Wednesday, February 11, 2009

Hard Fault memory Error Explained

 

II have been asked what is a hard memory fault.  While using Task Manager's "Resource Monitor", the Memory section is showing several "Hard Faults".  I assume this is not a "Page Fault" (causing a memory-disk swap) because I expect there would be thousands (not dozens) over time.  What is a memory "Hard Fault"?

A:

Apparently there are now two types of Page Faults: Hard Faults when the desired page is not in the memory cache and can be found on the hard disk and Soft Faults when the desired page is found elsewhere in memory (Ready Boost?) I found this information on MSDN at http://msdn.microsoft.com/en-us/library/aa964785(VS.85).aspx.