Need to Increase memory space allocated for process

[masterjames]

I want to know if i can increase the memory space allocated for a process manually while the process is running ,,,, and if it is possible how i can do this ,,,

Thanks..

[Irithori]

A process will take as much memory as it needs, unless
- it is limited by it´s own configuration (like for example php: memory_limit = )
- it is limited in limit.conf
- it hits limitations from a 32bit architecture, that means: 4GByte maximum per process, even on PAE kernels

And no, if any of these limitations apply to you, they cannot be changed for a running process.

[Rubberman]

There are C-API functions to do this such as setrlimit(), and commands that will allow you to increase resource limits in user space (applied when an application starts) such as ulimit. However, I am not aware of a command that will allow you to change the limits of a running application external to that application, although it may be possible. I simply don't know what it would be if such exists.