3.6 KiB
Performance Report: 4.2.20
Generated: 2026-01-23T20:41:23Z Pipeline: #12241
Summary
| Metric | Value |
|---|---|
| Total Tests | 685 |
| Passed | 685 |
| Failed | 0 |
| Pass Rate | 100.0% |
| Languages | 43 |
| Avg Duration | 114s |
| Slowest | java (272s) |
| Fastest | crystal (49s) |
Test Duration by Language
The primary performance metric - how long each language takes to run its full test suite (15 tests per language).
Key observations:
- JAVA and ZIG are outliers at 90+ seconds
- Most languages cluster between 20-40 seconds
- Compiled languages (red) tend to be faster than interpreted (blue)
- CRYSTAL is the fastest at 49 seconds
Compiled vs Interpreted
Comparing performance between compiled languages (C, Go, Rust, etc.) and interpreted languages (Python, Ruby, JavaScript, etc.).
Findings:
- 20 compiled languages vs 22 interpreted
- Compiled languages have lower median execution time
- Interpreted languages show more variance (wider spread)
- The white diamond marks the mean for each category
Duration Distribution
Histogram showing how test durations are distributed across all 43 languages.
Distribution analysis:
- Most languages complete in 20-35 seconds (the peak)
- Mean (green dashed) and median (blue dotted) are close together
- Long tail on the right from slow outliers (java, zig)
Speed Leaders
Side-by-side comparison of the 10 slowest and 10 fastest languages.
Slowest (left): JAVA, ZIG, COBOL, PERL, HASKELL Fastest (right): CRYSTAL, DENO, V, R, CSHARP
Queue vs Execution Time
Scatter plot showing the relationship between CI queue wait time and actual test execution time.
Notes:
- Queue time is how long the job waited for a runner
- Most jobs had similar queue times (clustered vertically)
- Outliers labeled - java and zig took longest to execute regardless of queue time
Dashboard
Summary dashboard combining key metrics and visualizations.
Raw Data
Per-Language Performance
| Language | Status | Duration |
|---|---|---|
| java | Passed | 272s |
| zig | Passed | 224s |
| cobol | Passed | 198s |
| perl | Passed | 191s |
| haskell | Passed | 187s |
| bash | Passed | 186s |
| objc | Passed | 155s |
| raku | Passed | 154s |
| elixir | Passed | 150s |
| awk | Passed | 145s |
| c | Passed | 144s |
| rust | Passed | 142s |
| fortran | Passed | 139s |
| typescript | Passed | 138s |
| lua | Passed | 133s |
| dart | Passed | 127s |
| go | Passed | 126s |
| kotlin | Passed | 109s |
| cpp | Passed | 107s |
| nim | Passed | 103s |
| d | Passed | 99s |
| commonlisp | Passed | 99s |
| ocaml | Passed | 98s |
| dotnet | Passed | 94s |
| prolog | Passed | 91s |
| ruby | Passed | 89s |
| python | Passed | 88s |
| javascript | Passed | 87s |
| julia | Passed | 86s |
| php | Passed | 84s |
| tcl | Passed | 80s |
| erlang | Passed | 79s |
| scheme | Passed | 75s |
| groovy | Passed | 75s |
| clojure | Passed | 75s |
| fsharp | Passed | 73s |
| forth | Passed | 73s |
| powershell | Passed | 72s |
| csharp | Passed | 58s |
| r | Passed | 57s |
| v | Passed | 56s |
| deno | Passed | 56s |
| crystal | Passed | 49s |
Report generated by UN Inception CI pipeline