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JDK-6866591 : G1: print update buffer processing stats more often

Details
Type:
Enhancement
Submit Date:
2009-07-29
Status:
Closed
Updated Date:
2011-03-08
Project Name:
JDK
Resolved Date:
2011-03-08
Component:
hotspot
OS:
generic
Sub-Component:
gc
CPU:
generic
Priority:
P4
Resolution:
Fixed
Affected Versions:
hs16
Fixed Versions:
hs16 (b08)

Related Reports
Backport:
Backport:

Sub Tasks

Description
Right now, the information about how many update buffers have been processed can only be printed at the end of a run using the -XX:+G1SummarizeRSetStats diagnostic parameter. It'd be nice if we could print this information more regularly to see how it changes during a run.

                                    

Comments
EVALUATION

http://hg.openjdk.java.net/jdk7/hotspot-gc/hotspot/rev/83b687ce3090
                                     
2009-07-31
EVALUATION

http://hg.openjdk.java.net/jdk7/hotspot/hotspot/rev/83b687ce3090
                                     
2009-07-31
SUGGESTED FIX

The fix will also include two very minor formatting changes.
                                     
2009-07-30
EVALUATION

See Description.
                                     
2009-07-30
SUGGESTED FIX

I'm adding parameter -XX:G1SummarizeRSetStatsPeriod=N that will cause update buffer processing info to be dumped at every Nth GC.
                                     
2009-07-30



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