Memory footprint

[eldad87]

Hey,
Can you please introduce an option not to use cache to decrease memory footprint?

My idea is to place the db files in a ram-disk and by doing so to avoid NodeJS 2G memory limitation.

Thanks!

[louischatriot]

Hello,

That's not possible to not use the cache as all find operations do not use the disk. That's also a very big change which I feel is outside of NeDB's scope so I will review a PR if any but I won't do it.

I'm curious as to how a ramdisk can avoid Nodejs' 2GB limitation though, I wouldn't have thought it was possible ?

[eldad87]

http://askubuntu.com/questions/152868/how-do-i-make-a-ram-disk

[louischatriot]

I was not asking how to make a ramdisk :) I just don't see how you can use it to bypass Node.js' 2GB heap limoitation. In my opinion that's just not possible. We'll have to wait for improvements to the V8

[Ivshti]

I guess @eldad87's idea is to modify NeDB to load documents directly from the DB file instead of keeping all documents in memory. Then, you can copy the DB file to a ramdisk at start-up.

[louischatriot]

OK. My point is that whatever we do, NeDB's needs the documents to be in memory to perform find operations. There are of course ways to avoid that but it's a lot of work and totally outside of NeDB's scope. If anyone tries it I'll happily review a PR though :)