feat: add experimental onpair string encoding
#8144
Merged
CodSpeed HQ / CodSpeed Performance Analysis
failed
Jun 1, 2026
Performance Regression: -15.06%
⚠️ Unknown Walltime execution environment detected
Using the Walltime instrument on standard Hosted Runners will lead to inconsistent data.
For the most accurate results, we recommend using CodSpeed Macro Runners: bare-metal machines fine-tuned for performance measurement consistency.
⚡ 1 improved benchmark
❌ 5 regressed benchmarks
✅ 1269 untouched benchmarks
Warning
Please fix the performance issues or acknowledge them on CodSpeed.
Performance Changes
| Mode | Benchmark | BASE |
HEAD |
Efficiency | |
|---|---|---|---|---|---|
| ❌ | Simulation | baseline_lt[16, 65536] |
217.4 µs | 303.3 µs | -28.3% |
| ❌ | Simulation | baseline_lt[4, 65536] |
200.7 µs | 258.5 µs | -22.36% |
| ❌ | Simulation | baseline_eq[4, 65536] |
184.9 µs | 237 µs | -21.98% |
| ❌ | Simulation | fast_lt_out_of_range[16, 65536] |
207.9 µs | 235.4 µs | -11.68% |
| ❌ | Simulation | baseline_eq[16, 65536] |
229.7 µs | 259.5 µs | -11.47% |
| ⚡ | Simulation | bitwise_not_vortex_buffer_mut[128] |
304.4 ns | 275.3 ns | +10.6% |
Tip
Investigate this regression by commenting @codspeedbot fix this regression on this PR, or directly use the CodSpeed MCP with your agent.
Comparing onpair-encoding (7b86a0f) with develop (0e7619b)
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