more funny log entries

Kirk Pepperdine kirk at kodewerk.com
Sat Nov 8 15:01:34 UTC 2014


Hi all,

I found this…

young with initial-mark
followed by a Full GC
in the middle of a complete concurrent mark cycle…

Looks like the Full GC didn’t interrupt the concurrent mark cycle. Is that a reasonable assumption?

java -version
1.7.0_51-b13 running on OSX (Mavericks)

Regards,
Kirk

 

100081.531: [GC pause (young) (initial-mark)100081.540: [SoftReference, 0 refs, 0.0000300 secs]100081.540: [WeakReference, 0 refs, 0.0000030 secs]100081.540: [FinalReference, 0 refs, 0.0000020 secs]100081.540: [PhantomReference, 0 refs, 0.0000030 secs]100081.540: [JNI Weak Reference, 0.0000030 secs], 0.0084910 secs]
   [Parallel Time: 6.0 ms, GC Workers: 8]
      [GC Worker Start (ms): Min: 100081533.5, Avg: 100081533.6, Max: 100081533.7, Diff: 0.2]
      [Ext Root Scanning (ms): Min: 0.1, Avg: 0.5, Max: 1.3, Diff: 1.2, Sum: 3.8]
      [Update RS (ms): Min: 0.0, Avg: 0.0, Max: 0.0, Diff: 0.0, Sum: 0.0]
         [Processed Buffers: Min: 0, Avg: 0.1, Max: 1, Diff: 1, Sum: 1]
      [Scan RS (ms): Min: 0.0, Avg: 0.0, Max: 0.0, Diff: 0.0, Sum: 0.0]
      [Object Copy (ms): Min: 3.5, Avg: 5.0, Max: 5.9, Diff: 2.4, Sum: 39.7]
      [Termination (ms): Min: 0.0, Avg: 0.5, Max: 1.4, Diff: 1.4, Sum: 4.1]
      [GC Worker Other (ms): Min: 0.0, Avg: 0.0, Max: 0.0, Diff: 0.0, Sum: 0.0]
      [GC Worker Total (ms): Min: 5.9, Avg: 6.0, Max: 6.0, Diff: 0.2, Sum: 47.6]
      [GC Worker End (ms): Min: 100081539.5, Avg: 100081539.5, Max: 100081539.6, Diff: 0.0]
   [Code Root Fixup: 0.0 ms]
   [Clear CT: 0.1 ms]
   [Other: 2.4 ms]
      [Choose CSet: 0.0 ms]
      [Ref Proc: 0.2 ms]
      [Ref Enq: 0.0 ms]
      [Free CSet: 0.0 ms]
   [Eden: 0.0B(25.0M)->0.0B(25.0M) Survivors: 0.0B->0.0B Heap: 510.9M(512.0M)->510.9M(512.0M)]
 [Times: user=0.01 sys=0.01, real=0.00 secs] 
100081.540: [Full GC100081.540: [GC concurrent-root-region-scan-start]
100081.540: [GC concurrent-root-region-scan-end, 0.0000080 secs]
100081.540: [GC concurrent-mark-start]
100084.860: [SoftReference, 22 refs, 0.0000340 secs]100084.860: [WeakReference, 169 refs, 0.0000180 secs]100084.860: [FinalReference, 18 refs, 0.0000050 secs]100084.860: [PhantomReference, 0 refs, 0.0000040 secs]100084.860: [JNI Weak Reference, 0.0000040 secs] 510M->510M(512M), 4.3335850 secs]
   [Eden: 0.0B(25.0M)->0.0B(25.0M) Survivors: 0.0B->0.0B Heap: 510.9M(512.0M)->510.9M(512.0M)]
 [Times: user=3.44 sys=1.62, real=4.34 secs] 
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