[PATCH 5/5] Add a little script to compare two make perf runs

[Andi Kleen <andi@firstfloor.org>]

From: Andi Kleen <ak@linux.intel.com>

Signed-off-by: Andi Kleen <ak@linux.intel.com>
---
 diff-res | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)
 create mode 100755 diff-res

diff --git a/diff-res b/diff-res
new file mode 100755
index 0000000..90d57be
--- /dev/null
+++ b/diff-res
@@ -0,0 +1,26 @@
+#!/usr/bin/python
+# compare two make perf output file
+# this should be the results only without any header
+import argparse
+import math, operator
+from collections import OrderedDict
+
+ap = argparse.ArgumentParser()
+ap.add_argument('file1', type=argparse.FileType('r'))
+ap.add_argument('file2', type=argparse.FileType('r'))
+args = ap.parse_args()
+
+cmp = (OrderedDict(), OrderedDict())
+for f, k in zip((args.file1, args.file2), cmp):
+    for j in f:
+        num = j[59:63]
+        name = j[:59]
+        k[name] = float(num)
+
+for j in cmp[0].keys():
+    print j, cmp[1][j] - cmp[0][j]
+
+def geomean(l):
+   return math.pow(reduce(operator.mul, filter(lambda x: x != 0.0, l)), 1.0 / len(l))
+
+print "geomean %.2f -> %.2f" % (geomean(cmp[0].values()), geomean(cmp[1].values()))
-- 
2.0.1