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Performance Triage: Read a Process Snapshot
EasyLinux+ Exam Prep10-20 minThe brief
A box is under load and first responders handed you a captured process snapshot. Triage it. The snapshot is /root/case/ps.txt (a ps aux-style table); your assignment vars are in /root/case/assignment.env.
Report three facts as plain text:
/root/case/top_mem_pid.txt— PID of the process using the most memory (highest RSS)/root/case/top_cpu_pid.txt— PID of the process using the most CPU (highest %CPU)/root/case/count.txt— number of processes owned byTARGET_USER
The snapshot varies per session. See /root/case/brief.txt.
What you'll do
- Parse columnar ps output, skipping the header
- Find the max by a numeric column (RSS, then %CPU)
- Map the winning row back to its PID
- Count processes owned by a specific user
Hands-on lab: you work on a real Linux box in your browser, graded on the machine's actual state.