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UNIX for Dummies Questions & Answers
About wait
Post 302189569 by ramen_noodle on Saturday 26th of April 2008 01:39:13 PM
04-26-2008
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Hi,
is-it normal to have 86% of CPU for wait commande :
ps aux| head -20
UTIL PID %CPU %MEM SZ RSS TTY STAT STIME TIME COMMAND
root 516 86,6 0,0 12 12 - A 02 nov 2088:03 wait
oralfa01 54422 4,6 1,0 68044 39868 - A 09:20:06 2:27 oracleALFA01
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:cool:
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Did not use 'wait' yet.
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can any one please give me clear idea of wait process in UNIX system.
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Can someone explain what is the status says WAIT on performance monitoring
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Hi Gurus,
Some questions regarding wait. I have tried searching in this forum for threads on wait but not completely got what I am looking for.
Background:
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Hi,
I am facing a strange issue,
when i call a script from my while loop in background it doesnt go in background, despite the wait i put below the whil loop it goes forward even before the process put in background is completed.
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do
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Hi,
written a script which uses wait as follows
Main.sh
#!/usr/bin/ksh
nohup scrpit1 1 &
pid_1=$!
nohup scrpit1 2 &
pid_2=$!
wait $pid_1
wait $pid_2
nohup scrpit1 3 &
pid_1=$!
nohup scrpit1 4 & (1 Reply)
Discussion started by: krux_rap
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LEARN ABOUT REDHAT
setsid
SETSID(2) Linux Programmer's Manual SETSID(2) NAME
setsid - creates a session and sets the process group ID SYNOPSIS
#include <unistd.h> pid_t setsid(void); DESCRIPTION
setsid() creates a new session if the calling process is not a process group leader. The calling process is the leader of the new session, the process group leader of the new process group, and has no controlling tty. The process group ID and session ID of the calling process are set to the PID of the calling process. The calling process will be the only process in this new process group and in this new session. RETURN VALUE
The session ID of the calling process. ERRORS
On error, -1 will be returned. The only error which can happen is EPERM. It is returned when the process group ID of any process equals the PID of the calling process. Thus, in particular, setsid fails if the calling process is already a process group leader. NOTES
A process group leader is a process with process group ID equal to its PID. In order to be sure that setsid will succeed, fork and exit, and have the child do setsid(). CONFORMING TO
POSIX, SVr4. SEE ALSO
setpgid(2), setpgrp(2) Linux 1.0.0 1994-08-27 SETSID(2)