1 files changed, 31 insertions, 30 deletions
diff --git a/tools/profiling/microbenchmarks/bm_diff/bm_speedup.py b/tools/profiling/microbenchmarks/bm_diff/bm_speedup.py
index 63e691af02..2a77040360 100755
--- a/tools/profiling/microbenchmarks/bm_diff/bm_speedup.py
+++ b/tools/profiling/microbenchmarks/bm_diff/bm_speedup.py
@@ -19,40 +19,41 @@ import math
 
 _DEFAULT_THRESHOLD = 1e-10
 
+
 def scale(a, mul):
-  return [x * mul for x in a]
+    return [x * mul for x in a]
 
 
 def cmp(a, b):
-  return stats.ttest_ind(a, b)
-
-
-def speedup(new, old, threshold = _DEFAULT_THRESHOLD):
-  if (len(set(new))) == 1 and new == old: return 0
-  s0, p0 = cmp(new, old)
-  if math.isnan(p0): return 0
-  if s0 == 0: return 0
-  if p0 > threshold: return 0
-  if s0 < 0:
-    pct = 1
-    while pct < 100:
-      sp, pp = cmp(new, scale(old, 1 - pct / 100.0))
-      if sp > 0: break
-      if pp > threshold: break
-      pct += 1
-    return -(pct - 1)
-  else:
-    pct = 1
-    while pct < 10000:
-      sp, pp = cmp(new, scale(old, 1 + pct / 100.0))
-      if sp < 0: break
-      if pp > threshold: break
-      pct += 1
-    return pct - 1
+    return stats.ttest_ind(a, b)
+
+
+def speedup(new, old, threshold=_DEFAULT_THRESHOLD):
+    if (len(set(new))) == 1 and new == old: return 0
+    s0, p0 = cmp(new, old)
+    if math.isnan(p0): return 0
+    if s0 == 0: return 0
+    if p0 > threshold: return 0
+    if s0 < 0:
+        pct = 1
+        while pct < 100:
+            sp, pp = cmp(new, scale(old, 1 - pct / 100.0))
+            if sp > 0: break
+            if pp > threshold: break
+            pct += 1
+        return -(pct - 1)
+    else:
+        pct = 1
+        while pct < 10000:
+            sp, pp = cmp(new, scale(old, 1 + pct / 100.0))
+            if sp < 0: break
+            if pp > threshold: break
+            pct += 1
+        return pct - 1
 
 
 if __name__ == "__main__":
-  new = [0.0, 0.0, 0.0, 0.0] 
-  old = [2.96608e-06, 3.35076e-06, 3.45384e-06, 3.34407e-06]
-  print speedup(new, old, 1e-5)
-  print speedup(old, new, 1e-5)
+    new = [0.0, 0.0, 0.0, 0.0]
+    old = [2.96608e-06, 3.35076e-06, 3.45384e-06, 3.34407e-06]
+    print speedup(new, old, 1e-5)
+    print speedup(old, new, 1e-5)