This section describes the revision history for this manual.
The current version of this manual applies to the Solaris 8 7/01 release.
This section contains new parameters.
This parameter is new in the Solaris 8 1/01 release. See logevent_max_q_sz for more information.
These parameters were corrected.
The following section changed.
1 to 2048
to:
1 to 2048, based on physical memory without any setting in the /etc/system file.
1 to 4096, if set in the /etc/system file.
The following section changed.
0 to 32,767
to:
0 to 50% of physical memory.
The following section changed.
Limit on the number of shared memory segments that any one process can create.
to:
Limit on the number of shared memory segments that any one process can attach.
The following section changed.
to:
One page or 4% of physical memory, whichever is greater.
The following section changed:
Bytes
to:
Pages
The following section was changed.
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:
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.
The following section changed.
1 millisecond to 20 seconds
to:
1 millisecond to 2 hours
This parameter changed.
See tcp_slow_start_initial for more information.
The following section changed.
No known reason.
To:
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.
See shmsys:shminfo_shmmin for more information.
This parameter was added because it was left out inadvertently.
See semsys:seminfo_semmnu for more information.