Katkat

Optimize QA Benchmarks and Shared HPC Usage

AppleSoftware Engineer · Onsite

Last updated

Optimize QA benchmark turnaround and shared HPC usage by profiling execution, controlling resources, and separating runtime savings from faster reporting.

A Software QA workflow runs benchmarks on shared high-performance computing (HPC) resources. How would you reduce resource usage and shorten turnaround time while preserving trustworthy benchmark results?

Part 1 — Manage shared resources

Consider a script that selects different resource levels during the day and at night. Explain what those levels need to specify and how scheduling or preemption should interact with other workloads.

What This Part Should Cover

  • Measurable CPU, memory, accelerator, and I/O allocations behind a named resource level.
  • Approved quotas, workload interference, fairness, and restartability.
  • The difference between shorter wall-clock time and lower total resource consumption.

Part 2 — Shorten benchmark turnaround

Explain how you would identify and reduce time spent in setup, benchmark execution, and result analysis. Discuss the role of automatically generated XLSX reports and charts.

What This Part Should Cover

  • Profiling the actual critical path before optimizing it.
  • Changes that preserve workload and measurement comparability.
  • Separate evidence for faster execution and faster report preparation.

Follow-up questions

  • When could parallel benchmark execution make results less trustworthy?
  • What would a chart-generation script need to demonstrate before claiming it reduced benchmark execution time?