Find the CI Constraint
Identify the limiting constraint in a test pipeline before optimizing non-bottleneck automation work.
Optimize the release system, not the most annoying test. Look for the weakest link A CI pipeline is a flow system. If the slowest limiting step is staging data setup, optimizing browser selectors will not change release lead time. Measure where work waits, not only where code runs. Exploit before buying capacity Use the current constraint better first. Remove duplicate jobs, stop feeding bad test data into the constrained stage, reserve scarce devices for the checks that need them, and move lower-risk checks earlier or lower in the stack. Subordinate other work Once the constraint is known, the rest of…
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