rlim_fd_max

/etc/system

65536 

260000 

Process open file descriptors limit; should account for the expected load (for the associated sockets, files, pipes if any). 

hires_tick

/etc/system

1 

sq_max_size

/etc/system

2 

0 

Controls streams driver queue size; setting to 0 makes it infinite so the performance runs won’t be hit by lack of buffer space. Set on clients too. Note that setting sq_max_size to 0 might not be optimal for production systems with high network traffic.

ip:ip_squeue_bind

0 

ip:ip_squeue_fanout

1 

ipge:ipge_taskq_disable

/etc/system

0 

ipge:ipge_tx_ring_size

/etc/system

2048 

ipge:ipge_srv_fifo_depth

/etc/system

2048 

ipge:ipge_bcopy_thresh

/etc/system

384 

ipge:ipge_dvma_thresh

/etc/system

384 

ipge:ipge_tx_syncq

/etc/system

1 

tcp_conn_req_max_q

ndd /dev/tcp

128 

3000 

tcp_conn_req_max_q0

ndd /dev/tcp

1024 

3000 

tcp_max_buf

ndd /dev/tcp

4194304 

tcp_cwnd_max

ndd/dev/tcp

2097152  

tcp_xmit_hiwat

ndd /dev/tcp

8129 

400000 

To increase the transmit buffer. 

tcp_recv_hiwat

ndd /dev/tcp

8129 

400000 

To increase the receive buffer.