我如何告诉Linux保留页面而不驱逐它? [英] How can I tell Linux to keep a page and not evict it?

问题描述

可能重复:
我可以告诉Linux不要换出特定进程的内存?

Possible Duplicate:
Can I tell Linux not to swap out a particular processes' memory?

我想在 Linux 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 Linux 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.

有什么方法可以告诉 Linux 使页面保持当前状态，从而永远不会出现页面错误?

Is there any way to tell Linux to keep a page present so that I never get a page fault?

注意:这类似于问题

Note: This is similar to to the question How can I tell Windows to keep a page and not evict it? except that this one is about Linux

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