> ## Documentation Index
> Fetch the complete documentation index at: https://docs.devperform.io/llms.txt
> Use this file to discover all available pages before exploring further.

# The Open Benchmark

> Live industry percentile benchmarks computed daily from ~200 curated public open-source repositories.

The **Open Benchmark** publishes live industry percentiles for the core delivery metrics — computed daily from a curated set of public open-source repositories, and served openly so anyone can see how the wider open-source world ships software. It's the population-level companion to the [free single-repo benchmark](/metrics/benchmark): one gives you the industry distribution, the other scores a repo you paste in.

## What it measures

Percentiles are published for four delivery metrics:

| Metric                   | What it is                                                            |
| ------------------------ | --------------------------------------------------------------------- |
| **Cycle time**           | Median hours from PR opened to merged                                 |
| **Time to first review** | Median hours from PR opened to the first non-author review or comment |
| **PR size**              | Median lines changed per merged PR                                    |
| **Merge frequency**      | Merged PRs per week                                                   |

## Where the numbers come from

* **\~200 curated public repositories.** The panel is a hand-picked set of active, well-known open-source projects — each one **API-verified** as a real, public repository before it counts toward the distribution.
* **Refreshed daily.** DevPerform recomputes the panel's metrics every day, so the published percentiles track the current state of the set rather than a one-time snapshot.
* **Public metadata only.** The benchmark reads public pull-request metadata via the host API — no source code, and **no personal data** of any kind. It's repository-level metadata, nothing tied to an individual.

The percentiles are available from the public app endpoint:

```
GET /api/public/benchmark/industry
```

## How to read it honestly

The panel is built from **public open-source repositories, and those skew differently from a private team's repos.** Open-source work tends toward larger contributor pools, asynchronous review across time zones, and drive-by contributions — all of which pull cycle time, review latency, and PR size in directions that a co-located product team wouldn't see. Treat the Open Benchmark as a **directional reference for the open-source population**, not a target line for your team.

For a comparison that actually reflects *your* code, run your own repository through the [free benchmark](https://devperform.io/benchmark) at **devperform.io/benchmark** — it scores a single repo against published industry bands in seconds, no signup required.

<Note>
  The Open Benchmark reflects public open-source repositories, which ship differently than private team repos. Use it to understand the open-source distribution; use the [free benchmark](https://devperform.io/benchmark) to see where a specific repo lands.
</Note>