Which GC strategy reduces latency spikes under concurrent async workloads in Nim?
Goal Determine whether Nim’s experimental ARC garbage collector can consistently reduce the stop‑the‑world latency that appears only when many async requests overlap, compared to the default Boehm GC. Constraints ARC is experimental and not fully supported on all platforms; the async runtime is single‑threaded by default, so GC pauses dominate latency spikes