Increasing Synchronized Queues to Improve Network Performance

To increase the size of STREAMS synchronized queues, thereby increasing network performance, add the sq_max_size variable to the /etc/system file.

set sq_max_size=n

Set the sq_max_size variable to n, where n is the maximum number of messages that are allowed for each IP queue. A safe value to set this variable is 25 for each 64 Mbytes of RAM in the system. For example, if your system has 64 Mbytes of RAM, you would set the variable to 25 (50 if the system has 128 Mbytes of RAM, 100 if your system has 256 Mbytes of RAM, and so on).

You can be more aggressive if you choose, but you may overrun STREAMS resources.

Refer to the Solaris documentation for more information.