Performance, reliability, and resource governance Improve performance without silently changing the task. Reviewed: 2026-10-03 Source-based teaching example · Fictional data Narration: Microsoft Mark · locally synthesized 00:00:00.000 — What you will learn Improve performance without silently changing the task. Visual description: Improve performance without silently changing the task. 00:00:06.417 — The idea Measure speed and quality together. Set resource and action limits. If a limit prevents completion, report that outcome rather than quietly dropping a required feature. Visual description: Measure speed and quality together. Set resource and action limits. If a limit prevents completion, report that outcome rather than quietly dropping a required feature. 00:00:20.542 — One useful term Resource budget. The allowed work, time or capacity for a request or workflow. Visual description: The allowed work, time or capacity for a request or workflow. 00:00:29.500 — A worked example The simulated trace worsens after the queue grows. A concurrency change improves the measured p95 while quality stays within the declared tolerance. Requests over the tool budget stop rather than crossing the limit. Visual description: The simulated trace worsens after the queue grows. A concurrency change improves the measured p95 while quality stays within the declared tolerance. Requests over the tool budget stop rather than crossing the limit. 00:00:46.625 — Your turn to think Can a faster result count if it silently leaves out a required feature? Pause and decide before continuing. Visual description: Can a faster result count if it silently leaves out a required feature? Pause the video if you need more time. 00:01:04.583 — Why this answer works No. Keep the task comparable. A handful of timings illustrates arithmetic, not rare-event reliability. Visual description: No. Keep the task comparable. A handful of timings illustrates arithmetic, not rare-event reliability. 00:01:15.458 — Check 1 Check quality alongside speed. Visual description: Check quality alongside speed. 00:01:20.542 — Check 2 Enforce limits without hidden omissions. Visual description: Enforce limits without hidden omissions. 00:01:26.000 — Check 3 Disclose changed inputs and small samples. Visual description: Disclose changed inputs and small samples. 00:01:31.750 — Now try a different case Open the lesson and try its different practice case. Use every check in the full task. Watching alone does not mark the lesson complete. Visual description: Open the lesson Try the new case Check and revise The full task and its requirements are in the linked lesson.