SessionPropertiesSdkBufferSize Property

Controls the buffering of transmit messages. When sending small messages, the session buffer size should be set to multiple times the typical message size to improve performance. Regardless of the buffer size, the API always accepts at least one message to transmit. So even if a single message's size exceeds this value, it is accepted and transmitted, as along as the current buffered data is zero. However, no more messages are accepted until the amount of data buffered is reduced below this value.
Default: 90000
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public int SdkBufferSize { get; set; }