Socket SO SNDBUF

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External

Internal

Overview

The current value is obtained with getSendBufferSize() and set with setSendBufferSize(int). SO_SNDBUF is used by the network implementation as a hint to size the underlying I/O buffers. Calling setSendBufferSize(int) is no guarantee that the implementation will use the value, so the application may want to verify the buffer size with getSendBufferSize().

Also see net.core.wmem_default, net.core.wmem_max and other related Linux kernel configuration attributes.