medium10 pts · first answer countslinuxperfperformance

Which function burns the CPU

A native service uses 100% of a core. Which tool samples it to show which functions use the most CPU, with low overhead?

A.perf top -p <pid>B.strace -c -f -p <pid>C.lsof -p <pid> -r 1D.netstat -tp | grep <pid>

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