Golang is evil on shitty networks (2022)
The impact of Golang's default setting disabling Nagle's algorithm on network performance is discussed. Concerns include slow uploads, increased latency, and network saturation, questioning the decision's efficiency and suggesting considerations for optimization.
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The article discusses the impact of Golang's default setting of disabling Nagle's algorithm, specifically focusing on its effects on network performance, particularly on unreliable networks. The author shares their experience with git-lfs uploads being slow even on 5Ghz networks due to TCP_NODELAY being set by default in Golang, leading to issues like packet overhead, increased latency, and network saturation. The decision to disable Nagle's algorithm in Golang is questioned, as it goes against the norm in other languages and can have significant consequences on network efficiency. The article delves into technical details about TCP_NODELAY, Nagle's algorithm, and their implications on network communication. The author also reflects on the historical context of TCP_NODELAY and its relevance in modern networking. The default setting in Golang is seen as a potential source of inefficiency and frustration for developers working with network-intensive applications. The article concludes by highlighting the broader impact of this default setting on various systems within the Go ecosystem and suggests considerations for when to enable or disable TCP_NODELAY based on network conditions.
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7 commentsLast time it happened was an `npm install` of a large repo that was stalling during parallel download step. This is on a 500mbps wired connection (though admittedly with a router that has some known issues with TCP congestion). When I enabled Wireguard the problem disappeared and the install completed with no choking.
Just my own experience.
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