Oracle Audio Technologies B31679-01 manual Using TimesTen in a memory window

<instance> command to determine which port is being used by the instance.

Using TimesTen in a memory window

In order to use a TimesTen instance running in a memory window, you must launch your application using the HP-UX setmemwindow(1M) command.

For example, given instance tt_ins1, use:

% setmemwindow -j -i `getmemwindow tt_ins1` <prog>

TimesTen utilities are used without the setmemwindow command, for example:

% ttBackup ...

Address Space Considerations

The maximum size for any one data store remains 1GB with 32-bit TimesTen.

TimesTen allocates a single shared memory segment per data store. TimesTen may also allocate shared memory segments when configured to use the shared memory IPC mechanism for client/server.

The daemon and utility programs (programs) provided by TimesTen are linked with EXEC_MAGIC, using the -Noption to ld(1). You may change the TimesTen programs to be marked SHMEM_MAGIC, enabling 2GB of shared memory within the window. Any single data store is still limited to 1GB.

For example, to use SHMEM_MAGIC, log in as root and use:

#chatr -M tt_instance/bin/timesten* tt_instance/bin/*Cmd tt_instance/bin/ttcserver

To return to EXEC_MAGIC, use:

#chatr -N tt_instance/bin/timesten* tt_instance/ bin/ *Cmd tt_instance/bin/ttcserver

To determine if a program is SHMEM_MAGIC or EXEC_MAGIC, use

#chatr binary

The chatr(1M) command prints “normal executable” for EXEC MAGIC programs. It prints “SHMEM_MAGIC” for programs so marked.

Note: If the TimesTen programs are marked SHMEM_MAGIC, the user application must be marked SHMEM_MAGIC also. Failure to mark the

TimesTen Installation 55