Some time ago I installed SQL 2008 on a VPC which was also running MOSS and PerformancePoint. Soon enough the VPC started to run out of memory. I tore my hair out for a few days because nothing I did made a good dent in the problem.
Till I found the silver bullet.
Consistently SSAS was high on the list of memory-hungry services - plateauing around the 500Mb mark. Yeah, that's a lot. With only a couple of cubes and no queries running it did seem to be hugely excessive.
What to do? Install SP1.
That's it.
Usage dropped down to somewhere around 30-80Mb. Much more memory friendly!
Interestingly, of the many bug fixes included, in SP1 (full list), a memory leak in SSAS is not one of them!
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