Attachment 1837207 Details for Bug 1862163 – GC log from Java 8 181 with the reproduction snippet.

GC log from Java 8 181 with the reproduction snippet.

java8_181_gclog.txt (text/plain), 2.83 KB, created by Simeon Andreev on 2021-10-26 13:49:52 UTC

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Creator: Simeon Andreev

Created: 2021-10-26 13:49:52 UTC

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>Java HotSpot(TM) 64-Bit Server VM (25.181-b13) for linux-amd64 JRE (1.8.0_181-b13), built on Jul  7 2018 00:56:38 by "java_re" with gcc 4.3.0 20080428 (Red Hat 4.3.0-8)
>Memory: 4k page, physical 131575664k(100626428k free), swap 8191996k(7332604k free)
>CommandLine flags: -XX:InitialHeapSize=536870912 -XX:MaxHeapSize=8589934592 -XX:+PrintGC -XX:+PrintGCDetails -XX:+PrintGCTimeStamps -XX:+UseCompressedClassPointers -XX:+UseCompressedOops -XX:+UseG1GC 
>0.285: [GC pause (G1 Humongous Allocation) (young) (initial-mark), 0.6424174 secs]
>   [Parallel Time: 641.7 ms, GC Workers: 13]
>      [GC Worker Start (ms): Min: 285.0, Avg: 285.1, Max: 285.2, Diff: 0.2]
>      [Ext Root Scanning (ms): Min: 0.1, Avg: 0.2, Max: 0.3, Diff: 0.2, Sum: 2.6]
>      [Update RS (ms): Min: 6.0, Avg: 6.9, Max: 8.3, Diff: 2.3, Sum: 89.1]
>         [Processed Buffers: Min: 5, Avg: 5.8, Max: 7, Diff: 2, Sum: 75]
>      [Scan RS (ms): Min: 327.5, Avg: 329.1, Max: 330.2, Diff: 2.7, Sum: 4278.0]
>      [Code Root Scanning (ms): Min: 0.0, Avg: 0.0, Max: 0.0, Diff: 0.0, Sum: 0.0]
>      [Object Copy (ms): Min: 300.6, Avg: 301.3, Max: 305.3, Diff: 4.8, Sum: 3917.0]
>      [Termination (ms): Min: 0.0, Avg: 4.0, Max: 4.7, Diff: 4.7, Sum: 52.3]
>         [Termination Attempts: Min: 1, Avg: 5106.8, Max: 5883, Diff: 5882, Sum: 66388]
>      [GC Worker Other (ms): Min: 0.0, Avg: 0.0, Max: 0.0, Diff: 0.0, Sum: 0.2]
>      [GC Worker Total (ms): Min: 641.3, Avg: 641.5, Max: 641.5, Diff: 0.2, Sum: 8339.2]
>      [GC Worker End (ms): Min: 926.5, Avg: 926.5, Max: 926.5, Diff: 0.0]
>   [Code Root Fixup: 0.0 ms]
>   [Code Root Purge: 0.0 ms]
>   [Clear CT: 0.1 ms]
>   [Other: 0.7 ms]
>      [Choose CSet: 0.0 ms]
>      [Ref Proc: 0.1 ms]
>      [Ref Enq: 0.0 ms]
>      [Redirty Cards: 0.4 ms]
>      [Humongous Register: 0.0 ms]
>      [Humongous Reclaim: 0.0 ms]
>      [Free CSet: 0.0 ms]
>   [Eden: 2048.0K(24.0M)->0.0B(22.0M) Survivors: 0.0B->2048.0K Heap: 214.6M(512.0M)->214.2M(512.0M)]
> [Times: user=4.96 sys=0.50, real=0.64 secs] 
>0.927: [GC concurrent-root-region-scan-start]
>0.942: [GC concurrent-root-region-scan-end, 0.0144588 secs]
>0.942: [GC concurrent-mark-start]
>0.966: [GC concurrent-mark-end, 0.0238263 secs]
>0.968: [GC remark 0.968: [Finalize Marking, 0.0009393 secs] 0.969: [GC ref-proc, 0.0002114 secs] 0.969: [Unloading, 0.0004541 secs], 0.0017673 secs]
> [Times: user=0.02 sys=0.00, real=0.00 secs] 
>0.972: [GC cleanup 275M->69M(512M), 0.0005306 secs]
> [Times: user=0.00 sys=0.00, real=0.00 secs] 
>0.972: [GC concurrent-cleanup-start]
>0.973: [GC concurrent-cleanup-end, 0.0001094 secs]
>Heap
> garbage-first heap   total 7987200K, used 7610006K [0x00000005c0000000, 0x00000005c02079e0, 0x00000007c0000000)
>  region size 2048K, 2 young (4096K), 1 survivors (2048K)
> Metaspace       used 2608K, capacity 4490K, committed 4864K, reserved 1056768K
>  class space    used 284K, capacity 386K, committed 512K, reserved 1048576K

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Attachments on bug 1862163: 1710962 | 1710967 | 1710981 | 1710982 | 1710983 | 1710985 | 1733753 | 1733754 | 1733828 | 1734031 | 1837207 | 1837208 | 1838349 | 1847239 | 1847240