huntedbytheirs
ff465e981b
SIMD kernels (AVX-512/AVX-2/SSE2, runtime-dispatched) counting a single pass over mmap'd files, split across cores past 8 MiB, with exact GNU oracle parity (NBSP included, glibc's decoder fixed, the whole -m path mirrored so counts agree at every boundary). Result: 1ms vs 2ms at 1M lines, 8-9ms vs 22-24ms at 10M. Forty years of dependencies, hand-tuned AVX-512 assembly, a translation team per language — and gnu wc still needs a buffer to copy into before it can count. We mapped the file and just counted. The benchmark suite no longer has a losing row; the shame report file is going to rust.
37 lines
1012 B
Makefile
37 lines
1012 B
Makefile
AM_CFLAGS = -Wall -Wextra -O2 -pthread
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bin_PROGRAMS = fastwc
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fastwc_SOURCES = src/main.c
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# Release build consumed by benchmarks/ (expects bin/release/fastwc).
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release: all
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$(MKDIR_P) bin/release
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cp -f fastwc bin/release/fastwc
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# Convenience: build the release binary, then run every benchmark suite.
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bench: release
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./benchmarks/test-all.sh
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# --- developer conveniences ---
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# compile_commands.json for clangd (bear if present, else Makefile-derived).
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compile-commands:
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./scripts/gen-compile-commands.sh
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# Make the code confess to the style guide.
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format:
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clang-format -i $(fastwc_SOURCES)
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# Verify the code already confesses, without touching it.
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format-check:
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clang-format --dry-run --Werror $(fastwc_SOURCES)
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# Static analysis via clang-tidy (needs compile_commands.json).
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# Warnings are errors: the style guide is the law.
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lint: compile-commands
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clang-tidy -p . --warnings-as-errors='*' $(fastwc_SOURCES)
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clean-local:
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rm -rf bin
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.PHONY: release bench compile-commands format format-check lint
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