Reports CPU usage of all kernel threads over a period of time.
pprof { time | -I pprof.flow | -i tracefile | -d } [ -T bytes] [ -v ] [ -s ] [ -n ] [ -f ] [ -p ] [ -w ]
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 five 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, trcrpt command, filemon command.
The trcon subroutine, trcstop subroutine.