SmallWiki does version all changes, therefor even when you delete a
resource the amount of the memory consumption grows. In case you
accidentally deleted a resource you might restore it at a later point
Delete the history of the parent folder to completely release the
memory of a deleted page.
How about trying to move older versions of resources to some 'old space'
(disk storage, using OODB or SIXX) and leave proxies?
Older versions are not so frequently referenced. We can apply the strategy
of 'generation scavenging' of resources.
[:masashi | ^umezawa]