To optimize Unwired Server
performance, configure the thread stack size, maximum and minimum heap sizes, and user options
such as enabling trace upload to SAP® Solution Manager.
- In the left navigation pane, expand the Servers folder and select a server.
- Select Server Configuration.
- In the right administration pane, select the General tab.
- Configure these replication payload properties, as required:
- Host Name – the name of the machine where Unwired Server is running (read only).
- Maximum Heap Size – the
maximum size of the JVM memory allocation pool. Use K to indicate kilobytes, M
to indicate megabytes, or G to indicate gigabytes. For production
recommendations on this value, see Unwired Server Replication Tuning Reference in
System Administration.
- Minimum Heap Size – the
minimum size of the JVM memory allocation pool, in megabytes. For production
recommendations on this value, see Unwired Server Replication Tuning Reference in
System Administration.
- Thread Stack Size –
the JVM -Xss option.
- User Options (in Show
optional properties) – other JVM options. For example, you can enable JVM
garbage collection logging by setting -XX:+PrintGCDetails. Or you can set the permanent space which
is
allocated outside of the Java heap with
the
DJC_JVM_MAXPERM
environment variable (in
SUP_HOME\Servers\UnwiredServer\bin\usersetenv.bat);
the maximum perm size must be followed by K, M, or G, for example, -XX:MaxPermSize=512M. Note that DJC_JVM_MAXPERM is
not visible to Sybase Control Center.
If
you are in an SAP environment and want to define the Solution
Manager URL into which trace files can be
uploaded,
use this user option: -Dcom.sap.solutionmanager.url=<SolutionManager_URL>.
- Click Save.