Should i adjust SO_RCVBUF to a very small size， when incoming data is very small

StackOverflow https://stackoverflow.com/questions/21881618

  •  13-10-2022
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Question

If a tcp server has thousands of concurrent connections， and each tcp client sends very small data occasionally, Should i adjust SO_RCVBUF to a very small size to save precious memory?

p.s. the size of data is less than 30 byte, the time interval of data tranfer is larger than 5 seconds

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Solution

Definitely not. You won't be able to decrease it below the platform minimum anyway, which will be at least 8k.

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