CTA Performance Optimization & Best Practices Flashcards
6 cards from real CTA practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 CTA Performance Optimization & Best Practices flashcards as text
A CTA architect is troubleshooting unexpectedly long test cycle times. Which TestStand built-in tool helps identify which steps consume the most time?
Answer: Execution Profiler / Execution Time Tracking
TestStand's Execution Profiler (execution time tracking) records elapsed time per step, making it straightforward to identify the slowest steps in a sequence.
Which strategy reduces contention when multiple test sockets write results to the same SQL Server database simultaneously?
Answer: Use optimistic concurrency with row-level locking and connection pooling
Connection pooling combined with row-level locking and optimistic concurrency allows multiple sockets to write in parallel without excessive blocking.
What is a 'sequence hierarchy' best practice for improving reusability across multiple test programs in TestStand?
Answer: Build a shared library of common sub-sequences stored in a central location referenced by all test programs
Centralizing common sub-sequences in a shared library and referencing them from multiple test programs avoids duplication and ensures updates propagate everywhere.
Which TestStand execution optimization reduces overhead when using the LabVIEW adapter by keeping the LabVIEW application server connection open?
Answer: Persistent LabVIEW application instance (Open Application Reference once per session)
Opening the LabVIEW application reference once at session start and reusing it eliminates the connection setup overhead on every test step call.
A CTA architect wants to detect memory leaks in a long-running TestStand station application. What is the most direct approach?
Answer: Use NI Memory Monitor or Windows Performance Monitor to track engine memory growth over time
Monitoring the TestStand engine process memory over time with NI Memory Monitor or Windows Performance Monitor reveals gradual growth indicative of a leak.
Which TestStand best practice prevents accidental loss of unsaved sequence file edits during a power failure?
Answer: Enable Auto-Save at a short interval in Sequence File Options
Enabling Auto-Save with a short interval in Sequence File Options causes TestStand to periodically write a backup, limiting the maximum data loss to one auto-save interval.