| Units | Bytes
to:
| | Units | Pages
|
tcp_rexmit_interval_max
The following section changed.
| Range | 1 millisecond to 20 seconds
to:
| | Range | 1 millisecond to 2 hours
|
tcp_slow_start_initial
This parameter was corrected.
For information, see tcp_slow_start_initial.
tcp_conn_req_max_q0
The following section changed:
| When to Change | For applications,
such as web servers that might receive excessive connection requests, you
can increase the default value to match the incoming rate.
The following explains the relationship between tcp_conn_req_max_q0 and the maximum number of pending connections for each socket.
When a connection request is received, TCP first checks if the number
(N) of pending TCP connections (three-way handshake
is done) waiting to be accepted exceeds the maximum for the listener. If the
connections are excessive, the request is denied. If the number of connections
is allowable, then TCP checks if the number of incomplete pending TCP connections
exceeds the sum of N and tcp_conn_req_max_q0. If it does not, the request is accepted. Otherwise, the oldest
incomplete pending TCP request is dropped.
to:
| | When to Change | For applications,
such as web servers that might receive excessive connection requests, you
can increase the default value to match the incoming rate.
The following explains the relationship between tcp_conn_req_max_q0 and the maximum number of pending connections for each socket.
When a connection request is received, TCP first checks if the number
of pending TCP connections (three-way handshake is done) waiting to be accepted
exceeds the maximum (N) for the listener. If the
connections are excessive, the request is denied. If the number of connections
is allowable, then TCP checks if the number of incomplete pending TCP connections
exceeds the sum of N and tcp_conn_req_max_q0. If it does not, the request is accepted. Otherwise, the oldest
incomplete pending TCP request is dropped.
|
Removal of sun4d Support
The sun4d platform is not supported in the Solaris 9 release. The following
parameters were modified to reflect the removal of sun4d support:
max_nprocs
maxphys
noexec_user_stack
Changes to Existing Parameters From the Previous Release (Solaris 8)
shmsys:shminfo_shmmin
The following section changed:
| When to Change | No known reason.
to:
| | When to Change | Not recommended.
System programs such as powerd might fail if this value
is too large. Programs attempting to create a section smaller than the value
of shminfo_shmmin will see an EINVAL
error when attempting to create the segment and generally, will exit.
|
semsys:seminfo_semmnu
This parameter was added because it was left out inadvertently.
|
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