TCP ACK is described here: https://en.wikipedia.org/wiki/TCP_delayed_acknowledgment

I know very little about this - I just learned about it via this ticket that I filed with Node.js:


Basically I am using TCP to do IPC via localhost, but there's a big delay for each request.

This is the way to change the delay on RedHat apparently:


is there a way to change this setting on Ubuntu?

Maybe like the wikipedia article says, use the TCP_QUICKACK option?

  • Any different if you use instead of localhost? – user822833 Jun 5 '18 at 5:59

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