How can I tell Windows to keep a page and not evict it?
I want to allocate a chunk of memory in Windows and be sure that it will get no #GP or #PF faults. Regarding #GP, it's my responsibility as a programmer to ensure that I do not exceed any bounds. However, #PF are the the responsibility of the OS, since it can choose whether or not to evict a page.
I imagine that if I use the same page frequently, the OS will be smart enough not to evict it. However, if I want to allocate a large block of memory, then it'll take me a while to reach some of the pages, and I don't want the OS to evict it in the meanwhile.
Is there any way to tell Windows to keep a page present so that I never get a page fault?
ote: This is similar to to the question How ca开发者_JS百科n I tell Linux to keep a page and not evict it? except that this one is about Windows
Have a look at the VirtualLock function:
Locks the specified region of the process's virtual address space into physical memory, ensuring that subsequent access to the region will not incur a page fault.
There's an example in this page: Creating Guard Pages.
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