Nagle algorithm affecting TCP listening

I have two LabVIEW applications communicate with each other over TCP for a monitor streams data to a receiver. Ideally, I'd like my monitor, that generates the data, to listen to a TCP connection and then send data via this connection when my receiver connects to it. When I structure my code in this manner, I find that I get peak latencies of ~ 500ms (!).

I came across the following knowledge base article functions use LabVIEW TCP Nagle Algorith? and initially found no speed upward.

When I reorganized my code so that the receiver has acted as a listener and my monitor connected to the port of receivers and IP, then the TCP function without delay worked as announced.

There experience with disabling the Nagle algorithm on a listening port, for example like this?

I wish that my application of monitoring to act as a passive monitor other applications that can connect to.

I found the question once I started to do a test project to illustrate the problem.

My receiver application was configured as a state machine waiting in line and there was a bug where read occaisionally would not wait it on the TCP protocol. It resembled a bottleneck on the side sending. When I changed between the two implementations I removed the bug without knowing what actually look as if the issue was with how I disable the Nagle algorithm.

Everything seems to work fine now!

Tags: NI Software

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