add support for IBM J9 (R26)

[lijingmu]

Dear Author,
I encountered an exception when I parse GC log.
The jdk version of the GC log is
java version "1.6.0"
Java(TM) SE Runtime Environment (build pxa6460_26fp1-20110419_01)
IBM J9 VM (build 2.6, JRE 1.6.0 Linux amd64-64 20110418_80450 (JIT enabled, AOT enabled)
J9VM - R26_Java626_GA_FP1_20110418_1915_B80450
JIT - r11_20110215_18645ifx8
GC - R26_Java626_GA_FP1_20110418_1915_B80450
J9CL - 20110418_80450)
JCL - 20110401_01
Will you support this version?

Aug 16, 2013 8:32:22 PM com.tagtraum.perf.gcviewer.imp.DataReaderFacade loadModel
INFO: GCViewer version 1.32 (2013-08-16 18:13)
Aug 16, 2013 8:32:22 PM com.tagtraum.perf.gcviewer.imp.DataReaderFactory getDataReaderBySample
INFO: File format: Sun 1.4.x
Aug 16, 2013 8:32:22 PM com.tagtraum.perf.gcviewer.imp.DataReaderSun1_6_0 read
INFO: Reading Sun / Oracle 1.4.x / 1.5.x / 1.6.x / 1.7.x format...
Aug 16, 2013 8:32:22 PM com.tagtraum.perf.gcviewer.imp.DataReaderSun1_6_0 read
WARNING: com.tagtraum.perf.gcviewer.imp.UnknownGcTypeException: Unknown gc type: '

[chewiebug]

Dear lijingmu,
It looks like GCViewer didn't recognise your log file as an IBM J9 file. Would you please send me a sample log to gcviewer-info@googlegroups.com or gcviewer@gmx.ch.
Regards, Jörg

[acailley]

Hi !
it looks like we have the same issue with version="R27_Java727_SR1_20140707_1408_B205525_CMPRSS"

[chewiebug]

A few resources for this issue:

• sample file from Li Jing J Mu
  (R26_Java626_GA_FP1_20110418_1915_B80450_CMPRSS):
  https://groups.google.com/forum/#!topic/gcviewer-info/OwwxS_LL3o8
• sample file from Alain Cailley:
  (R27_Java727_SR1_20140707_1408_B205525_CMPRSS):
  https://groups.google.com/forum/#!topic/gcviewer-info/kUnbPsaTUC0
• understand IBM J9 (29 slides):
  http://www-01.ibm.com/support/docview.wss?uid=swg27013400&aid=1
• understand IBM J9 output (short):
  http://www.javacodegeeks.com/2012/04/ibm-jvm-tuning-gencon-gc-policy.html

[chewiebug]

Hi Alain,

I have started work on this feature. I will commit everything concerning this feature to branch featrue/#73/IBMJ9. If you'd like to check on the progress, please see there.

And please be patient - I don't know, when I'll be able to work on the parser.

Best regards,
Jörg