🚀 go-pugleaf

"Tabir" <BCB@BCB> wrote:

>Could somebody explain the difference between the "Thread" and "Process" ?

Here's a description. I hope others will supply theirs, and that between
them you get a better understanding.

Both are units of execution.

You may have multiple processes running on your computer. Within a
process, you may have one or more threads running.

Two processes will each have their own memory space. One process may
write to memory, but the other process is totally unable to see it
(excluding wonderful things like shared memory).

Tow threads in the same process, however, can see the same memory. So
one can write, and the other can read what the first one has written.

When the CPU switches between processes, it has to map out the entire
address space for one process, and map in a new address space for the
second.

When the CPU switches between threads in the same process, though, it
only has to change a few registers. It's much quicker.

>Can we use the same terminology in Windows and Linux ?

Pretty much. The implementation and underlying APIs will probably be
different.

Alan Bellingham
-- 
ACCU Conference 2004 - http://https://www.accu.org/conference/