Most forum software don’t need any where as much RAM as this. I was wondering what Discourse uses this RAM for? Is it doing a powerful amount of caching or what?

You can’t fit that much awesome into 512mb

You can’t fit that much awesome into 512mb …using Ruby. :wink:

Maybe this is the reason, perhaps? https://blog.engineyard.com/2009/thats-not-a-memory-leak-its-bloat Could it be ActiveRecord that is wasting all this memory?

I would not use blog entries from 4 years ago as representative of the way things are today in the world of programming and technology. Memory requirements will be a bit higher on some stacks than others. Remember that Discourse, as we say many times on http://www.discourse.org is built for the nex…

While that’s all true, cloud hosting is generally ram limited. They charge for ram pretty much linearly so doubling the memory footprint doubles the costs if you’re on the cloud like I am. Since your plan is to get into the hosting business for discourse this might affect you someday.

“Need” is not the correct word i’d say. I’ve successfully installed and ran it on an 512MB VPS from DO(1GB RAM and 3GB swap was NOT needed, atleast not for me). The issues would probably arise when you have more people on the forums.

While I understand the whole “preparing for the next decade of the Internet” thing, 1 GB of RAM minimum is still a pretty aggressive and expensive requirement, especially for smaller forums. It may be $10 a month on DO but that’s twice what I pay now for a 512MB setup with 3 php-based forums on it t…

I agree with @lukelarris . Especially for small forums/discourse instances with less than 100 users, this is a very hard requirement. It’s clear that discourse is build to scale up to a huge userbase, but it would be helpful for spreading this great technology if it would require less RAM for very sm…

Why does Discourse need 1 GB of RAM?

Support Self-hosting

sebastiansito (Sebastian Sito) Janvier 30, 2014, 9:11 4

RUBY - RAM Usage Beyond Y-axis

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Why does Discourse need 1 GB of RAM?

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