build: pin -std=c11 for instrument-hooks core.c - #84
Merged
not-matthias merged 1 commit intoJun 24, 2026
Merged
CodSpeed HQ / CodSpeed Performance Analysis
failed
Jun 24, 2026 in 0s
Performance Regression: -18.06%
⚠️ 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.
⚠️ Different runtime environments detected
Some benchmarks with significant performance changes were compared across different runtime environments,
which may affect the accuracy of the results.
⚡ 4 improved benchmarks
❌ 10 regressed benchmarks
✅ 224 untouched benchmarks
Warning
Please fix the performance issues or acknowledge them on CodSpeed.
Performance Changes
| Mode | Benchmark | BASE |
HEAD |
Efficiency | |
|---|---|---|---|---|---|
| ❌ | Simulation | switch 1 |
103.1 µs | 313.8 µs | -67.13% |
| ❌ | Memory | wait 500ms |
23 KB | 64.1 KB | -64.1% |
| ❌ | Memory | short body |
536 B | 792 B | -32.32% |
| ❌ | WallTime | short body |
2.5 µs | 3.1 µs | -19.14% |
| ❌ | WallTime | test sync baz 10 |
192 ns | 228 ns | -15.79% |
| ❌ | WallTime | switch 1 |
144 ns | 168 ns | -14.29% |
| ❌ | WallTime | switch 2 |
156 ns | 180 ns | -13.33% |
| ❌ | WallTime | short body |
2.3 µs | 2.6 µs | -11.01% |
| ❌ | WallTime | test sync baz 100 |
312 ns | 348 ns | -10.34% |
| ❌ | WallTime | short body |
1.6 µs | 1.8 µs | -10.14% |
| ⚡ | Memory | wait 1ms |
10 B | 7 B | +42.86% |
| ⚡ | Simulation | wait 500ms |
12.4 ms | 10.2 ms | +21.26% |
| ⚡ | Memory | wait 500ms |
71 KB | 64.1 KB | +10.79% |
| ⚡ | Simulation | wait 1sec |
23.1 ms | 20.8 ms | +10.72% |
Tip
Investigate this regression by commenting @codspeedbot fix this regression on this PR, or directly use the CodSpeed MCP with your agent.
Comparing main (1999ec9) with main (56fa9fc)
Loading