Number of processor cores confusion

[Colin Law]

On Tue, 10 Nov 2020 at 17:20, Chris Green <cl at isbd.net> wrote:
> ...
> THey can't, or at least a lot of them can't, they suffer from the same
> issues as trying to multithread a single program.  Network activity
> for example has to wait for something else to provide it with data (or
> something to take data).  Memory management can't just come along and
> move stuff about in memory while the kernel is doing something else.

While the your foreground video application is decoding the next
screen of a video a network request to access the mysql server on your
machine, or the response to a time sync request may arrive, or an
attempted login from a hacker, or you might plug in a usb stick which
needs to be mounted or any number of other things.

Colin