+            modules = self.module_test.keys()
+        else:
+            modules = [module]
+
+        for m in modules:
+            setup_str = 'import %s; import %s as N; ' % (m,m) \
+                        + setup_str
+            self.module_test[m] = Timer(test_str, setup_str)
+
+    def run(self):
+        """Run the benchmark on the different modules."""
+        module_column_len = max(len(mod) for mod in self.module_test)
+
+        if self.title:
+            print self.title
+        print 'Doing %d runs, each with %d reps.' % (self.runs,self.reps)
+        print '-'*79
+
+        for mod in sorted(self.module_test):
+            modname = mod.ljust(module_column_len)
+            try:
+                print "%s: %s" % (modname, \
+                    self.module_test[mod].repeat(self.runs,self.reps))
+            except Exception, e:
+                print "%s: Failed to benchmark (%s)." % (modname,e)
+
+        print '-'*79
+        print
-- 
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