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[GLASSFISH-17013] Significant apparent regression in ORB start-up from 2.1 to 3.1.1 Created: 11/Jul/11  Updated: 08/Feb/12

Status: Open
Project: glassfish
Component/s: orb
Affects Version/s: 3.1.1
Fix Version/s: None

Type: Bug Priority: Blocker
Reporter: Tim Quinn Assignee: Harshad Vilekar
Resolution: Unresolved Votes: 0
Remaining Estimate: Not Specified
Time Spent: Not Specified
Original Estimate: Not Specified

Issue Links:
Dependency
blocks GLASSFISH-16543 Performance regression in JavaEE (ejb... Open
Tags: 3_1_2-exclude
Participants: Harshad Vilekar and Tim Quinn

 Description   

Using profiles Scott collected (with JIT turned off) for 2.1.1 and 3.1.1, I found that ORB initialization seems to show a significant regression:

Numbers are CPU seconds:

In 3.1.1:

10.527 GlassFishORBFHelper.getORB

In 2.1 is what I think is the equivalent

4.093 com.sun.enterprise.util.ORBManager.getORB

I do not have access to them right now, but IIRC other profiles with JIT turned on also showed a major regression in ORB start-up.


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