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hardened_malloc
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output markdown table from calculate_waste

pull/50/head
Daniel Micay 2018-08-26 06:21:09 -04:00
parent 497f71ac65
commit c60fbfb029
1 changed files with 9 additions and 8 deletions
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17
calculate_waste.py
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@ -24,25 +24,26 @@ size_class_slots = [
6, 5, 4, 4 6, 5, 4, 4
] ]
print("size class", "worst case internal fragmentation", sep=", ") fragmentation = [100]
print(16, "100%", sep=", ")
for i in range(len(size_classes) - 1): for i in range(len(size_classes) - 1):
size_class = size_classes[i + 1] size_class = size_classes[i + 1]
worst_case = size_classes[i] + 1 worst_case = size_classes[i] + 1
used = worst_case / size_class used = worst_case / size_class
print(size_class, str(100 - used * 100) + "%", sep=", ") fragmentation.append(100 - used * 100);
def page_align(size): def page_align(size):
return (size + 4095) & ~4095 return (size + 4095) & ~4095
print() print("| ", end="")
print("size class", "slab slots", "slab size", "worst case internal fragmentation for slabs", sep=", ") print("size class", "worst case internal fragmentation", "slab slots", "slab size", "worst case internal fragmentation for slabs", sep=" | ", end=" |\n")
for size, slots in zip(size_classes, size_class_slots): print("| ", end='')
print("-", "-", "-", "-", "-", sep=" | ", end=" |\n")
for size, slots, fragmentation in zip(size_classes, size_class_slots, fragmentation):
used = size * slots used = size * slots
real = page_align(used) real = page_align(used)
print(size, slots, real, str(100 - used / real * 100) + "%", sep=", ") print("| ", end='')
print(size, str(fragmentation) + "%", slots, real, str(100 - used / real * 100) + "%", sep=" | ", end=" |\n")
if len(argv) < 2: if len(argv) < 2:
exit() exit()