Signed-off-by: Rhys Perry <pendingchao...@gmail.com>
---
nv-report.py | 53 +++++++++++++++++++++++++++++++++++++++++++++++++++--
1 file changed, 51 insertions(+), 2 deletions(-)
diff --git a/nv-report.py b/nv-report.py
index 1c1491af0a..703fcf4571 100644
--- a/nv-report.py
+++ b/nv-report.py
@@ -81,13 +81,16 @@ def read_stats(fname):
return stats
-def diff(a, b):
+def get_diff_percentage(a, b):
percentage = 0.
if a != 0.:
percentage = b * 100. / a - 100.
elif b != 0.:
percentage = float('inf')
- return "%d -> %d (%.2f%%)" % (a, b, percentage)
+ return percentage
+
+def diff(a, b):
+ return "%d -> %d (%.2f%%)" % (a, b, get_diff_percentage(a, b))
def print_summary(before, after, keys, only_affected):
exclude = set()
@@ -133,10 +136,48 @@ def print_helped_hurt(keys, before, after):
print "%10d " % getattr(hurt, attr),
print
+def print_top(before, after, keys, attr, num):
+ candidates = []
+ for key in keys:
+ a = after.stats[key]
+ b = before.stats[key]
+ aa = getattr(a, attr)
+ ba = getattr(b, attr)
+ if aa - ba == 0:
+ continue
+ candidates.append((key, abs(get_diff_percentage(ba, aa)), ba, aa))
+ candidates.sort(key = lambda a: a[1], reverse=True)
+ candidates = candidates[:num]
+
+ print "top %d affected programs for %s" % (num, attr)
+ for key, _, beforestat, afterstat in candidates:
+ print " %s : %s " % (key, diff(beforestat, afterstat))
+
+def print_smallest(before, after, keys, attr, num):
+ candidates = []
+ for key in keys:
+ a = after.stats[key]
+ b = before.stats[key]
+ aa = getattr(a, attr)
+ ba = getattr(b, attr)
+ if aa - ba == 0:
+ continue
+ candidates.append((key, after.stats[key].inst))
+ candidates.sort(key = lambda a: a[1])
+ candidates = candidates[:num]
+
+ print "smallest %d affected programs for %s" % (num, attr)
+ for key, size in candidates:
+ print " %s : %d instructions" % (key, size)
+
def main(argv):
parser = argparse.ArgumentParser(description=DESCRIPTION)
parser.add_argument('before', help="the baseline run")
parser.add_argument('after', help="the run to compare against the
baseline")
+ parser.add_argument('--top', action="append", nargs=2, metavar=("ATTR",
"N"),
+ help="also show the top n programs affected for attr")
+ parser.add_argument('--smallest', action="append", nargs=2,
metavar=("ATTR", "N"),
+ help="also show the smallest n programs affected for attr")
args = parser.parse_args(argv[1:])
before = read_stats(args.before)
@@ -155,6 +196,14 @@ def main(argv):
print
print_helped_hurt(keys, before, after)
+ for attr, num in args.top if args.top else []:
+ print
+ print_top(before, after, keys, attr, int(num))
+
+ for attr, num in args.smallest if args.smallest else []:
+ print
+ print_smallest(before, after, keys, attr, int(num))
+
if __name__ == "__main__":
main(sys.argv)
--
2.14.4
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