JDK-6808808 : Per-generation class histograms with PrintClassHistogram*
  • Type: Enhancement
  • Component: hotspot
  • Sub-Component: gc
  • Affected Version: hs15
  • Priority: P3
  • Status: Closed
  • Resolution: Won't Fix
  • OS: generic
  • CPU: generic
  • Submitted: 2009-02-23
  • Updated: 2016-02-18
  • Resolved: 2016-02-18
Related Reports
Relates :  
JDK-6797870 - Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC
Description
Relativizing (or, to use IT-speak, virtualizing) the class histogram
reporting mechanism to a per-generation report might provide useful
profiling/debugging information for some kinds of customers/users.
Comments
SUGGESTED FIX Here's a preliminary webrev (sans the changes for 6797870):- http://analemma.sfbay.sun.com/net/spot/workspaces/ysr/genhisto/webrev This will of course change some as soon as the changes iof 6797870 are imported, at which time an updated webrev will be posted.
02-03-2009
EVALUATION Will, like 6797870, need CCC approval before it becomes officially supported. Will also need to be reviewed by the serviceability and tools groups.
23-02-2009