Tom, > It's still true that I'm leery of a large increase in the number of > buffers without reengineering slru.c. That code was written on the > assumption that there were few enough buffers that a linear search > would be fine. I'd hold still for 16, or maybe even 32, but I dunno > how much impact that will have for such a test case. Actually, 32 made a significant difference as I recall ... do you still have the figures for that, Jignesh? The test case is a workload called "iGen" which is a "fixed" TPCC-like workload. I've been trying to talk Sun into open-sourcing it, but no dice so far. It is heavy on writes, and (like TPCC) consists mostly of one-line transactions. -- Josh Berkus PostgreSQL @ Sun San Francisco ---------------------------(end of broadcast)--------------------------- TIP 5: don't forget to increase your free space map settings