WebSphere V6.1.0
configuration
Settings are chosen to improve the performance of WebSphere® when running this
workload. While many of these settings are applicable to other workloads,
the settings and their chosen values might not be appropriate for
production environments.
Java DataBase Connectivity connection pools
JDBC connection pools are established to allow multithreaded applications to request resources from a backend database without having to incur the connect and disconnect overhead on every database request.
Java DataBase Connectivity data source properties
The settings used to configure the Java™ DataBase Connectivity (JDBC) data source properties were chosen to maximize performance.
Object Request Broker thread pool
The Object Request Broker (ORB) is a service that handles requests from clients over the Remote Method Invocation/Internet Inter-ORB Protocol (RMI/IIOP). One part of the workload driver connects to the workload application using its Enterprise Java Beans (EJBs) with Remote Method Invocation of Java methods (RMI) using RMI/IIOP.
WebContainer thread pool
The WebContainer thread pools are used for HTTP requests that come from the client.
Default thread pool
The parameters associated with the default thread pool are modified to reuse threads instead of creating new ones.
HTTP transport settings
The default values for the HTTP transport channels associated with a transport chain are modified to improve performance.
Enterprise Java Beans cache settings
This value specifies the number of buckets in the active instance list available for Enterprise Java Beans (EJBs).
Tune the Java Virtual Machine properties
The Java Virtual Machine (JVM) heap is the amount of available memory allocated to the Java virtual machine. The JVM minimum and maximum values are set based on heap size studies, with different values for 64-bit WebSphere running a 64-bit JVM, and 31-bit WebSphere running a 31-bit JVM.
Other Java Virtual Machine arguments
These Java Virtual Machine (JVM) arguments were identified as beneficial to the workload used here, and other benchmarks with similar characteristics to the workload. The values are specific to the workload and should not be expected to necessarily benefit other workloads or production environments.
Transaction service properties
The values of the total transaction lifetime timeout and the client inactivity timeout are set to zero.
Disable Java 2 security
Java 2 security is disabled because security policy files are not available for the workload.