我如何告诉Windows保留页面而不将其逐出? [英] How can I tell Windows to keep a page and not evict it?
问题描述
我想在 Windows 中分配一块内存，并确保它不会出现#GP或#PF错误.关于#GP，作为程序员，我有责任确保不超出任何范围.但是，#PF是操作系统的责任，因为它可以选择是否逐出页面.
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.
我想像一下，如果我经常使用同一页面，那么该操作系统将足够聪明以至于无法逐出该页面.但是，如果我想分配一个大的内存块，那么我将花一些时间才能到达某些页面，并且我不希望OS在此同时退出它.
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.
有什么办法让 Windows 保持页面显示状态，从而使我永远不会出现页面错误?
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 can I tell Linux to keep a page and not evict it? except that this one is about Windows
推荐答案
看看 VirtualLock 功能:
将进程的虚拟地址空间的指定区域锁定到物理内存中，以确保对区域的后续访问不会引起页面错误.
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.
此页面中有一个示例:创建保护页面.
There's an example in this page: Creating Guard Pages.
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