CTA CTA Performance Optimization & Best Practices 2

Question 1

A CTA architect is troubleshooting unexpectedly long test cycle times. Which TestStand built-in tool helps identify which steps consume the most time?

Accepted Answer

Execution Profiler / Execution Time Tracking

Answer

TestStand's Execution Profiler (execution time tracking) records elapsed time per step, making it straightforward to identify the slowest steps in a sequence.

Question 2

Which strategy reduces contention when multiple test sockets write results to the same SQL Server database simultaneously?

Accepted Answer

Use optimistic concurrency with row-level locking and connection pooling

Answer

Connection pooling combined with row-level locking and optimistic concurrency allows multiple sockets to write in parallel without excessive blocking.

Question 3

What is a 'sequence hierarchy' best practice for improving reusability across multiple test programs in TestStand?

Accepted Answer

Build a shared library of common sub-sequences stored in a central location referenced by all test programs

Answer

Centralizing common sub-sequences in a shared library and referencing them from multiple test programs avoids duplication and ensures updates propagate everywhere.

Question 4

Which TestStand execution optimization reduces overhead when using the LabVIEW adapter by keeping the LabVIEW application server connection open?

Accepted Answer

Persistent LabVIEW application instance (Open Application Reference once per session)

Answer

Opening the LabVIEW application reference once at session start and reusing it eliminates the connection setup overhead on every test step call.

Question 5

A CTA architect wants to detect memory leaks in a long-running TestStand station application. What is the most direct approach?

Accepted Answer

Use NI Memory Monitor or Windows Performance Monitor to track engine memory growth over time

Answer

Monitoring the TestStand engine process memory over time with NI Memory Monitor or Windows Performance Monitor reveals gradual growth indicative of a leak.

(CTA) Certified TestStand Architect Practice Test

(CTA) Certified TestStand Architect Practice Test

CTA CTA Performance Optimization & Best Practices 2