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Top Forums UNIX for Dummies Questions & Answers Urgent Help Required ! Please Help Post 302456540 by gpta_varun on Friday 24th of September 2010 12:28:33 PM
Old 09-24-2010
Data Urgent Help Required ! Please Help

HI All ,

Pardon me for asking some very basic questions,
I would be grateful if someone can help.

I am trying to execute a shell script which runs multiple processes in background. It includes various operations like copying , DB operations etc etc.

Now problem is that the complete script execution is taking a long long time, While we have optimized the DB part , I am on the lookout for other culprits.

Iam executing the script on T5K server . When executing multiple processes in background concurrently ....
1) Are all the processes allocated to a single CPU or multiple CPU ?
2) Can there be a possibility that a lot of time is wasted in scheduling the processes ?
 

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KILLALL5(8)						Linux System Administrator's Manual					       KILLALL5(8)

NAME
killall5 -- send a signal to all processes. SYNOPSIS
killall5 -signalnumber [-o omitpid[,omitpid..]] [-o omitpid[,omitpid..]..] DESCRIPTION
killall5 is the SystemV killall command. It sends a signal to all processes except kernel threads and the processes in its own session, so it won't kill the shell that is running the script it was called from. Its primary (only) use is in the rc scripts found in the /etc/init.d directory. OPTIONS
-o omitpid Tells killall5 to omit processes with that process id. NOTES
killall5 can also be invoked as pidof, which is simply a (symbolic) link to the killall5 program. EXIT STATUS
The program return zero if it killed processes. It return 2 if no process were killed, and 1 if it was unable to find any processes (/proc/ is missing). SEE ALSO
halt(8), reboot(8), pidof(8) AUTHOR
Miquel van Smoorenburg, miquels@cistron.nl 04 Nov 2003 KILLALL5(8)
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