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auditbt.meta
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auditbt.stp
622
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auditbt.tcl
79
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chng_cpu.meta
775
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chng_cpu.stp
1.02
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chng_cpu.tcl
140
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cycle_thief.meta
1.06
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cycle_thief.stp
2.83
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cycle_thief.txt
5.83
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errsnoop.meta
575
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errsnoop.stp
1015
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forktracker.meta
525
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forktracker.stp
601
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futexes.meta
520
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futexes.stp
1.09
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futexes.txt
944
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futexes2.meta
593
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futexes2.stp
1.97
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ltrace.meta
314
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ltrace.stp
2.94
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ltrace.tcl
122
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migrate.meta
746
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migrate.stp
1.01
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mutex-contention.meta
479
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mutex-contention.stp
5.43
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mutex-contention.tcl
79
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noptrace.meta
512
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noptrace.stp
1.98
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noptrace.txt
1.18
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pfiles.meta
450
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pfiles.stp
23.14
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plimit.meta
387
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plimit.stp
2.96
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proc_snoop.stp
1.11
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proc_snoop_parser.xml
818
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proc_snoop_parser_instructions...
2.13
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procmod_watcher.meta
657
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procmod_watcher.stp
2.35
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proctop.meta
601
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proctop.stp
4.15
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proctop.txt
8.45
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psig.meta
354
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psig.stp
5.48
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pstrace_exec.meta
545
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pstrace_exec.stp
465
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pstree.meta
455
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pstree.stp
1.91
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rlimit_nofile.meta
319
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rlimit_nofile.stp
1.12
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sched-latency.meta
470
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sched-latency.stp
508
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sched-latency.txt
1.53
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schedtimes.meta
814
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schedtimes.stp
3.84
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schedtimes.txt
3.2
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semop-watch.meta
267
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semop-watch.stp
795
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sig_by_pid.meta
357
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sig_by_pid.stp
1.04
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sig_by_pid.txt
1.48
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sig_by_proc.meta
364
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sig_by_proc.stp
839
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sig_by_proc.txt
951
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sigkill.meta
560
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sigkill.stp
656
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sigmon.meta
669
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sigmon.stp
932
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sleepingBeauties.meta
581
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sleepingBeauties.stp
1.33
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sleepingBeauties.tcl
140
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sleeptime.meta
601
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sleeptime.stp
1.2
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spawn_seeker.meta
854
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spawn_seeker.stp
1.49
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spawn_seeker.txt
1.29
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strace.meta
385
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strace.stp
2.03
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strace.txt
3.59
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syscalls_by_pid.meta
514
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syscalls_by_pid.stp
623
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syscalls_by_pid.txt
597
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syscalls_by_proc.meta
531
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syscalls_by_proc.stp
677
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syscalls_by_proc.txt
1.1
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syscalltimes
6.14
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syscalltimes.meta
454
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syscalltimes.txt
11.19
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thread-business.meta
346
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thread-business.stp
866
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thread-business.txt
2.76
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threadstacks.meta
585
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threadstacks.stp
1.43
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threadstacks.tcl
79
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wait4time.meta
658
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wait4time.stp
1.32
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Code Editor : schedtimes.stp
#!/usr/bin/stap ############################################################ # Schedtimes.stp # # Copyright (C) 2009, 2014 Red Hat, Inc. # # This program is free software you can redistribute it and/or modify # it under the terms of the GNU General Public License version 2 as # published by the Free Software Foundation. # Authors: Jason Baron <jbaron@redhat.com> # Josh Stone <jistone@redhat.com> # profiles threads and displays their run times, queued times, # wait times, including i/o wait times. # Has two modes. When no arguments are given it profiles all # threads. Alternatively, you can pass -c "program name" ############################################################ //constants global DEAD=-1, RUNNING=1, QUEUED=2, SLEEPING=3 global run_time, queued_time, sleep_time, iowait_time global pid_state, pid_names // For new enough kernels, roughly 2.6.32+, the @defined(@task->in_iowait) // tests will succeed and reduce these macros to nothing, including these // pid-iowait arrays. For older kernels, the rq fallback will remain. global pid_in_iowait global pid_iowait_count @define in_iowait(task) %( @choose_defined(@task->in_iowait, (pid_in_iowait[@task->pid] ? pid_in_iowait[@task->pid]-- : 0)) %) @define clear_iowait(rq, task) %( if (!@defined(@task->in_iowait)) pid_iowait_count[@task->pid] = @nr_iowait(@rq) %) @define set_iowait(rq, task) %( if (!@defined(@task->in_iowait)) pid_in_iowait[@task->pid] = (@nr_iowait(@rq) > pid_iowait_count[@task->pid]) %) @define nr_iowait(rq) %( atomic_read(&@cast(@rq, "rq")->nr_iowait) %) global previous_timestamp function timestamp() { return cpu_clock_us(0) } function update_times(pid, now) { delta = now - previous_timestamp[pid] previous_timestamp[pid] = now if ((state = pid_state[pid]) > 0) { if (state == SLEEPING) sleep_time[pid] += delta else if (state == QUEUED) queued_time[pid] += delta else if (state == RUNNING) run_time[pid] += delta } return delta } function task_targeted(task) { pid = task_pid(task) if (pid && (!target() || target_set_pid(pid))) { pid_names[task_tid(task)] = task_execname(task) return 1 } return 0 } // Update the task name after exec probe kernel.trace("sched_process_exec")!, kprocess.exec_complete { if (tid() in pid_names) pid_names[tid()] = execname() } probe kernel.trace("sched_switch") { // Task $prev is scheduled off this cpu if (task_targeted($prev)) { pid = $prev->pid state = $prev->state update_times(pid, timestamp()) if (state > 0) { @set_iowait($rq, $prev) pid_state[pid] = SLEEPING } else if (state == 0) { pid_state[pid] = QUEUED } else { pid_state[pid] = DEAD } } // Task $next is scheduled onto this cpu if (task_targeted($next)) { pid = $next->pid update_times(pid, timestamp()) @clear_iowait($rq, $next) pid_state[pid] = RUNNING } } probe kernel.trace("sched_wakeup") { // Task $p is awakened if (@choose_defined($success, 1) && task_targeted($p)) { pid = $p->pid delta = update_times(pid, timestamp()) if (pid_state[pid] == SLEEPING && @in_iowait($p)) { iowait_time[pid] += delta } pid_state[pid] = QUEUED } } // Give task $p a final accounting probe kernel.trace("sched_process_exit") { if (task_targeted($p)) { pid = $p->pid update_times(pid, timestamp()) pid_state[pid] = DEAD } } probe end { t = timestamp() printf ("\n%16s: %6s %10s %10s %10s %10s %10s\n\n", "execname", "pid", "run(us)", "sleep(us)", "iowait(us)", "queued(us)", "total(us)") foreach (pid+ in pid_state) { update_times(pid, t) printf("%16s: %6d %10d %10d %10d %10d %10d\n", pid_names[pid], pid, run_time[pid], sleep_time[pid], iowait_time[pid], queued_time[pid], (run_time[pid] + sleep_time[pid] + queued_time[pid])) } }
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