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ci: 🎡 -o1 & test workers

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This commit is contained in:
Istvan Matejcsok 2026-06-16 12:55:01 +02:00
commit 5df7f40b3c
4 changed files with 55 additions and 14 deletions
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24
scripts/common/apply-asyncify.sh
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@ -128,18 +128,30 @@ if [[ "${ASYNCIFY_ONLY:-0}" == "1" ]]; then
exit 0
fi
# Post-asyncify shrink pass. Asyncify emits deliberately verbose instrumentation
# (spills every live local) and relies on the optimizer to coalesce it back down
# under V8's per-function locals limit — without it, large coroutine-entry
# functions silently stall (and on newer Chromium hard-crash the renderer while
# loading a heavy board) in Chrome's V8. See docs/debugging/DEBUG.md §6-7.
#
# Level is configurable via BINARYEN_OPT_LEVEL: -O1 already runs CoalesceLocals
# and is sufficient (measured: same ~187 MB / 64 MB-gzip output as -O2 on pcbnew,
# validated green on the load-pcb chromium-ci spec — but a lighter, faster pass,
# which is why CI sets -O1). -O2 stays the default for the more thorough rewrite.
# Do NOT use -Os/-Oz here: they break the asyncify runtime (Binaryen #4484).
BINARYEN_OPT_LEVEL="${BINARYEN_OPT_LEVEL:--O2}"
echo ""
echo "Running wasm-opt -O2 on the asyncified wasm..."
echo "Running wasm-opt ${BINARYEN_OPT_LEVEL} on the asyncified wasm..."
echo " Purpose: shrink asyncify-instrumented functions back under V8's"
echo " per-function locals limit (otherwise large coroutine-entry and"
echo " similar functions silently stall in Chrome's V8). See docs/debugging/DEBUG.md §7"
echo " and memory/bundle-size-asyncify-optimization.md."
echo " This pass also takes several minutes and ~10-15 GB RAM."
echo " similar functions stall/crash in Chrome's V8). See docs/debugging/DEBUG.md §6-7."
echo " This pass takes several minutes and ~10-15 GB RAM."
echo " BINARYEN_CORES=${BINARYEN_CORES}"
echo " LD_PRELOAD=${WASM_OPT_PRELOAD:-<none>}"
"${PRELOAD_CMD[@]}" "${TIME_CMD[@]}" "${WASM_OPT}" -O2 "${OUTPUT_WASM}" -o "${OUTPUT_WASM}"
"${PRELOAD_CMD[@]}" "${TIME_CMD[@]}" "${WASM_OPT}" "${BINARYEN_OPT_LEVEL}" "${OUTPUT_WASM}" -o "${OUTPUT_WASM}"
echo ""
echo "Asyncify + -O2 complete: ${OUTPUT_WASM}"
echo "Asyncify + ${BINARYEN_OPT_LEVEL} complete: ${OUTPUT_WASM}"
ls -lh "${OUTPUT_WASM}"