Re: Org element cache in indirect buffers

[Ihor Radchenko <yantar92@posteo.net>]

Sebastian Wålinder <s.walinder@gmail.com> writes:

> It appears that indirect buffers duplicate the entire org element cache from the base buffer whenever created.

Not exactly. Only link to the cache root is copied and some cache
elements may not be garbage-collected.

> Running `memory-report` indicates that each indirect buffer has the same memory blueprint.

> This becomes a massive issue with large org files.
>
> My in my 160 000 line org file, the org element cache takes 100 mb, and so each new indirect buffer consumes an additional 100 mbs of memory.

This has to be a bug in `memory-report'. Most of the cache elements will
be referenced by link and thus there should be double-counting going on somewhere.

> I also wonder if this means the caching is performed by each indirect buffer independently, and doesn't carry over.

Caching is using base buffer actually.
I guess we can explicitly set reference to the cache root to nil in
indirect buffers.

-- 
Ihor Radchenko // yantar92,
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