Improving the performance of your CICS system
Achieving an acceptable level of performance is a difficult
task, because the requirement to experience a quick response conflicts
with other business needs, such as:
- Validating access to CICS® regions and resources
- Achieving a large throughput of CICS tasks
- Giving priority to the most important tasks, terminals, or users
- Backing up data that is affected by CICS tasks
- Staying within the enterprise's hardware budget
You can improve the performance of your CICS system through
the following methods:
- Improving performance by examining startup and shutdown processes
- Improving DB2 performance by tuning parameters
- Improving performance by adjusting settings for file control
- Improving performance by uninstalling inactive clients
- Improving performance by controlling the rate of requests to the RPC listener
- Improving performance by controlling the number of transactions running in a region
- Improving performance by tuning I/O access
- Improving performance by using an SP2 on the AIX platform
- Improving performance by using an SP2 on the AIX platform
- Improving CICS initialization performance
- Possible effects of changing the system clock details the recommended process for making tuning changes to your system.
- Performance measurement describes the tools that you can use to measure your system's performance.
- Symptoms and solutions for CICS performance constraints looks at storage and memory warnings and poor response time as symptoms that indicate major system constraints.
- Performance costs of CICS facilities describes how particular CICS facilities can affect performance.
- Identifying performance considerations for system administrators looks at the types of performance problems that generally require the attention of system administrators.
- Possible effects of changing the system clock discusses the impact on the system of changing the system clock.