I'm not sure I believe your benchmarks, honestly. They are way slower than the C++ version. But I don't really have a horse in the race as simdjson-go is its ow

I'm not sure I believe your benchmarks, honestly. They are way slower than the C++ version. But I don't really have a horse in the race as simdjson-go is its own thing. Still, I'm mildly surprised that a byte-by-byte parser is the same speed as a SIMD approach, and usually when someone tells me this, the answer is usually that they buggered up the benchmarking. I would suggest comparing your numbers to the simdjson paper or whatever brag numbers simdjson-go has as a reality check; one of us is clearly wrong. The use of parallelism in simdjson is the use of SIMD instructions, not multiple cores. So the answer is "no" to the second question.