Hello everyone, I consider using two instances of the PG server on one node. The node has two processors and each processor has 64GB memory assigned to it. I'd like to * restrict instance one to processor 0 and its memory and * instance two to processor 1 and its memory using numactl (or similar commands regarding cpuset) and partitioning. I expect >30% speedup on some queries, because collecting data can be done in parallel. Some background information on the system: It's a regular 2 Xeon (each 4x2 cores due to hyperthreading) system with a lot of memory. Memory assigned to the processor can be accessed quickly, memory assigned to the OTHER processor is slow. Does anyone here know a way to accomplish that? I think openstreetmap map of germany (4GB) is a nice opportunity to test performance. Looking forward to constructive answers Andreas Wagner
