JDK-6946385 : G1: jstat does not support G1 GC
  • Type: Bug
  • Component: hotspot
  • Sub-Component: gc
  • Affected Version: 6u21,7
  • Priority: P3
  • Status: Closed
  • Resolution: Fixed
  • OS: generic
  • CPU: x86
  • Submitted: 2010-04-22
  • Updated: 2013-09-18
  • Resolved: 2011-05-10
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JDK 7 Other
7Fixed hs21Fixed
Related Reports
Relates :  
JDK-6946417 - G1: Java VisualVM does not support G1 properly.
Relates :  
JDK-7075646 - G1: fix inconsistencies in the monitoring data
Relates :  
JDK-6966967 - G1: SA: jmap and jstack do not work
Description
The jstat does not support G1 in the JDK6u21. 
The result is:
-->/net/vmsqe.russia/export/jdk/6/build/u21/linux-i586/bin/jstat -gc 15288
Warning: Unresolved Symbol: sun.gc.generation.0.space.1.capacity substituted NaN
Warning: Unresolved Symbol: sun.gc.generation.0.space.2.capacity substituted NaN
Warning: Unresolved Symbol: sun.gc.generation.0.space.1.used substituted NaN
Warning: Unresolved Symbol: sun.gc.generation.0.space.2.used substituted NaN
Warning: Unresolved Symbol: sun.gc.generation.0.space.0.capacity substituted NaN
Warning: Unresolved Symbol: sun.gc.generation.0.space.0.used substituted NaN
Warning: Unresolved Symbol: sun.gc.generation.1.space.0.capacity substituted NaN
Warning: Unresolved Symbol: sun.gc.generation.1.space.0.used substituted NaN
Warning: Unresolved Symbol: sun.gc.collector.0.invocations substituted NaN
Warning: Unresolved Symbol: sun.gc.collector.0.time substituted NaN
Warning: Unresolved Symbol: sun.gc.collector.1.invocations substituted NaN
Warning: Unresolved Symbol: sun.gc.collector.1.time substituted NaN
Warning: Unresolved Symbol: sun.gc.collector.0.time substituted NaN
Warning: Unresolved Symbol: sun.gc.collector.1.time substituted NaN
 S0C    S1C    S0U    S1U      EC       EU        OC         OU       PC     PU    YGC     YGCT    FGC    FGCT     GCT   
  ��      ��      ��      ��       ��        ��         ��          ��      16384.0 1944.5      ��        ��   ��          ��        ��
Comments
EVALUATION See http://hg.openjdk.java.net/jdk7/hotspot-gc/hotspot/rev/b52782ae3880
25-04-2011
EVALUATION http://hg.openjdk.java.net/jdk7/hotspot-rt/hotspot/rev/1d0b856224f8
23-04-2011
EVALUATION -
22-04-2010