Performance monitoring

You can use several tools to aid performance monitoring. Some tools are provided with InfoSphere® DataStage® and some are general UNIX tools.

Job monitor
You access the IBM® InfoSphere DataStage job monitor through the InfoSphere DataStage Director client.
Iostat
The UNIX tool Iostat is useful for examining the throughput of various disk resources.
Load average
Ideally, a performant job flow should be consuming as much CPU as is available. The load average on the machine should be two to three times the value as the number of processors on the machine. For example, an 8-way SMP should have a load average of roughly 16-24.
Runtime information
When you set the APT_PM_PLAYER_TIMING environment variable, information is provided for each operator in a job flow. This information is written to the job log when the job is run.
Performance data
You can record performance data about job objects and computer resource utilization in parallel job runs.
OS/RDBMS specific tools
Each operating system and RDBMS has its own set of tools that might be useful in performance monitoring. Talking to the sysstems administrator or DBA might provide some useful monitoring strategies.

Parent topic: Improving performance