Defines the number of files to be passed to the Indexer in one batch.
Valid range is 1 to 65535.
A value of 2000 is recommended for large index collections. Lower values will result in inefficient indexing performance.
Returns the number of files per batch.
Default is 25.
Repository Manager, Indexer tab, Configure, Content Items Per Indexer Batch
As a configuration setting, defines the batch size:
As script, returns the value from configuration files: