Right now roundup's web interface serves file content by loading the entirety of the content into memory, then writes that to the user. This gets very inefficient for large files.

There are contexts in which much more efficient methods could be used. For example:

If roundup runs with mod_python, and if the to-be-served content is stored in the database as a file, roundup could in fact serve the file by apache's 'sendfile' API.

That would allow any apache optimizations that are around to kick in.

Such an enhancement may also solve enhancement request 1719713.