General System Tuning for the NCA

set sq_max_size=0
set ge:ge_intr_mode=1
set nca:nca_conn_hash_size=82500
set nca:nca_conn_req_max_q=100000
set nca:nca_conn_req_max_q0=100000
set nca:nca_ppmax=393216
set nca:nca_vpmax=393216

The depth of the syncq (number of messages) before a destination streams queue generates a QFULL message.

2 messages

0 (unlimited) to MAXINT

No

When NCA is running on a system with a lot of memory, increase this parameter to allow drivers to queue more packets of data. If a server is under heavy load, increase this parameter so modules and drivers may process more data without dropping packets or getting backlogged.

Note - sq_max_size=0 is intended only for benchmarks or testing environments.

Solaris 8 and later releases - Do not set this parameter to 0 on production systems. If you need to change this parameter, gradually increase this value and monitor the system.

Solaris 7 and earlier releases - Do not set this parameter to 0 on production systems. If you need to change this parameter, gradually increase this value to a maximum of 100, and monitor the system.

Unstable

For information, see sq_max_size (Solaris 9 12/02 Release).

Enables the ge driver to send packets directly to the upper communication layers rather than queueing the packets.

0 (queue packets to upper layers)

0 (enable) to 1 (disable)

No

When NCA is enabled, set this parameter to 1 so that the packet is delivered to NCA in interrupt mode for faster processing

Unstable