Is it more CPU-efficient to read/write config file or read/write sqlite database?

[Irmen de Jong]

On 14-12-2013 16:29, JL wrote:
> I have a number of python processes which communicate with each other through
> writing/reading config text files. The python ConfigParser is used. I am wondering if
> it is more CPU-efficient to switch to using sqlite database instead of using
> configuration files. If the software does plenty of reading/writing, is it more
> efficient to use config text files or sqlite database?
> 
> Thank you.
> 

I think you're asking the wrong question...
Both options will very likely be constrained by I/O instead of CPU (in other words: do
you know for certain that you have a CPU-bottleneck right now?)
But both of them aren't well suited for inter process communication. Especially the
"reading/writing config files" sounds particularly sketchy.

Take a look at the myriad of options for *proper* inter-process communication (if that
is what you're after). It also helps to describe your situation in more detail so we can
give better answers.

Cheers,
Irmen