Yeah this mirrors my experiences. I, too, find the file cache to be significant performance impediment on high-RAM systems. Worse, its behaviour is non-determi

Yeah this mirrors my experiences. I, too, find the file cache to be significant performance impediment on high-RAM systems. Worse, its behaviour is non-deterministic (or at least hard to reason about.) It leads to page table fragmentation and that is the ultimate performance destroyer. Huge page tables are a godsend in this case, but you do need a program that is properly optimised to handle them properly. At least most RDBMS do this reasonably well.