Parameters for Oracle Service Bus Socket Adapter Tuning

Before doing stress testing in a customer, the performance is not going to go, later adjusted the network parameters of AIX performance improved.

The records are as follows:

OS (AIX): Requires root access

/usr/sbin/no-p-O tcp_sendspace=4194304
/usr/sbin/no-p-O tcp_recvspace=4194304
/usr/sbin/no-p-O rfc1323=1
/usr/sbin/no-p-O sb_max=8388608

Results can be set by no–l check

NIC network card (eth1:10.170.32.84): Requires root access

Chdev-len1-a tcp_sendspace=1048576-a rfc1323=1-a tcp_recvspace=1048576 sb_max=4194304

Results can be set by Ifconfig–a check

The parameter description modified above:
The tcp_sendspace--controls the amount of buffer space in the kernel that is used to buffer application data. You might want to exceed the default value, because if the limit is reached, the sending application suspends the data transfer until TCP sends the data to the buffer.
tcp_receivespace--In addition to controlling the total amount of buffer space consumed by the receive buffer, AIX uses this value to determine the size of its transport window.
udp_sendspace--for UDP, you can set this parameter to a value that does not exceed 65536, because the upper limit for each IP packet is 65,536 bytes.
The sb_max--tunable parameter sets the upper limit for the number of socket buffers queued for a single socket, which can control the total amount of buffer space used by the buffer (queued for sender or received sockets). This amount should normally be less than wall and approximately 4 times times the maximum value of TCP or UDP send and receive settings.
The rfc1323--tunable parameter supports the TCP window scaling option, which allows TCP to use a larger window size. Turn on this option to support the best TCP performance.

Parameters for Oracle Service Bus Socket Adapter Tuning