forked from GitHub/gf-core
Caching parse results uses a lot of memory, even if they expire after 2 minutes, so it won't scale up to many simultaneous users. But some excessive memory use seems to be caused by space leaks in (the Haskell binding to) the C run-time system, and these should be fixed. For example, flushing the PGF cache does not release the memory allocated by the C run-time system when loading a PGF file.