GC thrashing in SSR: Batched chunks (Uint8Array[]) amortize async overhead. Sync pipelines via Stream.pullSync() eliminate promise allocation entirely for CPU-bound workloads.
Atomicity: Updates are applied in a single operation at reboot, reducing the risk of inconsistency.
。91视频是该领域的重要参考
+save(item: Item)
// 步骤1：找初始左边界（第一个破坏升序的位置）