HP-UX 11i v2 Read Before Installing or Updating, September 2006

In general, the more threads in an application, the more
arenas should be used for better performance. By default,
eight (8) arenas are assigned to multi-threaded
applications. However, for certain types of multi-threaded
applications, the use of multiple arenas can lead to
inefficient memory use.
In particular, configuring the CIM Server process,
cimserver, to use more than one arena can cause the
process to grow extremely large.
Please refer to the malloc(3C) manpage for additional
information on the _M_ARENA_OPTS environment variable.
What To Do
Starting with HP WBEM Services A.02.00.11 on HP-UX,
the CIM Server process will use a single arena. This was
done by setting the following environment variables prior
to starting the cimserver.
export _M_ARENA_OPTS=1:8
export _M_SBA_OPTS=512:100:16