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The Basics of Page Faults | |
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||
| Time: 10:12 EST/15:12 GMT | News Source: Ask the Performance Team | Posted By: Michael Dragone | ||
|
In our last post, we talked about Pages and Page Tables. Today, we’re going to take a look at one of the most common problems when dealing with virtual memory – the Page Fault. A page fault occurs when a program requests an address on a page that is not in the current set of memory resident pages. What happens when a page fault occurs is that the thread that experienced the page fault is put into a Wait state while the operating system finds the specific page on disk and restores it to physical memory. | ||
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