Troubleshooting performance problems

Most performance problems can be resolved by tuning operating system resources.

Slow indexing
Indexing can be slow for a variety of reasons. Slow indexing can cause a backlog of index requests in the index request queue.
Slow queries
Slow queries can be caused by lack of resources, improperly tuned systems, and complex queries.
System resource misutilization
Independently of any perceived performances problems with indexing or queries, you might notice that system resources are not being used in an optimal way.
Index request queue
The index requests queue consists of those index requests that are waiting to be processed. Monitor the size of the queue to determine whether your indexing rate equals the document ingestion rate. If the ingestion rate is greater than the index rate, how quickly a document gets indexed can vary considerably.

Parent topic: Tuning IBM Content Search Services