Re: Linux doing "cooperative multitasking"?

Tyson D Sawyer (
Wed, 27 Nov 1996 11:03:31 -0500 (EST)

> I start netscape on an rxvt-Term. I forgot to send it in the Background by
> not giving "&" at the end of the command line. So I hit "^Z" on the
> terminal I started netscape. Nothing happens for a long time or at all.
> Is Linux doing only "cooperative multitasking"?

Linux is doing preemtive multitasking but X is doing cooperative.
X is responsible for sending key strokes to the processess and
updating the display. It is possible for a single process to
"grab" X and not give it up until it feels like it.

Though I generally love X, it doesn't really seem to be designed
with the same ideas of robustness and efficiency that where
used when writting the kernel. X really should be multi-threaded
and do a better job of isolated processes from each other.