073eee46_n_Memory_Columnar_Store__IMCS___Recommendations
[Parameter name] imcs.tile_size [Description] Size of tile or vector that is used to organize vector operations [Default value] 128 [Recommendations] 
The larger tile is, the less influence of interpretation overhead. But best performance can be achieved only if tile fits in CPU L1 cache. Please notice that some operators have two or more parameters, so more than one tile can be calculated at each stage of operator's pipe processing. Also memory may be needed for other purposes, so to reduce probability of cache misses, keep this value reasonably small.
In-Memory Columnar Store (IMCS)
Recommendations