Deploy frequency

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Deploy frequency
Deploy frequency measures how often you deploy changes to a given target environment. Along with Change lead time, Deploy frequency is a measure of speed (whereas Change failure rate and MTTR are measures of quality, or stability)  
Once you've configured your deployment to let Sleuth know when you deploy, Sleuth will use those events to determine your deploy frequency for all code deployments and feature flags you've setup within a project and environment. 
Sleuth's Project Metrics and Team Metrics dashboards show the total number of deploys and the frequency, deploys per day, in the selected period. The deploys per day statistic is calculated by taking the total number of deploys divided by the total number of days in the period, weekends included. 
For more on how Sleuth measures Deploy frequency, check out Sleuth CTO, Don Brown, explaining it in detail in this SleuthTV episode!
Sleuth CTO Don Brown explains how Sleuth measures Deploy frequency
Batch Size Breakdowns
In order to help you better contextualize your deploy frequency, Sleuth also provides a detailed breakdown of the batch size of each deploy as a percentage of the total and broken down per day. Batch size is defined as a blend of the number of pull requests, the number of commits, and the amount of code changed, weighted in that order. Batch sizes are defined as:
Small - usually 1 pull request, 1 - 10 commits and a few hundred lines of code changed
Medium - usually 1 - 2 pull requests, 10 - 30 commits and many hundreds of lines of code changed
Large - usually 2 - 4 pull requests, 20 - 40 commits and many hundreds of lines of code changed
Gigantic - usually 4 or more pull requests or 30 or more commits or many thousands of lines of code changed
Because batch size is a weighted blend of pull requests, commits and code changes, you may find that an especially large amount of change in any of those elements can cause a deploy to be classified as Large or Gigantic.
Feature flags and Deploy frequency
Sleuth supports feature flags as a first class form of change. That said, we find that teams want to understand the distinction between their code deploy frequency and their flag change frequency. Sleuth's Project Metrics and Team Metrics dashboards show the two frequencies as separate graph lines and allows you to toggle one or the other on and off. To see totals for flag frequency you can hover over a data point.
Setting up Deploy frequency
Sleuth uses our code integrations (Github, Bitbucket, Gitlab, etc) coupled with our deployment tracking to understand when you've deployed. Once you've connected your code to Sleuth, setup your first code deployment and started registering deploys Sleuth will automatically track your deploy frequency and batch size breakdown for each deploy to each of your defined Environments.
Sleuth uses our LaunchDarkly integration to track feature flag changes. Once setup, we'll automatically start tracking your flag frequency across each of your defined Environments.
For the most accurate metrics we recommend using one of our native CI/CD integrations or a webhook to register your deploys. Initially, Sleuth is configured to count a pull request merge as a deploy until we've received your first integrated deployment notification.
Further Reading
For additional information on how Sleuth calculates and presents Deploy frequency and other DORA metrics throughout its various dashboards and views, see Interpreting metrics in Sleuth.
DORA metrics
Change lead time
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Batch Size Breakdowns
Feature flags and Deploy frequency
Setting up Deploy frequency