Building cross-references for code in Dynamics AX creates millions of records in xRef tables. It has also very negative impact on fragmentation of database indexes.
This is an example of indexes on xRefReferences table from a customer’s environment after rebuilding all cross references.
And here the same set of indexes a few minutes later after a rebuilding indexes:
If an index is heavily fragmented, it’s much slower to scan it and you’ll notice performance degradation...(read more)Image may be NSFW.
Clik here to view.
Clik here to view.
