Snapshot/decouple queue - #59
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Cap the chunked buffer at 100k tasks (maxChunkLen). When reached, submitters block on the handoff channel instead of growing the buffer further, letting workers drain before accepting more work. Benchmark (10M tasks, 20k workers, concurrent submit): peak memory: 1.04 GB → 451 MB (−57%) goroutine stacks (malg): 395 MB → 61 MB mutex contention: 73 MB → 7.5 MB throughput unchanged at ~8.9s
…to snapshot/decouple-queue # Conflicts: # config.go # pool.go # worker.go
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