feat: add cuDF C FFI#8236
Merged
Merged
CodSpeed HQ / CodSpeed Performance Analysis
failed
Jun 9, 2026
Performance Regression: -4.31%
⚠️ 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.
⚡ 4 improved benchmarks
❌ 5 regressed benchmarks
✅ 1510 untouched benchmarks
Warning
Please fix the performance issues or acknowledge them on CodSpeed.
Performance Changes
| Mode | Benchmark | BASE |
HEAD |
Efficiency | |
|---|---|---|---|---|---|
| ❌ | Simulation | chunked_varbinview_canonical_into[(1000, 10)] |
163.1 µs | 198.6 µs | -17.87% |
| ❌ | Simulation | chunked_varbinview_into_canonical[(1000, 10)] |
177.1 µs | 213.5 µs | -17.07% |
| ❌ | Simulation | chunked_varbinview_opt_canonical_into[(1000, 10)] |
191.4 µs | 226.9 µs | -15.66% |
| ❌ | Simulation | chunked_varbinview_opt_into_canonical[(1000, 10)] |
205.7 µs | 242 µs | -14.99% |
| ❌ | Simulation | bitwise_not_vortex_buffer_mut[128] |
216.9 ns | 246.1 ns | -11.85% |
| ⚡ | Simulation | chunked_varbinview_canonical_into[(100, 100)] |
311.3 µs | 276.1 µs | +12.75% |
| ⚡ | Simulation | encode_varbin[(1000, 32)] |
168.3 µs | 150.4 µs | +11.92% |
| ⚡ | Simulation | encode_varbin[(1000, 8)] |
162.2 µs | 145 µs | +11.85% |
| ⚡ | Simulation | chunked_varbinview_into_canonical[(100, 100)] |
363.2 µs | 328.1 µs | +10.7% |
Tip
Investigate this regression by commenting @codspeedbot fix this regression on this PR, or directly use the CodSpeed MCP with your agent.
Comparing ad/cudf-c-ffi (363b4ec) with develop (d650cab)
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