mirror of
https://github.com/uutils/diffutils.git
synced 2026-05-08 06:59:57 -04:00
Gustavo Noronha Silva
50057412bd
The utility should support all the arguments supported by GNU cmp and
perform slightly better.
On a "bad" scenario, ~36M files which are completely different, our
version runs in ~72% of the time of the original on my M1 Max:
> hyperfine --warmup 1 -i --output=pipe \
'cmp -l huge huge.3'
Benchmark 1: cmp -l huge huge.3
Time (mean ± σ): 3.237 s ± 0.014 s [User: 2.891 s, System: 0.341 s]
Range (min … max): 3.221 s … 3.271 s 10 runs
Warning: Ignoring non-zero exit code.
> hyperfine --warmup 1 -i --output=pipe \
'../target/release/diffutils cmp -l huge huge.3'
Benchmark 1: ../target/release/diffutils cmp -l huge huge.3
Time (mean ± σ): 2.392 s ± 0.009 s [User: 1.978 s, System: 0.406 s]
Range (min … max): 2.378 s … 2.406 s 10 runs
Warning: Ignoring non-zero exit code.
Our cmp runs in ~116% of the time when comparing libxul.so to the
chromium-browser binary with -l and -b. In a best case scenario of
comparing 2 files which are the same except for the last byte, our
tool is slightly faster.
37 lines
645 B
Plaintext
37 lines
645 B
Plaintext
"-l"
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"--verbose"
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"-b"
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"--print-bytes"
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"-lb"
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"-bl"
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"-n"
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"--bytes"
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"--bytes="
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"--bytes=1024"
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"--bytes=99999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999"
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"-i"
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"--ignore-initial"
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"--ignore-initial="
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"--ignore-initial=1024"
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"--ignore-initial=99999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999:9999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999"
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"-s"
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"-q"
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"--quiet"
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"--silent"
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"-"
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"--"
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"1kB"
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"1G"
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"1GB"
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"1T"
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"1TB"
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"1P"
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"1PB"
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"1Z"
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"1ZB"
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"1Y"
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"1YB"
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"1Y"
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"0"
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"1:2"
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