anchor.diff:  
   [NOTE]
   indexCount^2^ is the maximum number of indexed queue entries.
  +
  +NOTE: See Section *_13. Excerpt indexing in Chronicle Queue_* of this User Guide for more information and examples of using indexes.
   
   * *readBufferMode, writeBufferMode*
   
  
positive.code: 
  * *indexSpacing*
  
  This parameter shows space between excerpts that are explicitly indexed.
  A higher number means higher sequential write performance but slower random access read.
  The sequential read performance is not affected by this property.
  For example, the following default index spacing can be returned:
  
negative.code: ----
  The maximum number of messages that can be stored in a queue file depends on roll cycle. See  https://github.com/OpenHFT/Chronicle-Queue/tree/master/docs/FAQ.adoc[FAQ] for more information on this.
  
  In Chronicle Queue, the rollover time is based on UTC. The Timezone Rollover Enterprise feature extends Chronicle Queue's ability to specify the time and periodicity of queue rollovers, rather than UTC. For more information see link:docs/timezone_rollover.adoc[Timezone Queue Rollover].
  
  The Chronicle Queue `FileUtil` class provides useful methods for managing queue files. See link:docs/managing_roll_files_directly.adoc[Managing Roll Files Directly].
  
  * *wireType*
  
  It's possible to configure how Chronicle Queue will store the data by explicitly set the `WireType`:
  