fix: 98% CPU on WSL2 ARM + 10 correctness fixes#32
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Root cause: unmuzzled scavenger walks entire workdir tree (including .cargo/registry/ with 50K+ files) through WSL2's 9p (10-100x slower). 12-core Oryon oversubscription (24 tokio+rayon threads) amplifies it. Fixes (6): 1. Filter scavenger WalkDir — skip dep/cache dirs (.cargo, .npm, .cache, etc) 2. Muzzle scavenger by default (AtomicBool::new(true)) 3. Adaptive scavenger backoff (double sleep up to 30min if cycle >60s) 4. Skip heal cargo test on WSL2 drvfs (/mnt/ paths) 5. Cap tokio worker threads to 4 (was 12 on 12-core ARM) 6. Cap rayon global pool to 4 threads (was 12) Correctness fixes (4): - e2e_auth_routing: strip RELIARY_UPSTREAM_URL from daemon spawn env - try_prefetch: spawn_blocking for filesystem I/O in SSE hot path - GUARD_CACHE: add 60s TTL eviction to bound memory growth - GATE_VERSION: align to workspace version, remove false '6 mechanisms' claim All 78 unit + 38 e2e tests pass.
alderpath
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Jun 22, 2026
fix: 98% CPU on WSL2 ARM + 10 correctness fixes
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Root Cause
Scavenger walks entire workdir tree (including
.cargo/registry/with 50K+ files) through WSL2's 9p filesystem (10-100x slower). 12-core Oryon oversubscription amplifies it — 24 tokio+rayon threads compete for 12 cores.Fixes (6)
cargo testsubprocess on /mnt/ pathsCorrectness fixes (4)
e2e_auth_routing: stripRELIARY_UPSTREAM_URLfrom daemon spawn envtry_prefetch: wrap filesystem I/O inspawn_blockinginside SSE hot pathGUARD_CACHE: add 60s TTL eviction to bound memory growthGATE_VERSION: align to workspace v0.6.5, remove false '6 mechanisms' claimAll 78 unit + 38 e2e tests pass.