Feat/preprocessor benchmarks#44
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Brainstorm + plan for the preprocessor benchmark suite shipped in the follow-up commit, plus an independent brainstorm capturing the v1 semantic-layer scope decisions for later planning.
Establish a CodSpeed baseline for the preprocessor so future tuning
(include cache, hot-path work) has a measurable signal. Three new bench
groups across two crates:
- oxabl_preprocessor/benches/preprocessor_bench.rs: isolation bench plus
micro-benches for &SCOPED-DEFINE, {&var} substitution, and &IF
evaluation, all driven by InMemoryFileSystem so the measurement is
preprocessor work alone.
- oxabl_parser/benches/parser_bench.rs gains pipeline_with_includes:
tokenize -> preprocess -> parse against an include-heavy fixture with
real disk resolution via RealFileSystem, mirroring the corpus shape
that drops throughput from ~1k to ~70 files/sec.
Synthetic .abl + .i fixtures in resources/ keep the suite hermetic and
reproducible. CodSpeed CI auto-discovers the new [[bench]] target; no
workflow changes.
evanbrobertson
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Apr 17, 2026
Feat/preprocessor benchmarks
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