Sponsored Content
Full Discussion: processes
Top Forums UNIX for Advanced & Expert Users processes Post 6008 by rwb1959 on Tuesday 28th of August 2001 11:27:09 AM
Old 08-28-2001
zombies

"zombie" processes do not consume any CPU or
memory whatsoever. The only system resource they
consume is a slot in the process table.
zombies typically occurr when some process
terminates abnormally and it's parent no longer
exists or the process itself is a process group
leader. You may want to check the man page
on the wait(2) system call or the wait(1)
command (in the case of a shell script).

You might want to find out what is causing
these zombies and eliminate the problem at the
source. In any case, removeing zombies will not
do anything to increase performance for the
reason stated above.
 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

co-processes

Is it possible to have a main script (i will call it main.ksh) that executes say, 4 other scripts (sub_prog_1.ksh, sub_prog_2.ksh etc..) from within this main.ksh (simultaneously/in parallel), have them run in the background and communicate back to main.ksh when complete? My guess is to use... (1 Reply)
Discussion started by: google
1 Replies

2. UNIX for Dummies Questions & Answers

processes

What command string will locate ONLY the PID of a process and ouput only the number of PID of the process? (1 Reply)
Discussion started by: mma_buc_98
1 Replies

3. Shell Programming and Scripting

I need some example of Co-Processes

I want to know how to work the Co-Processes in kornshell scripts. So, I very need some script about Co-Processes! thanks ...:) (3 Replies)
Discussion started by: javalee
3 Replies

4. Filesystems, Disks and Memory

processes

write a program create two processes to run a for loop which adds numbers 1 to n , say one process adds odd numbers and other adds even numbers (1 Reply)
Discussion started by: jayaram_miryabb
1 Replies

5. Shell Programming and Scripting

Processes

I have a file like this. No. State Query Times User Processed Syslog 1 ready idle 973s 0 /Application/ugsvols/bldata01/logs/imanscript1562.syslog 2 ready idle 803s 83997 13 /Application/ugsvols/bldata01/logs/imanscript1542.syslog 3 ready idle 2954s 106641... (17 Replies)
Discussion started by: Krrishv
17 Replies

6. UNIX for Advanced & Expert Users

Monitoring Processes - Killing hung processes

Is there a way to monitor certain processes and if they hang too long to kill them, but certain scripts which are expected to take a long time to let them go? Thank you Richard (4 Replies)
Discussion started by: ukndoit
4 Replies

7. Solaris

Identifying and grouping OS processes and APP processes

Hi Is there an easy way to identify and group currently running processes into OS processes and APP processes. Not all applications are installed as packages. Any free tools or scripts to do this? Many thanks. (2 Replies)
Discussion started by: wilsonee
2 Replies

8. UNIX for Dummies Questions & Answers

Processes

Hi all, I needed a little help. It's OS thing. Suppose I have 2 machine connect over a network, I will call my machines as M1and M2. If I copy a files from M1 to M2. What tasks are these two machine performing for copy to work. My assumption is that M1 is performing read action and... (1 Reply)
Discussion started by: vishwesh
1 Replies

9. Shell Programming and Scripting

Finding the age of a unix process, killing old processes, killing zombie processes

I had issues with processes locking up. This script checks for processes and kills them if they are older than a certain time. Its uses some functions you'll need to define or remove, like slog() which I use for logging, and is_running() which checks if this script is already running so you can... (0 Replies)
Discussion started by: sukerman
0 Replies

10. UNIX for Dummies Questions & Answers

processes

may i know a command to find processes not attached to a terminal?? (1 Reply)
Discussion started by: riya9
1 Replies
killall(8)						      System Manager's Manual							killall(8)

NAME
killall - Terminates all processes started by the user, except the calling process SYNOPSIS
/usr/sbin/killall [- | [-]signal_name | -signal_number] /usr/sbin/killall -l FLAGS
The hyphen character (without an argument) sends a SIGTERM signal initially and then sends a SIGKILL signal to all processes that survive for 30 seconds after receipt of the first signal. This gives processes that catch the SIGTERM signal an opportunity to clean up. A signal name, optionally preceded by a hyphen, sends the specified signal to processes. The hyphen character (with a signal number argument) sends the specified signal, either a name, stripped of the SIG prefix (such as KILL), or a number (such as 9). For information about signal names and numbers, see the signal() system call. In the System V habitat, the optional signal number does not have to be preceded with a hyphen (-). Lists signal names in numerical order (as given in the /usr/include/signal.h file), stripped of the common SIG prefix. DESCRIPTION
This command provides a convenient means of killing all processes created by the shell that you control. When started by the superuser, the killall command kills all processes that can be terminated, except those processes that started it, the kernel processes, and processes 0 and 1 (init). Security Configuration This command is modified in all security configurations of the system. EXAMPLES
To stop all background processes that have started, enter: killall This sends all background processes signal 9 (the kill signal, also called SIGKILL). To stop all background processes, giving them a chance to clean up, enter: killall - This sends signal 15 (SIGTERM), waits 30 seconds, and then sends signal 9 (SIGKILL). To send a specific signal to the background processes, enter: killall -2 This sends signal 2 (SIGINT) to the background processes. To list the signal names in numerical order, stripped of the SIG prefix, enter: killall -l This displays a list of signals, which may vary from system to system. FILES
Specifies the command path RELATED INFORMATION
Calls: kill(2), sigaction(2), signal(2) delim off killall(8)
All times are GMT -4. The time now is 09:04 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy