将java进程锁定或固定到内存中 [英] Lock or Pin java process into memory

问题描述

有没有办法将java进程锁定到内存中。

Is there a way to lock a java process into memory.

使用像mlock / mlockall这样的东西可以将进程的内存锁定到内存中，这样就不会将其换出。使用这种方法是否可以在调用java进程之前编写C包装器以将java进程锁定到内存中？如果是这样，包装器将如何调用java程序 - fork / clone / vfork / execl？

Using something like mlock/mlockall it is possible to lock the memory of a process into memory, so that it doesn't get swapped out. With this approach is it possible to write a C wrapper before invoking the java process to lock the java process into memory? If so, how would the wrapper invoke the java program - fork/clone/vfork/execl?

或者可能还有其他方法可以将java进程锁定到内存中？

Or maybe there is some other way to lock a java process into memory?

谢谢，
Parixit

Thanks, Parixit

推荐答案

你不喜欢你必须编写一个包装器，你可以使用JNI从你的Java程序中调用mlock / mlockall;您甚至不必编写/编译接口代码，JNI会为您完成。

You don't have to write a wrapper, you can call mlock/mlockall from your Java program using JNI; you don't even have to write/compile the interface code, JNI does it for you.

有关详细信息，请参阅 Java Native Interface：程序员指南和规范或其维基百科条目。

For further information, see Java Native Interface: Programmer's Guide and Specification or its Wikipedia entry.

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