blog · release

bunqueue v2.4.6

Ships 3 performance improvements and 2 additions. Event-driven dependency resolution - Replaced 100ms setInterval polling with microtask-coalesced flush triggered on job completion.

egeominotti

To install bunqueue v2.4.6

bun add bunqueue@2.4.6

npm install bunqueue@2.4.6

To upgrade bunqueue

bun add bunqueue@latest

What’s new

• src/benchmark/dependency-latency.bench.ts - Benchmark for dependency chain resolution latency
• src/application/taskErrorTracking.ts - Extracted error tracking for reuse across modules

Performance

• Event-driven dependency resolution - Replaced 100ms setInterval polling with microtask-coalesced flush triggered on job completion. Dependency chain latency drops from hundreds of milliseconds to microseconds:

  Scenario	Before (P50)	After (P50)	Speedup
  Single dep (A→B)	100.05ms	12.5µs	~8,000x
  Chain (4 levels)	300.43ms	28.2µs	~10,700x
  Fan-out (1→5)	100.11ms	31.0µs	~3,200x

• The previous 100ms interval is now a 30s safety fallback. Zero functional changes, zero API changes.

• Bonus: less CPU at idle (no more 10 calls/sec to processPendingDependencies when queue is empty).

Thanks to 1 contributor!

• @egeominotti

---

← bunqueue v2.4.5 · Release on GitHub · Commits since v2.4.5 · Full changelog · All posts