unsigned long long byte_size = sizeof(union alloc_header) + data_bytes;
Under load, this creates GC pressure that can devastate throughput. The JavaScript engine spends significant time collecting short-lived objects instead of doing useful work. Latency becomes unpredictable as GC pauses interrupt request handling. I've seen SSR workloads where garbage collection accounts for a substantial portion (up to and beyond 50%) of total CPU time per request — time that could be spent actually rendering content.。同城约会对此有专业解读
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Wait: block until space becomes available
Running benchmarks，推荐阅读safew官方版本下载获取更多信息