Package tcplisten provides customizable TCP net.Listener with various performance-related options:
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SO_REUSEPORT. This option allows linear scaling server performance on multi-CPU servers. See https://www.nginx.com/blog/socket-sharding-nginx-release-1-9-1/ for details.
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TCP_DEFER_ACCEPT. This option expects the server reads from the accepted connection before writing to them.
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TCP_FASTOPEN. See https://lwn.net/Articles/508865/ for details.
The package is derived from go_reuseport.