Record with specific event

More perf commands

• Top-like live view
  perf topcopy

  Show live per-function CPU usage (like top)

• Annotate hot functions
  perf annotatecopy

  Show annotated assembly for hottest function

• Flamegraph data collection
  perf record -F 99 -ag -- sleep 30 && perf script > out.perfcopy

  Collect data suitable for flamegraph generation

• Count syscalls
  perf stat -e syscalls:sys_enter_read ./my_appcopy

  Count specific syscall events

• Attach to running process
  perf record -p 1234 sleep 5copy

  Profile an already-running process for 5 seconds

all 17 perf commands →