SAP ABAP Data Element MSSREADAHEAD (Page reads per read ahead)
Hierarchy
SAP_BASIS (Software Component) SAP Basis Component
   BC-DB-MSS (Application Component) Microsoft SQL Server
     STUN_MSS (Package) Package for new SQL Server monitoring objects
Basic Data
Data Element MSSREADAHEAD
Short Description Page reads per read ahead  
Data Type
Category of Dictionary Type D   Domain
Type of Object Referenced     No Information
Domain / Name of Reference Type MSSCOLLSLOPE    
Data Type DEC   Counter or amount field with comma and sign 
Length 16    
Decimal Places 3    
Output Length 21    
Value Table      
Further Characteristics
Search Help: Name    
Search Help: Parameters    
Parameter ID   
Default Component name    
Change document    
No Input History    
Basic direction is set to LTR    
No BIDI Filtering    
Field Label
  Length  Field Label  
Short 10 Page reads 
Medium 15 Page reads 
Long 24 Page reads per readahead 
Heading 24 Page reads per readahead 
Documentation

Definition

This value is the ratio between regular page reads and the number of pages which where readahead pages.

Regular page reads are reads coming from actual user requests whereas readaheads are done because the system algorithmic "guesses" that the pages are going to be used very soon.

Use

Dependencies

Example

History
Last changed by/on SAP  20110908 
SAP Release Created in 640