Much of CPU tuning revolves around the submission of index
batches from Content Platform Engine to IBM® Content Search Services.
Indexing work capacity
You can control the indexing work capacity of IBM Content Search Services index servers and Content Platform Engine instances.
Text extraction worker threads (Content Platform Engine)
The indexing rate is affected by the number of concurrent
worker threads that perform text extraction. To achieve an optimal
indexing rate, set this number to be as high as system resources permit.
Dispatcher minimum wait interval
The administration console Minimum wait interval property
for indexing specifies the minimum time between dispatcher processing
runs. The default minimum wait interval is 180 seconds. During each
run, the Content Platform Engine dispatcher
assigns index requests from the index request queue to worker threads.
Maximum lease interval
The administration console Maximum lease interval property
for indexing specifies a maximum for the following intervals: the
wait interval for the dispatcher and the interval for a worker thread
to process an index batch. The latter interval is called the lease
interval.
Maximum index batch size
The administration console Maximum batch size property
for indexing specifies the maximum number of index requests in an
index batch. The default is 1000 index requests per batch. Content Platform Engine submits index batches
to IBM Content Search Services index servers
for processing.
Maximum index insertion batch size for indexing/reindexing
For larger volumes of indexing and when faster indexing
performance is crucial, increase the maximum size for index insertion
batches. Index insertion batches contain index requests that are added
to the index request queue.