Re: The joy of pipes

On 2024-11-18, 186282@ud0s4.net <186283@ud0s4.net> wrote:

...
>
   As I said somewhere, if your child processes are sending
   megabytes back to the parent you're DOING SOMETHING WRONG.

Oh?

Let's take my example of an older Raspberry Pi model 1 with less
than 1GB of RAM and only 4GB of SD card "disk", and process a
video stream several GB in total length, from an mplayer process
that will write only to a file and refuses to write to stdout,
where the stream needs to be sent over the LAN to a machine with
enough spinning rust to store the stream.

Would temporary files work?  Not really.  A named pipe let
mplayer write to a named file.  Even if having two processes
shuffling the data wasn't the most efficient, the Pi handled it
quite well.

--
Robert Riches
spamtrap42@jacob21819.net
(Yes, that is one of my email addresses.)