Kbase P14081: Do VSTs (Virtual System Tables) cause performance problems?
| Autor |
Progress Software Corporation - Progress |
| Acesso |
Público |
| Publicação |
07/03/2011 |
|
Status: Verified
GOAL:
Do VSTs (Virtual System Tables) cause performance problems?
GOAL:
Information on general performance concerns when using VSTs.
GOAL:
Development's perspective on VST internals and their non-impact on performance.
FACT(s) (Environment):
All Supported Operating Systems
Progress 8.2x
Progress 8.3x
Progress 9.x
OpenEdge 10.x
FIX:
VSTs do not affect or cause performance hits. The reason there is no performance hit is because every record request gets checked to see if it is for a VST record regardless of whether VSTs have been enabled or not. All information for the VST's are in shared memory. Therefore a database block will not be evicted to retrieve the VST records.