Heap profiling

Hi, I really like the profiling options in GHC, but I wonder if there's any good way of improving heap profiling speed? I've tried using -i to reduce the number of measurements, but it didn't seem to help a lot. I see an order of magnitude speed degradation with heap profiling, which is slightly annoying, since it is with large runs heap consumption starts to become troublesome :-) Any tricks I ought to know about? -kzm -- If I haven't seen further, it is by standing in the footprints of giants