I am working on a non-technical, generic BSD article about special system
processes. I am trying to figure out some details about swapper (process
0) -- and I have a few questions.
I understand that the "swapper process swaps in runnable processes that
are currently swapped out, if there is room." Does anyone have an example
or an easy-to-understand description?
What is a frame? How is it related to swapper?
What is a PCB (pcb)? How is is it related to swapper?
Why is process 0 (zero) also called the "scheduler"? Is this the same as
the swapper?
What does "uao" (maybe "? anonymous object") mean? How is this related
to the swapper (or pagedaemon)?
On a related note, are there any special system processes other than the
swapper, pagedaemon, reaper and ioflush?
Where is this well documented?
Thanks,
Jeremy C. Reed
http://www.reedmedia.net/
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