This window lets you view, edit the current size and maximum size of, and clear the major caches in Houdini. To open the cache manager window, choose Window ▸ Cache Manager.

Edit the text boxes to set the maximum or current size of the caches. The minimum size shows the amount of data currently locked in the cache (data which cannot currently be removed, possibly because it is in use). Reducing the current size will remove some data from the cache to accomodate the new size and reflect the new current size after the data is removed. Reducing the maximum size may also remove some data from the cache if the new value is less than the current size.