FIFO buffers in linux?

Question

linux

the application writes (line by line) periodically to fifo ($ mkfifo fifo-file)
I want to use tail -f to take data as it arrives and work with them through pipes;
in fact, the data is dumped in pieces of 4096 bytes.
why is that? what exactly is this buffer? is the buffer size configurable? Is it possible to turn off the buffer and drag data as it is actually written?
if you send to read the materiel, then I will be very happy with good materials on the topic
, thanks in advance!

Answer 1

4096 bytes is the size of a memory page.