Use sar to view historical CPU performance. How do you identify a past CPU bottleneck over the last 2 hours?
How can you make a runtime change to /proc/sys using sysctl for nested parameters?
You need to identify a process that is consuming high CPU on a RHEL system using ps. How do you find and sort processes by CPU usage?
Using top, how can you identify a memory leak in a running application?
You want to monitor a specific process’s CPU and memory usage in real-time using top. How do you do this?
How can you use Valgrind to detect memory leaks in a C/C++ binary on RHEL?
