JDK-6867494 : Add ability to select shared class archive to be used
  • Type: Enhancement
  • Component: hotspot
  • Sub-Component: runtime
  • Affected Version: 6
  • Priority: P4
  • Status: Closed
  • Resolution: Won't Fix
  • OS: generic
  • CPU: generic
  • Submitted: 2009-07-31
  • Updated: 2014-03-10
  • Resolved: 2014-03-07
Related Reports
Relates :  
JDK-6867496 - Add plugin-specific classes.jsa
Relates :  
JDK-8014138 - Add VM option to facilitate the writing of CDS tests
Relates :  
JDK-6797730 - Umbrella: Applet startup performance improvements
Relates :  
JDK-6929784 - Allow specifying name of Class Data Sharing classlist and archive
Description
Including deployment classes into classes.jsa improves warm start time for plugin benchmarks (by 2-3%) but 
increase of size of classes.jsa have negative impact on other benchmarks.
See experiment details in the comments section.

It would be nice to have ability to use different shared archive in the plugin mode.
E.g. pass it as command line option.
Comments
RT Triage team: please see last comment. WNF.
07-03-2014
We have a diagnostic-mode flag for this; adding this in product mode requires further justification. Current location of the boot csa file also has additional protection.
07-03-2014
JDK-8014138 adds SharedArchiveFile flag (but made that only a dignostic option).
15-10-2013
EVALUATION Usefulness of separate shared archive for plugin is questionable.
22-10-2009