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A new MemoryHeapType default in #ssas #tabular 2016 (please, fix your setting in production!)

If you already installed Analysis Services 2016, you should change the MemoryHeapType setting. There is a new default value (-1), which is an automatic choice that currently applies a new hybrid allocator (which has the number 5 as a value). It should resolve the memory fragmentation problem causing performance issue as described in an article I wrote a few years ago. However, the setup does not write the new default value as a current value and it still write the old default “2”, which is not good for Tabular. Thus, if you installed SSAS Tabular 2016, you probably have this setting (look at the Default Value different than the Value!). The new setting is also the suggested one for Multidimensional.




Tags: performance, setup, tabular


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