fixed errors

region_size.py

@@ -14,25 +14,34 @@
 total = 0
 
 for line in f.read().splitlines():
-    if re.search("allocation request:.*source concurrent humongous allocation", line) is not None:
+    if re.search("allocation request:.*source: concurrent humongous allocation", line) is not None:
         total += 1
         req = re.search("allocation request: [0-9]+", line).group()
         allocations.append(int(re.search(r"[0-9]+", req).group()))
 
 print(f"found {total} humongous objects in {log}")
 
-# humongous allocations occur when the request is >= 1/2 the region size
-
-mb2 = sum(map(lambda x: x < 1*ONEMB), allocations)
-mb4 = sum(map(lambda x: x < 2*ONEMB), allocations)
-mb8 = sum(map(lambda x: x < 4*ONEMB), allocations)
-mb16 = sum(map(lambda x: x < 8*ONEMB), allocations)
-mb32 = sum(map(lambda x: x < 16*ONEMB), allocations)
-mbMax = sum(map(lambda x: x >= 16*ONEMB), allocations)
-
-print(f"{100*mb2/total}% would not be humongous with a 2mb region size (-XX:G1HeapRegionSize)")
-print(f"{100*mb2/total}% would not be humongous with a 4mb region size")
-print(f"{100*mb2/total}% would not be humongous with a 8mb region size")
-print(f"{100*mb2/total}% would not be humongous with a 16mb region size")
-print(f"{100*mb2/total}% would not be humongous with a 32mb region size")
-print(f"{100*mb2/total}% would remain humongous with a 32mb region size")
+
+if len(allocations) > 0:
+    # humongous allocations occur when the request is >= 1/2 the region size
+
+    mb2 = sum(map(lambda x: x < 1*ONEMB, allocations))
+    mb4 = sum(map(lambda x: x < 2*ONEMB, allocations))
+    mb8 = sum(map(lambda x: x < 4*ONEMB, allocations))
+    mb16 = sum(map(lambda x: x < 8*ONEMB, allocations))
+    mb32 = sum(map(lambda x: x < 16*ONEMB, allocations))
+    mbMax = sum(map(lambda x: x >= 16*ONEMB, allocations))
+
+    print(f"{mb2/total:.2%} would not be humongous with a 2mb region size (-XX:G1HeapRegionSize)")
+    print(f"{mb4/total:.2%} would not be humongous with a 4mb region size")
+    print(f"{mb8/total:.2%} would not be humongous with a 8mb region size")
+    print(f"{mb16/total:.2%} would not be humongous with a 16mb region size")
+    print(f"{mb32/total:.2%} would not be humongous with a 32mb region size")
+    print(f"{mb32/total:.2%} would remain humongous with a 32mb region size")
+
+
+#Total created bytes 	1.88 gb
+#Total promoted bytes 	n/a
+#Avg creation rate 	4.33 mb/sec
+#Avg promotion rate 	n/a
+