# Performance Report: 4.2.20

**Generated:** 2026-01-23T20:41:23Z
**Pipeline:** [#12241](https://git.unturf.com/engineering/unturf/un-inception/-/pipelines/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) |

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## Test Duration by Language

The primary performance metric - how long each language takes to run its full test suite (15 tests per language).

![Duration by Language](chart-duration-by-language.png)

**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

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## Compiled vs Interpreted

Comparing performance between compiled languages (C, Go, Rust, etc.) and interpreted languages (Python, Ruby, JavaScript, etc.).

![Category Comparison](chart-category-comparison.png)

**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

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## Duration Distribution

Histogram showing how test durations are distributed across all 43 languages.

![Duration Histogram](chart-duration-histogram.png)

**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)

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## Speed Leaders

Side-by-side comparison of the 10 slowest and 10 fastest languages.

![Speed Leaders](chart-speed-leaders.png)

**Slowest (left):** JAVA, ZIG, COBOL, PERL, HASKELL
**Fastest (right):** CRYSTAL, DENO, V, R, CSHARP

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## Queue vs Execution Time

Scatter plot showing the relationship between CI queue wait time and actual test execution time.

![Queue vs Execution](chart-queue-vs-execution.png)

**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

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## Dashboard

Summary dashboard combining key metrics and visualizations.

![Dashboard](chart-dashboard.png)

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## 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 |

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*Report generated by UN Inception CI pipeline*