Thanks for your response!
So I would start writing the stuff... but I'm afraid it would be then limited to the functions that I'm using for my site, and of course some explanations depend on the theme that I'm using 😄
My VPS only has 512MB memory. So, I want to know which one uses more memory.
It literally stores everything in memory.
@yariplus Thanks for your reply.
But I read some articles. It says that MongoDB need to be hosted on a separated host. So, It seems that MongoDB need more memory. I have no idea of which one is right.
Since you're using a VPS, you have enough permissions to install mongodb on that very server. I don't see why it would require you to host on a different host.
Thanks for your help !
I have read this post. Both of you are right.