Haskell API for memory useage

Hi, Haskell has getCPUTime to get the amount of CPU Time that has been consumed, but has no equivalent for memory use. I would like to get something similar to -RTS -t, but from a Haskell program. I'm not overly fussed about what memory statistic I get, as long as it is something that corresponds in some way to the amount of memory that has been used - cells, heap size, live heap etc are all fine. So, I'm after something like: getMemoryUse :: IO Integer Is there anything I can use to do this? Thanks Neil