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---
description: "Learn how long your open merge requests have spent in code review, and what distinguishes the longest-running." # Up to ~200 chars long. They will be displayed in Google Search snippets. It may help to write the page intro first, and then reuse it here.
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stage: Manage
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group: Optimize
info: To determine the technical writer assigned to the Stage/Group associated with this page, see https://about.gitlab.com/handbook/engineering/ux/technical-writing/#assignments
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---
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# Code Review Analytics **(PREMIUM)**
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> - [Introduced](https://gitlab.com/gitlab-org/gitlab/-/issues/38062) in GitLab 12.7.
> - Moved to GitLab Premium in 13.9.
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Use Code Review Analytics to view the longest-running reviews among open merge
requests, and:
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- Take action on individual merge requests.
- Reduce overall cycle time.
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NOTE:
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Initially, no data appears. Data is populated as users comment on open merge requests.
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## Overview
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Code Review Analytics is available to users with at least the Reporter [role ](../permissions.md ), and displays a table of open merge requests that have at least one non-author comment. The review time is measured from the time the first non-author comment was submitted.
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To access Code Review Analytics, from your project's menu, go to **Analytics > Code Review** .
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You can filter the list of merge requests by milestone and label.
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The table is sorted by:
- **Review time**: Helping you to quickly find the longest-running reviews which may need intervention
or to be broken down into smaller parts.
- Other columns: Display the author, approvers, comment count, and line change (-/+) counts.
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## Use cases
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This feature is designed for [development team leaders ](https://about.gitlab.com/handbook/marketing/strategic-marketing/roles-personas/#delaney-development-team-lead )
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and others who want to understand broad code review dynamics, and identify patterns to explain them.
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You can use Code Review Analytics to:
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- Expose your team's unique challenges with code review.
- Identify improvements that might substantially accelerate your development cycle.
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- Your team agrees that code review is moving too slow.
- The [Value Stream Analytics feature ](value_stream_analytics.md ) shows that reviews are your team's most time-consuming step.
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- Analyze the patterns and trends of different types of work that are moving slow.
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For example:
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- Lots of comments or commits? Maybe the code is too complex.
- A particular author is involved? Maybe more training is required.
- Few comments and approvers? Maybe your team is understaffed.
