System Monitor reports a very large number of Page Faults/sec on my system, we just added RAM, and it does not seem to help. How can I tell when I am out memory and need to add more?
The best single indicator of a real memory (RAM) shortage is Available Bytes. This Counter reports the current number of pages (in bytes there are 4096 bytes in a page) in the Zero, Free, and Standby Lists that the Memory Manager maintains. This pool of available memory is used to resolve page faults quickly. So long as there is a cushion of Available Bytes that is at least 5-10% of the size of RAM, you probably have sufficient memory to run your workload. It is also important to monitor Available Bytes to see if it remains at or near a threshold value of 4 MB. When Available Bytes (the sum of Zero, Free, and Standby Lists) falls below approximately 4 MB, it triggers a change in the operating systems memory management policy. The working set of a process is defined as the number of virtual memory pages that it is allowed to keep resident in RAM. Normally, the working sets of processes that are running at their maximum working set size are adjusted upwards periodically by a component of
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