There is a "bug" in build timlines. The timelines are populated by discrete events. These events may not inherently include the actual total time for a given stage (plan, apply, graph, etc). Ideally we would measure the total time for a given terraform execution stage, then populate the timeline with the discrete events.

See this live example. The stages are:

• init = 11.47s
• plan = 864ms
• graph = 10.06s
• apply = 23.88s

46.27s is the total duration summed, however the timings suggest this took >1m.

Where was the ~14+ seconds taken? Without full stage timings, we are not really sure.

Fix example

This is the exact same build timings, with the stage boundary entry removed in the Before. You can see plan goes from 462ms -> 727ms and apply from 552ms -> 900ms.

Before

After

Future work

• We should be recording more time entries for what is happening inside this missing overhead. This just captures the missing timeline in the overview.
• UI should be reworked to look nicer.
• The graph stage is currently not using this method. Because there is 2 graph stages, and they have to be distinct. Working on this in another PR

UI Demo