Excessive system page faulting results from overallocating the physical memory (RAM) of the machine. Excessive page faults severely degrade the performance of Sybase IQ. By carefully allocating Sybase IQ buffers, monitoring the virtual address space of the Sybase IQ process(es), and monitoring available physical memory, you can prevent memory overallocation. This section offers guidelines for monitoring Sybase IQ use of your machine's physical memory.