Build Queue_

The build queue is a list of builds that were Build Trigger and are waiting to be started. TeamCity will distribute them to Agent Requirements build agents as the agents become idle. The build is assigned to the agent only when it is started on the agent, no pre-assignment is made while the build still waits in the build queue.

When a build is triggered, firstly it is placed into the build queue, and, when a compatible agent becomes idle, TeamCity will run the build.

You can reorder the builds by dragging them up and down in the list on the Build Queue page.

For every build in the Queue, TeamCity attempts to estimate time for build completion. Such estimates are counted basing on duration of the previous builds of the same configuration and on the duration of builds previously run on the same build agent. Build estimates are shown in a tooltip that appears if you rest on the cursor over the icon in the Time to start column. For some builds, like the builds that have never been run before, TeamCity can't estimate possible duration correctly, so the relevant message will be displayed in the tooltip, for example: