“Total Network I/O Requests” reports the total number of packets received and sent.
If you know how many packets per second the network can handle, you can determine whether Adaptive Server is challenging the network bandwidth.
The issues are the same whether the I/O is inbound or outbound. If Adaptive Server receives a command that is larger than the packet size, Adaptive Server waits to begin processing until it receives the full command. Therefore, commands that require more than one packet are slower to execute and take up more I/O resources.
If the average bytes per packet is near the default packet size configured for your server, you may want to configure larger packet sizes for some connections. You can configure the network packet size for all connections or allow certain connections to log in using larger packet sizes.
See “Changing network packet sizes” on page 27 in the Performance and Tuning: Basics.
