TCP Tuning
4-2
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TCP Tuning
Correctly tuned TCP parameters can improve performance dramatically. This
section contains recommendations for TCP tuning and a brief explanation of each
parameter.
The table below contains recommended TCP parameter settings.
Table 4–1
Recommended TCP parameter settings for Intel Solaris
Parameter
Setting
Comments
tcp_conn_hash_size
32768
See
"Increasing TCP
Connection Table Access
Speed"
on page 4-6.
tcp_close_wait_interval 60000
Parameter name in Solaris 2.6.
See
"Specifying Retention time
for Connection Table entries"
on page 4-7.
tcp_time_wait_interval 60000
Parameter name in Solaris 2.7.
See
"Specifying Retention time
for Connection Table entries"
on page 4-7.
tcp_conn_req_max_q
1024
See
"Increasing the Handshake
Queue Length"
on page 4-7.
tcp_conn_req_max_q0
1024
See
"Increasing the Handshake
Queue Length"
on page 4-7.
tcp_slow_start_initial
2
See
"Changing the Data
Transmission Rate"
on
page 4-8.
tcp_xmit_hiwat
32768
See
"Changing the Data
Transfer Window Size"
on
page 4-8.
tcp_recv_hiwat
32768
See
"Changing the Data
Transfer Window Size"
on
page 4-8.
