Messages in this thread | | | Date | Sat, 07 Apr 2007 16:45:55 +0900 | From | Satoru Takeuchi <> | Subject | Re: [BUG] scheduler: first timeslice of the exiting thread |
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At Sat, 07 Apr 2007 16:31:39 +0900, Satoru Takeuchi wrote: > Test programs(attached in the mail): > > - satprocess.c: Process model. It creates a child process and wait for it > several times. Each child process exits immediately. > - satthread.c: Thread model. It creates a child thread and join it several > times. Each child thread exits immediately. > - fork_exit.stp: systemtap script to overlook satprocess/satthread
Oh, I sent a old systemtap script. Correct one is here.
Satoru
/// fork_exit.stp ///////////////////////////////////////////////////////////// /* * fork_exit.stp - Overlooks sched_fork()/exit_exit() for satprocess/satthread * and prints some information * * Copyright (C) 2007 Satoru Takeuchi <takeuchi_satoru@jp.fujitsu.com> * * This software may be used and distributed according to the terms * of the GNU General Public License, incorporated herein by reference. */
function is_my_testpro(comm) { if (comm == "satthread" || comm == "satprocess") return 1 else return 0 }
function print_log(name, pid, tgid, ppid, time_slice) { printf("%s: pid = %d, tgid = %d, ppid = %d, time_slice = %u\n", name, pid, tgid, ppid, time_slice); }
probe kernel.function("sched_fork") { if (is_my_testpro(kernel_string($p->comm))) print_log("fork", $p->pid, $p->tgid, $p->parent->pid, $p->time_slice); }
probe kernel.function("sched_exit") { if (is_my_testpro(kernel_string($p->comm))) print_log("exit", $p->pid, $p->tgid, $p->parent->pid, $p->time_slice); } - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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