pre-emptive multitasking

(operating system, parallel)A type of multitasking wherethe scheduler can interrupt and suspend ("swap out") thecurrently running task in order to start or continue running("swap in") another task. The tasks under pre-emptivemultitasking can be written as though they were the only taskand the scheduler decides when to swap them. The schedulermust ensure that when swapping tasks, sufficient state issaved and restored that tasks do not interfere.

The length of time for which a process runs is known as its"time slice" and may depend on the task's priority or itsuse of resources such as memory and I/O.

OS/2, Unix and the Amiga use pre-emptive multitasking.

This contrasts with cooperative multitasking where each taskmust include calls to allow it to be descheduledperiodically.

单词	pre-emptive multitasking
释义	pre-emptive multitasking pre-emptive multitasking (operating system, parallel)A type of multitasking wherethe scheduler can interrupt and suspend ("swap out") thecurrently running task in order to start or continue running("swap in") another task. The tasks under pre-emptivemultitasking can be written as though they were the only taskand the scheduler decides when to swap them. The schedulermust ensure that when swapping tasks, sufficient state issaved and restored that tasks do not interfere. The length of time for which a process runs is known as its"time slice" and may depend on the task's priority or itsuse of resources such as memory and I/O. OS/2, Unix and the Amiga use pre-emptive multitasking. This contrasts with cooperative multitasking where each taskmust include calls to allow it to be descheduledperiodically.
随便看	knights of the maccabees knights of the mashing fork knights of the new republic knights of the old republic knights of the old republic 2 knights of the old republic 3 knights of the order of the star knights of the phoenix knights of the riceburner motorcycle club knights of the rose knights of the round knights of the round table knights of the shire knights of the silver dragon knights of the southern cross new zealand knights of the sword knights of the teutonic order knights of the thistle knights of the vine knights of the white camelia knights of the white camellia knights of the white kamelia knights of the white wolf outta out ta' get me