Calibre will automatically create snapshots (a series of tests) at allocated intervals. When you create a new site, it will default to being tested every 6 hours. You can change the scheduler to your needs via the Site → Settings → Agent Settings page.
The options are;
- Off: the scheduler will not run for this site. This is useful if you’re creating regular snapshots following deployments or as part of a continuous integration suite.
- Daily, at a given hour: snapshots will be created at a nominated hour, every day.
- Hourly: snapshots will be created every hour of the day.
- Every X Hours: snapshots will be created every 'x' number of hours.