Linux — System Performance Analysis — CPU Profiling: https://compassinbabel.org/post/e77e475f-f465-413f-bbbe-69ef434fec33
Table of Content
- Introduction
- Related Readings
- A Template for CPU Profiling
- Get the number of CPUs on a machine
- Check the CPU utilization
- Check ongoing hot processes
- Check cumulative CPU utilization of processes
- Linux perf tool
- Process Profiling
- Collect process performance stats 20 times/second in the 10 seconds period.
- Generate process performance reports
- Get the time line of events of a process
- CPU Scheduler Profiling
- Record a scheduler profile for 10 seconds
- Show per-process scheduler latency from a scheduler profile:
- List per-event scheduler latency from a scheduler profile
- Other Recipes
- How to check the CPU run-queue length?
