Doesn’t comparing a heavily optimized Redis client for Crystal with an average one in Rust defeated the purpose of the benchmark?
I love Crystal, but I’m not sure how accurate this test might be
If it helps ease your mind, I ran the benchmark code against the other Crystal Redis client I linked in the article, which is not optimized for heap allocations the way mine is. The only differences in the benchmark code are s/::Connection// and s/pipeline/pipelined/. The code is otherwise identical. Here is the result:
$ time bin/bench_redis
00:00:00.354746110
bin/bench_redis 0.17s user 0.03s system 53% cpu 0.372 total
Only about 8% slower overall and 42% slower at the CPU (200ms vs 140ms) for the "average" Crystal Redis client. If Rust and Crystal were actually closer in performance, this is the sort of difference in performance I expected. I actually expected Rust to be within ±30%, but I was off by an entire order of magnitude.
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Doesn’t comparing a heavily optimized Redis client for Crystal with an average one in Rust defeated the purpose of the benchmark?
I love Crystal, but I’m not sure how accurate this test might be
I agree!
The idea that the Rust client, with commits from 63 people and 1500 GitHub stars, has not had any optimizations applied seems a bit presumptuous.
If it helps ease your mind, I ran the benchmark code against the other Crystal Redis client I linked in the article, which is not optimized for heap allocations the way mine is. The only differences in the benchmark code are
s/::Connection//ands/pipeline/pipelined/. The code is otherwise identical. Here is the result:Only about 8% slower overall and 42% slower at the CPU (200ms vs 140ms) for the "average" Crystal Redis client. If Rust and Crystal were actually closer in performance, this is the sort of difference in performance I expected. I actually expected Rust to be within ±30%, but I was off by an entire order of magnitude.