Reports CPU usage of all kernel threads over a period of time.
pprof { time | -i input_file | -d } [ -T bytes] [ -s ] [ -n ] [ -f ] [ -p ]
The pprof command reports on all kernel threads running within an interval using the trace utility. The raw process information is saved to Pprof.flow and 5 reports are generated. The pprof command can also take previously generated Pprof.flow to regenerate reports. If no flags are specified, all reports are generated.
Types of Reports
| pprof.cpu | Lists all kernel level threads sorted by actual cpu time. Contains: Process Name, Process ID, Parent Process ID, Process State at Beginning and End, Thread ID, Parent Thread ID, Actual CPU Time, Start Time, Stop Time, Stop - Start |
| pprof.start | Lists all kernel threads sorted by start time. Contains: Process Name, Process ID, Parent Process ID, Process State Beginning and End, Thread ID, Parent Thread ID, Actual CPU Time, Start Time, Stop Time, Stop - Start |
| pprof.namecpu | Lists information about each type of kernel thread (all executable with the same name). Contains: Process Name, Number of Threads, CPU Time, % of Total CPU Time |
| pprof.famind | Lists all processes grouped by families (processes with a common ancestor). Child process names are indented with respect to the parent. Contains: Start Time, Stop Time, Actual CPU Time, Process ID, Parent Process ID, Thread ID, Parent Thread ID, Process State at Beginning and End, Level, Process Name. |
| pprof.famcpu | Lists the information for all families (processes with a common ancestor). The Process Name and Process ID for the family is not necessarily the ancestor. Contains: Start Time, Process Name, Process ID, Number of Threads, Total CPU Time. |
Note: Review the /usr/lpp/perfagent/README.perfagent.tools file for the latest on changes to the performance analysis tools.
The trace command.
The trcon subroutine, and trcstop command.