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-rwxr-xr-xtools/profiling/microbenchmarks/bm_diff/bm_speedup.py10
1 files changed, 4 insertions, 6 deletions
diff --git a/tools/profiling/microbenchmarks/bm_diff/bm_speedup.py b/tools/profiling/microbenchmarks/bm_diff/bm_speedup.py
index 3d126efa62..5bff8d0ca9 100755
--- a/tools/profiling/microbenchmarks/bm_diff/bm_speedup.py
+++ b/tools/profiling/microbenchmarks/bm_diff/bm_speedup.py
@@ -17,8 +17,6 @@
from scipy import stats
import math
-_THRESHOLD = 1e-10
-
def scale(a, mul):
return [x * mul for x in a]
@@ -28,18 +26,18 @@ def cmp(a, b):
return stats.ttest_ind(a, b)
-def speedup(new, old):
+def speedup(new, old, 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 p0 > threshold: return 0
if s0 < 0:
pct = 1
while pct < 101:
sp, pp = cmp(new, scale(old, 1 - pct / 100.0))
if sp > 0: break
- if pp > _THRESHOLD: break
+ if pp > threshold: break
pct += 1
return -(pct - 1)
else:
@@ -47,7 +45,7 @@ def speedup(new, old):
while pct < 100000:
sp, pp = cmp(new, scale(old, 1 + pct / 100.0))
if sp < 0: break
- if pp > _THRESHOLD: break
+ if pp > threshold: break
pct += 1
return pct - 1