" Suppose the average message size is 1KB, then big queue can concurrently producing and consuming 166K message per second on a commodity machine / the throughput is only limited by disk IO bandwidth. / automatic paging & swapping algorithm, only most-recently accessed data is kept in memory. "
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The Design of A Big, Fast, and Persistent Queue - Abstraction Builder
mmap (メモリマップトファイル) : kei@sodan
