# CPU Profile Analysis — 250 RPS

**Captured:** 2026-05-14 12:30:51 CEST
**Profile duration:** 60s wall-clock, total samples = 66.57s (110.95% CPU utilization)
**Platform:** Darwin arm64

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## Top 10 functions by flat CPU time

| Rank | Function | Flat % | Cumulative % |
|------|----------|-------:|-------------:|
| 1 | `regexp.(*machine).add` | 12.90 % | 16.06 % |
| 2 | `regexp.(*machine).step` | 5.03 % | 9.03 % |
| 3 | `regexp.(*Regexp).tryBacktrack` | 4.90 % | 9.00 % |
| 4 | `internal/corazawaf.(*Rule).doEvaluate` | 4.10 % | 75.14 % |
| 5 | `strings.ToLower` | 3.76 % | 4.52 % |
| 6 | `regexp/syntax.(*Inst).MatchRunePos` | 2.57 % | 3.70 % |
| 7 | `runtime.memmove` | 2.15 % | 2.15 % |
| 8 | `internal/runtime/syscall/linux.Syscall6` | 2.01 % | 2.01 % |
| 9 | `runtime.futex` | 1.86 % | 1.86 % |
| 10 | `memeqbody` | 1.85 % | 1.85 % |

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## Top 10 functions by cumulative CPU time

| Rank | Function | Flat % | Cumulative % |
|------|----------|-------:|-------------:|
| 1 | `net/http.(*conn).serve` | 0.03 % | 88.88 % |
| 2 | `net/http.serverHandler.ServeHTTP` | 0.03 % | 85.53 % |
| 3 | `modules/caddyhttp.(*Server).ServeHTTP` | 0.03 % | 85.50 % |
| 4 | `modules/caddyhttp.(*Server).serveHTTP` | 0.03 % | 84.66 % |
| 5 | `modules/caddyhttp.HandlerFunc.ServeHTTP` | 0.04 % | 84.63 % |
| 6 | `modules/caddyhttp.(*App).Provision.(*Server).wrapPrimaryRoute.func2` | 0.03 % | 84.59 % |
| 7 | `modules/caddyhttp.(*Server).enforcementHandler` | 0.01 % | 84.56 % |
| 8 | `modules/caddyhttp.RouteList.Compile.wrapRoute.func1.1` | 0.06 % | 84.54 % |
| 9 | `modules/caddyhttp.(*metricsInstrumentedRoute).ServeHTTP` | 0.04 % | 84.47 % |
| 10 | `modules/caddyhttp.(*Route).ProvisionHandlers.wrapMiddleware.func1.1` | 0.00 % | 84.11 % |

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*Auto-generated by `scripts/profile_analyze.py` from `cpu_250.pprof`.*