On Tue, Feb 18, 2003 at 06:42:08PM +0100, Lukas Ruf wrote: > * ytse <javaguest@libero.it> [2003-02-18 18:36]: > > > What means non preemptive? > > > > preemptive: interruptible > non-preemptive: non-interruptible > > this means that a task running in kernel space can not be interrupted > by another task in kernel space, i.e. the scheduler, if run, returns > always to the same process/task on return. Can you tell me where this is done in the scheduling algorithm (2.4.xx)? > However, Linux is a multitasking OS. Processes in user space may be > interrupted nearly at any time. > > Another process model would "co-operative" where processes in user > space are interrupted only by system calls, i.e. they agree to give > the processor away to another process. > > Consider reading a book on OS principles... ..doing... :) Thanks. ytse -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/
