JDK-6346039 : Improve jmap -histo (and maybe -heap) for use with running applications
- Type: Enhancement
- Component: core-svc
- Sub-Component: tools
- Affected Version: 6
- Priority: P3
- Status: Resolved
- Resolution: Fixed
- OS: generic,solaris_9
- CPU: generic,sparc
- Submitted: 2005-11-04
- Updated: 2010-04-02
- Resolved: 2006-01-07
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| JDK 6 |
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6 b67Fixed  |
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Description
The jmap utility currently uses the attach API to implement the -dump option. It might be good to extend jmap so that it uses the same mechanism for -histo (and maybe -heap). This will make the utilities more usable for running applications on Solaris/Linux. Also it means that the options will become available on Windows.
At this time there is little motive to change the -permstat and -finalizerinfo options. If needed, the developer can obtain a heap dump and use jhat/OQL to do more powerful queries. Over time (post-mustang) we can look to update these other options too.
Also, output from jmap options contains a typo.
j2se/src/share/classes/sun/tools/jmap/JMap.java
System.out.println(" jmap [option] [server_id@]<remote server IP or hostname>");
System.out.println(" (to connect to remove debug server)");
remove needs to be remote :)
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