The UseOutputStreamSize directive determines the default output stream buffer size for the net_read and netbuf_grab NSAPI functions.
The UseOutputStreamSize parameter can be set to 0 in the obj.conf file to disable output stream buffering. For the magnus.conf file, setting UseOutputStreamSize to 0 has no effect.
UseOutputStreamSize size
The size value is the number of bytes.
The default value is 8192 (8 KB).