On Fri, Sep 28, 2001 at 01:14:46PM -0700, A V wrote: > > Hi, > > Does RTLinux uses virtual memory ? I hope not. > Becaz real-time kernel should not use virtual memory. > But in our RTLinux the module loading is taken care > of by Linux kernel. Am i right ? Linux kernel uses > virtual memory. How can Linux kernel know that it > should not use virtual memory for RT-processes ? > Please clear my doubt.
Yes, the kernel support full virtual memory; there's no point in it not doing so. The memory, though comes in two varieties for this situation: kernel-space, and user-space. Kernel-space memory will never get swapped out, but user-space memory can be. RT Linux code actually runs as a kernel module [at least, the bit you code to be actual hard real-time]. This module runs in kernel-space, so will never get swapped out. Gary (-; -- [rtl] --- To unsubscribe: echo "unsubscribe rtl" | mail [EMAIL PROTECTED] OR echo "unsubscribe rtl <Your_email>" | mail [EMAIL PROTECTED] -- For more information on Real-Time Linux see: http://www.rtlinux.org/
