Diagnosing CPU bottlenecks, memory leaks, and I/O latency in production Linux environments relies on an essential suite of open-source profiling tools.

Essential Debugging Commands Cheatsheet

Linux Profiling Commandsbash
# Trace syscall execution for a process
strace -c -p <pid>
 
# Profile CPU sampling counters and generate flamegraph data
sudo perf record -F 99 -g -p <pid> -- sleep 10
sudo perf report
 
# Detect C/C++ memory leaks via Valgrind
valgrind --leak-check=full ./myapp