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.
75 lines
2.1 KiB
YAML
75 lines
2.1 KiB
YAML
name: Fuzzing
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# spell-checker:ignore fuzzer
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on:
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pull_request:
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push:
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branches:
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- main
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permissions:
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contents: read
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concurrency:
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group: ${{ github.workflow }}-${{ github.ref }}
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cancel-in-progress: ${{ github.ref != 'refs/heads/main' }}
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jobs:
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fuzz-build:
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name: Build the fuzzers
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runs-on: ubuntu-latest
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steps:
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- uses: actions/checkout@v4
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- uses: dtolnay/rust-toolchain@nightly
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- name: Install `cargo-fuzz`
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run: cargo install cargo-fuzz
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- uses: Swatinem/rust-cache@v2
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with:
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shared-key: "cargo-fuzz-cache-key"
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cache-directories: "fuzz/target"
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- name: Run `cargo-fuzz build`
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run: cargo +nightly fuzz build
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fuzz-run:
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needs: fuzz-build
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name: Run the fuzzers
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runs-on: ubuntu-latest
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timeout-minutes: 5
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env:
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RUN_FOR: 60
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strategy:
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matrix:
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test-target:
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- { name: fuzz_cmp, should_pass: true }
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- { name: fuzz_cmp_args, should_pass: true }
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- { name: fuzz_ed, should_pass: true }
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- { name: fuzz_normal, should_pass: true }
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- { name: fuzz_patch, should_pass: true }
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steps:
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- uses: actions/checkout@v4
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- uses: dtolnay/rust-toolchain@nightly
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- name: Install `cargo-fuzz`
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run: cargo install cargo-fuzz
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- uses: Swatinem/rust-cache@v2
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with:
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shared-key: "cargo-fuzz-cache-key"
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cache-directories: "fuzz/target"
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- name: Restore Cached Corpus
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uses: actions/cache/restore@v4
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with:
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key: corpus-cache-${{ matrix.test-target.name }}
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path: |
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fuzz/corpus/${{ matrix.test-target.name }}
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- name: Run ${{ matrix.test-target.name }} for XX seconds
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shell: bash
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continue-on-error: ${{ !matrix.test-target.name.should_pass }}
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run: |
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cargo +nightly fuzz run ${{ matrix.test-target.name }} -- -max_total_time=${{ env.RUN_FOR }} -detect_leaks=0
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- name: Save Corpus Cache
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uses: actions/cache/save@v4
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with:
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key: corpus-cache-${{ matrix.test-target.name }}
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path: |
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fuzz/corpus/${{ matrix.test-target.name }}
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