Added benchmark.py that compares the time of various operations

and gives a report with the percent of total computation time
each takes

1 files changed, 42 insertions, 0 deletions

diff --git a/wqflask/utility/benchmark.py b/wqflask/utility/benchmark.py
new file mode 100644
index 00000000..0a6e422c
--- /dev/null
+++ b/wqflask/utility/benchmark.py
@@ -0,0 +1,42 @@
+from __future__ import print_function, division, absolute_import
+
+import collections
+import inspect
+import time
+
+
+class Bench(object):
+    entries = collections.OrderedDict()
+    def __init__(self, name=None):
+        self.name = name
+
+    def __enter__(self):
+        if self.name:
+            print("Starting benchmark: %s" % (self.name))
+        else:
+            print("Starting benchmark at: %s [%i]" % (inspect.stack()[1][3], inspect.stack()[1][2]))
+        self.start_time = time.time()
+
+    def __exit__(self, type, value, traceback):
+        if self.name:
+            name = self.name
+        else:
+            name = "That"
+
+        time_took = time.time() - self.start_time
+        print("  %s took: %f seconds" % (name, (time_took)))
+        
+        if self.name:
+            Bench.entries[self.name] = time_took
+
+    @classmethod
+    def report(cls):
+        total_time = sum((time_took for time_took in cls.entries.itervalues()))
+        print("\nTiming report\n")
+        for name, time_took in cls.entries.iteritems():
+            percent = int(round((time_took/total_time) * 100))
+            print("[{}%] {}: {}".format(percent, name, time_took))
+        print()
+        
+        # Reset the entries after reporting
+        cls.entries = collections.OrderedDict()
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