How do you make a large PowerShell pipeline faster without making it harder to trust?
Documentation: Microsoft Learn
Speed up PowerShell pipelines by measuring queries, filtering at the source, reducing remote calls, and comparing results with a known baseline.
Interview · Question 29 of 34
Answer before reveal
Your draft
Write the answer you would give in an interview. The model answer stays hidden until you have drafted at least a short response.
A strong answer
Measure first, reduce data at the source, request only required properties, prefer server-side filters, avoid repeated remote calls inside loops, and compare the optimized result with a known-correct baseline.
Show it concretely
1PS> Measure-Command { Get-ADUser -Filter * -Properties Department -ResultSetSize 1000 }
Expect this follow-up
When would ForEach-Object -Parallel make performance worse?
