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Discussion on: Performance Comparison, Rust vs Crystal with Redis

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Jamie Gaskins Author

I wrapped the Redis pipeline code to run it 10x in the same process, so it runs 4 million commands in 10 pipelines, but it didn't make any significant changes to how long it took for either app. The results are below, but to summarize: it makes the CPU-time ratio 3.13 CPU seconds for Rust vs 1 CPU second for Crystal, tipping the scales even more in Crystal's favor.

$ time target/release/examples/redis_app
553
543
534
538
540
529
524
532
528
536
target/release/examples/redis_app  2.82s user 0.31s system 49% cpu 6.279 total
$ time bin/bench_redis
00:00:00.324824666
00:00:00.316971548
00:00:00.316958306
00:00:00.316820546
00:00:00.316534462
00:00:00.318077670
00:00:00.322508686
00:00:00.322692871
00:00:00.321157067
00:00:00.315688903
bin/bench_redis  0.94s user 0.06s system 30% cpu 3.298 total