mirror of
https://github.com/uutils/diffutils.git
synced 2026-06-10 15:48:59 -07:00
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.
51 lines
724 B
TOML
51 lines
724 B
TOML
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[package]
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name = "unified-diff-fuzz"
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version = "0.0.0"
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publish = false
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edition = "2018"
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[package.metadata]
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cargo-fuzz = true
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[dependencies]
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libfuzzer-sys = "0.4.7"
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diffutils = { path = "../" }
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# Prevent this from interfering with workspaces
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[workspace]
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members = ["."]
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[[bin]]
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name = "fuzz_cmp"
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path = "fuzz_targets/fuzz_cmp.rs"
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test = false
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doc = false
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[[bin]]
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name = "fuzz_cmp_args"
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path = "fuzz_targets/fuzz_cmp_args.rs"
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test = false
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doc = false
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[[bin]]
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name = "fuzz_patch"
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path = "fuzz_targets/fuzz_patch.rs"
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test = false
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doc = false
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[[bin]]
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name = "fuzz_normal"
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path = "fuzz_targets/fuzz_normal.rs"
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test = false
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doc = false
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[[bin]]
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name = "fuzz_ed"
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path = "fuzz_targets/fuzz_ed.rs"
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test = false
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doc = false
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