Oracle Audio Technologies B31679-01 manual Tru64 UNIX, Shared memory, # /sbin/sysconfig -q ipc

Replication For replication, TCP send and receive buffers should be increased to a minimum of 512KB. You may need to embed the following commands into a script that can be run at system boot time:

#/usr/sbin/ndd -set /dev/tcp tcp xmit_hiwat=524288

#/usr/sbin/ndd -set /dev/tcp tcp_recv_hiwat=524288

Tru64 UNIX

Semaphores On Tru64 UNIX systems, to view existing kernel parameter settings, log in as user root, and use the command:

# /sbin/sysconfig -q ipc

For each data store, TimesTen consumes 100 SEMMSL if the Connections attribute is set to the default value (64), and one additional SEMMSL for each estimated connection above the default.We recommend that you increase the number of semaphores:

1.Log in as user root.

2.To view the current limits, use:

% sysconfig -q ipc

This command displays all the parameters of the IPC subsystem.

3.If the broadcast_wakeup semaphore parameter exists on your system, it must be set to one:

sem_broadcast_wakeup = 1

4.Run the Tru64 UNIX dxkerneltuner:

% dxkerneltuner

5.Double-click IPC.

6.Scroll down the list of parameters and change the values of the following parameters to at least the values indicated here:

Shared memory

sem_mni = 20 sem_msl = 512 sem_opm = 100 sem_ume = 100

Note: The values in this step are the minimum number of required semaphores. You can increase these numbers as needed.

To increase the maximum address space a process may use, change the kernel values per_proc_address_space and

max_per_proc_address_space

TimesTen Installation 33