1Wait3(3)              User Contributed Perl Documentation             Wait3(3)
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NAME

6       Proc::Wait3 - Perl extension for wait3 system call
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SYNOPSIS

9         use Proc::Wait3;
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11         ($pid, $status, $utime, $stime, $maxrss, $ixrss, $idrss, $isrss,
12         $minflt, $majflt, $nswap, $inblock, $oublock, $msgsnd, $msgrcv,
13         $nsignals, $nvcsw, $nivcsw) = wait3(0); # doesn't wait
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15         ($pid, $status, $utime, $stime, $maxrss, $ixrss, $idrss, $isrss,
16         $minflt, $majflt, $nswap, $inblock, $oublock, $msgsnd, $msgrcv,
17         $nsignals, $nvcsw, $nivcsw) = wait3(1); # waits for a child
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DESCRIPTION

20       If any child processes have exited, this call will "reap" the zombies
21       similar to the perl "wait" function.
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23       By default, it will return immediately and if there are no dead
24       children, everything will be undefined.  If you pass in a true
25       argument, it will block until a child exits (or it gets a signal).
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27        $pid         PID of exiting child
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29        $status      exit status of child, just like C<$?>
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31        $utime       floating point user cpu seconds
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33        $stime       floating point system cpu seconds
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35        $maxrss      the maximum resident set size utilized (in kilobytes).
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37        $minflt      the number of page faults serviced without any I/O
38                     activity; here I/O activity is avoided by "reclaiming" a
39                     page frame from the list of pages awaiting reallocation.
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41        $majflt      the number of page faults serviced that required I/O
42                     activity.
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44        $nswap       the number of times a process was "swapped" out of main
45                     memory.
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47        $inblock     the number of times the file system had to perform input.
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49        $oublock     the number of times the file system had to perform output.
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51        $msgsnd      the number of messages sent over sockets.
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53        $msgrcv      the number of messages received from sockets.
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55        $nsignals    the number of signals delivered.
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57        $nvcsw       the number of times a context switch resulted due to a
58                     process voluntarily giving up the processor before its
59                     time slice was completed (usually to await availability of
60                     a resource).
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62        $nivcsw      the number of times a context switch resulted due to a
63                     higher priority process becoming runnable or because the
64                     current process exceeded its time slice.
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AUTHOR

67       C. Tilmes <curt@tilmes.org>
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LICENSE

70       This is free software; you can redistribute it and/or modify it under
71       the same terms as the Perl 5 programming language system itself.
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SEE ALSO

74       perl, wait3, getrusage.
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78perl v5.38.0                      2023-07-21                          Wait3(3)
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