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Claude
7c3c59f5f8
Target selection (SPEC §6): comrak 0.53.0 (45c1995, BSD-2-Clause) and tokei 14.0.0 (fa44e51, MIT/Apache-2.0); both CPU-bound with pinned corpora (progit book 11MB; 8x replicated pinned trees, 221MB) and committed MANIFEST.sha256 + golden-output pins + regen scripts. Calibration: A/A null verdicts on both real workloads; taskset -c 2 pinning tightens the A/A CI from [0.938, 1.008] to [0.993, 1.008], making the 2% accept threshold meaningful in this container. Profiles (callgrind; perf unavailable): comrak allocator symbols 26.7% of Ir; tokei perform_multi_line_analysis 31.7%. Attempts (ledger + results/phase0/): - comrak class-1 target-cpu=native: null [0.983, 1.011], rejected-bench - comrak class-2 mimalloc swap: +4.6% [1.033, 1.058], 848 upstream tests green, golden byte-identical, ASan-proper clean; LSan flags 484B in onig (reachability false-positive analysis in case study) -> needs-human-review per SPEC §8 - tokei class-1 fat LTO+cgu=1: +1.6% [1.003, 1.026], real but under the 2% bar, rejected-bench Also: ledger-cli for manual rows, targets/ excluded from trust-layer workspace, corpora/build artifacts gitignored, case study written. Phase 0 exit criteria (>=10% verified win) not yet met; next hypotheses logged in results/phase0/attempts.md. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01EcKPWQ3MQD4NdEHwar96u2
40 lines
1.2 KiB
Diff
40 lines
1.2 KiB
Diff
diff --git a/Cargo.toml b/Cargo.toml
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index bd1dfe9..fcc70f3 100644
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--- a/Cargo.toml
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+++ b/Cargo.toml
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@@ -69,7 +69,7 @@ phf_codegen = "0.13"
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[features]
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default = ["cli", "syntect-onig", "bon"]
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-cli = ["clap", "bon", "shell-words", "xdg", "fmt2io", "shortcodes", "phoenix_heex", "attributes"]
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+cli = ["clap", "bon", "shell-words", "xdg", "fmt2io", "shortcodes", "phoenix_heex", "attributes", "mimalloc"]
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shortcodes = ["emojis"]
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phoenix_heex = []
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attributes = []
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@@ -107,6 +107,7 @@ clap = { version = "4", optional = true, features = [
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"string",
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"wrap_help",
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] }
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+mimalloc = { version = "0.1", optional = true }
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[[example]]
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name = "syntect"
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diff --git a/src/main.rs b/src/main.rs
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index 6c5b2a6..a439fb7 100644
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--- a/src/main.rs
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+++ b/src/main.rs
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@@ -10,6 +10,13 @@ use std::{boxed::Box, io::BufWriter};
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use clap::{Parser, ValueEnum};
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+// The CLI churns many small AST allocations; mimalloc services them with
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+// far fewer instructions than glibc malloc. Library consumers are
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+// unaffected: this only applies to the comrak binary.
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+#[cfg(not(target_arch = "wasm32"))]
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+#[global_allocator]
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+static GLOBAL: mimalloc::MiMalloc = mimalloc::MiMalloc;
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+
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use comrak::options;
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use comrak::{Arena, Options};
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#[cfg(feature = "syntect")]
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