Depends on the tree. If you fetch the root node and spi fetches more than one level, you might potentially include a lot of nodes, more compared to a more deeper subtree.If you are using spi2davex for the remote connection, you can change the BatchReadConfig to not fetch deeper levels. See also http://markmail.org/message/nzcbrf27b2edkbzr for some links.
Some more details on how caching and batch reading interact here: http://markmail.org/message/qwh3rwstpjr56ghs
Michael
