ARM Accredited Engineer EN0-001 Question # 56 Topic 6 Discussion
EN0-001 Exam Topic 6 Question 56 Discussion:
Question #: 56
Topic #: 6
A deeply embedded real-time industrial control system is missing some hard real-time interrupt deadlines. Which of the following performance analysis techniques is the most suitable for identifying which routines are causing the problem?
A.
Use an ETM instruction trace profiler, which outputs information about the program as it runs
B.
Add some serial logging to the software, which outputs information about the program as it runs
C.
Add a new interrupt handler, which is triggered off a timer, and dump information about the interrupted process
D.
Use a JTAG sample-based profiler, which periodically halts the CPU, and dumps information about the interrupted process
Chosen Answer:
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