Increase Performance With Large Referenced Drawings; Overview Of Demand Loading - Autodesk 057B1-41A111-1001 - AutoCAD LT 2010 User Manual

Update block symbol table:
Appending symbol: STAIR|BOLT
Appending symbol: STAIR|BOLT-HALF
...
block update complete.
Update Ltype symbol table:
Appending symbol: STAIR|DASHED
Appending symbol: STAIR|CENTER
Appending symbol: STAIR|PHANTOM
Ltype update complete.
Update Layer symbol table:
Appending symbol: STAIR|STEEL-HIDDEN
Appending symbol: STAIR|OAK
...
Layer update complete.
STAIR loaded.
Track External Reference Operations (Log File)
To use the xref log file
1 At the Command prompt, enter xrefctl.
2 Enter 1 to turn logging on or 0 to turn logging off.
3 Press Enter.
Logging is off by default.
Increase Performance with Large Referenced
Drawings
There are several features that can improve performance when dealing with
large referenced drawings.

Overview of Demand Loading

The program uses demand loading and saving drawings with internal indexes
to increase performance with large referenced drawings that have been clipped,
or that have many objects on frozen layers. With demand loading, only the
Reference Other Drawing Files | 477