RFR: JDK-8175312: SA: clhsdb: Provide an improved heap summary for 'universe' for G1GC

Jini George jini.george at oracle.com
Tue Feb 27 07:37:26 UTC 2018


Gentle reminder!

Thanks,
Jini.

On 2/14/2018 2:37 PM, Jini George wrote:
> Hello,
> 
> (Including the SVC and GC groups)
> 
> Requesting reviews for enabling the clhsdb 'universe' command to print 
> out the various G1 regions (along with the type).
> 
> JIRA ID:https://bugs.openjdk.java.net/browse/JDK-8175312
> Webrev: http://cr.openjdk.java.net/~jgeorge/8175312/webrev.00/index.html
> 
> Modifications have been made to display the regions like:
> 
> ...
> Region: 0x00000005c5400000,0x00000005c5600000,0x00000005c5600000:Old
> Region: 0x00000005c5600000,0x00000005c5800000,0x00000005c5800000:Old
> Region: 0x00000005c5800000,0x00000005c5a00000,0x00000005c5a00000:Old
> Region: 0x00000005c5a00000,0x00000005c5c00000,0x00000005c5c00000:Old
> Region: 0x00000005c5c00000,0x00000005c5c00000,0x00000005c5e00000:Free
> Region: 0x00000005c5e00000,0x00000005c5e00000,0x00000005c6000000:Free
> Region: 0x00000005c6000000,0x00000005c6200000,0x00000005c6200000:Old
> ...
> 
> The jtreg test at this point does not include any testing for the 
> display of archived or pinned regions. The testing for this will be 
> added once JDK-8174994 is resolved.
> 
> The SA tests pass with jprt and Mach5.
> 
> Thanks,
> Jini.


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