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49 lines
1.1 KiB
Python
Executable file
49 lines
1.1 KiB
Python
Executable file
#!/usr/bin/env python3
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# there's far better ways to do this but its 4am and i dont wanna think
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# just pypy it my dude
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import math
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def humansize(sz, terse=False):
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for unit in ["B", "KiB", "MiB", "GiB", "TiB"]:
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if sz < 1024:
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break
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sz /= 1024.0
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ret = " ".join([str(sz)[:4].rstrip("."), unit])
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if not terse:
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return ret
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return ret.replace("iB", "").replace(" ", "")
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def up2k_chunksize(filesize):
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chunksize = 1024 * 1024
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stepsize = 512 * 1024
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while True:
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for mul in [1, 2]:
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nchunks = math.ceil(filesize * 1.0 / chunksize)
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if nchunks <= 256 or (chunksize >= 32 * 1024 * 1024 and nchunks <= 4096):
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return chunksize
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chunksize += stepsize
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stepsize *= mul
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def main():
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prev = 1048576
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n = n0 = 524288
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while True:
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csz = up2k_chunksize(n)
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if csz > prev:
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print(f"| {n-n0:>18_} | {humansize(n-n0):>8} | {prev:>13_} | {humansize(prev):>8} |".replace("_", " "))
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prev = csz
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n += n0
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main()
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