JDK-4771277 : Improve jar file reordering
  • Type: Bug
  • Component: hotspot
  • Sub-Component: runtime
  • Affected Version: 1.4.2
  • Priority: P4
  • Status: Closed
  • Resolution: Not an Issue
  • OS: generic
  • CPU: generic
  • Submitted: 2002-10-30
  • Updated: 2012-09-20
  • Resolved: 2012-09-20
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JDK 7
7-poolResolved
Related Reports
Relates :  
JDK-6184224 - function reorder (mapfiles) should be enabled for solaris amd64 platform
Relates :  
JDK-4771275 - Improve jar file reordering
Description
The JDK reordering makefiles need to be updated to handle the slightly different
output of -XX:+TraceClassLoadingPreorder as described in 4771275.
Comments
CONVERTED DATA BugTraq+ Release Management Values COMMIT TO FIX: dragon
14-06-2004
EVALUATION We tried the experiment of reordering rt.jar and the other jar files based on -XX:+TraceClassLoadingPreorder and found that it made cold start slightly worse. ###@###.### has produced graphs of the seek order within rt.jar during startup and found that the above flag doesn't substantially change the seek order and that there are significant discontinuities in the seek order during startup of moderately-sized graphical applications. It's likely that there are more significant gains to be had than those we thought possible by the use of -XX:+TraceClassLoadingPreorder. ###@###.### 2002-11-07 re-commit to post tiger work. i.e. dragon for now.
07-11-2002