rsjohnson performance improvements

[rsjohnson94102]

• rsjohnson
• rsjohnson: v2
• rsjohnson: new version
• rsjohnson: Use threads

[codspeed-hq]

Merging this PR will improve performance by ×6.4

⚡ 4 improved benchmarks
❌ 1 regressed benchmark
✅ 1 untouched benchmark

Warning

Please fix the performance issues or acknowledge them on CodSpeed.

Performance Changes

	Benchmark	BASE	HEAD	Efficiency
⚡	test_bench_compute_histogram[solution]	9.4 s	3.6 s	×2.6
⚡	test_bench_find_corruptions[solution]	10,750 ms	191.9 ms	×56
⚡	test_bench_find_corruptions[baseline]	10,661.5 ms	191.6 ms	×56
⚡	test_bench_compute_histogram[baseline]	10.7 s	3.6 s	×2.9
❌	test_bench_find_matches[solution]	5.8 s	13.3 s	-56.6%

Tip

Investigate this regression by commenting @codspeedbot fix this regression on this PR, or directly use the CodSpeed MCP with your agent.

---

_{Comparing rsjohnson94102:rsjohnson3 (9465158) with main (72790a0)}