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Bug 58252 - Add an object histogram feature, similar to jmap
Summary: Add an object histogram feature, similar to jmap
Status: RESOLVED FIXED
Alias: None
Product: profiler
Classification: Unclassified
Component: Base (show other bugs)
Version: 4.x
Hardware: All All
: P3 blocker (vote)
Assignee: issues@profiler
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2005-04-23 22:51 UTC by mishadmitriev
Modified: 2016-11-09 13:28 UTC (History)
0 users

See Also:
Issue Type: ENHANCEMENT
Exception Reporter:

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Description mishadmitriev 2005-04-23 22:51:10 UTC 
It would be useful to allow the user, esp. in the zero-overhead monitoring mode,
to hit a button and get (again in very short time) a histogram showing how much
memory is occupied by instances of each class. The jmap utility coming with JDK
1.5 provides this functionality. This does not allow any code instrumentation,
as the histogram is obtained by traversing the heap or a similar JVMTI mechanism.
Comment 1 mishadmitriev 2005-04-28 09:04:08 UTC 
After a conversation with Alan Bateman, it appears that this functionality can
be implemented using JVMTI calls and in a portable way.
Comment 2 Tomas Hurka 2009-04-08 12:53:36 UTC 
Milestone cleanup: future->next
Comment 3 Jiri Sedlacek 2016-11-09 13:28:09 UTC 
Already available.