Can application stick with same PID once running.

linux833 · 09-04-2012, 06:06 AM

Hello friends,
i have application that i run time to time and need to get same
PID each time it's running. the reason of that it take full CPU and i have to run cpulimit each time and found the PID.

is it possible to configure system to give this application same PID each time it's running.

thanks alot.

linux833.

pan64 · 09-04-2012, 06:09 AM

no, it is not possible. You need another solution. The usual way is to store the actual pid in a file (when you start the process) and use that file to identify the process. (or you can use pgrep)

linux833 · 09-04-2012, 06:21 AM

Quote:

Originally Posted by pan64

no, it is not possible. You need another solution. The usual way is to store the actual pid in a file (when you start the process) and use that file to identify the process. (or you can use pgrep)

Thanks pan64 for your reply,
so, is there automated way to do it instead of each time, as you mention.
could you please guide me for that.

your help is appreciated.

linux833.

pan64 · 09-04-2012, 06:41 AM

see for example daemon

linux833 · 09-04-2012, 06:58 AM

thanks pan64 for your help, i will try to get script to pgrep and execute cpulimit.

thanks again.

linux833

sundialsvcs · 09-04-2012, 09:17 AM

Often it is a good idea to set up a process that "owns" the working-processes as its children. It sets whatever CPU limits etc. that the children may require, and handles such issues as child-dies and so on. (The init process in any Linux system is a good example of a "father daemon" which is dedicated to doing that ... and in fact, a copy of it can be used to do that. "It's just another process.")