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Used java version:
JVM: Eclipse OpenJ9 VM (openj9-0.24.0, JRE 15 Linux amd64-64-Bit Compressed References 20210121_172 (JIT enabled, AOT enabled)
OpenJ9 - 345e1b09e
OMR - 741e94ea8
JCL - 863b523566 based on jdk-15.0.2+7)
Java: version 15.0.2, vendor Eclipse OpenJ9
Java Home: /usr/lib/jvm/adoptopenjdk-15-openj9-jre-amd64
Results for 10 nodes:
2021-02-09 13:37:24,698 [INFO ] [node-runner-40 ] [c.r.c.b.p.BlockCreator$ ]- Creating block #1 (seqNum 1)
2021-02-09 13:38:37,414 [INFO ] [node-runner-43 ] [c.r.c.b.p.BlockCreator$ ]- Creating block #3 (seqNum 2)
2021-02-09 13:39:41,962 [INFO ] [node-runner-43 ] [c.r.c.b.p.BlockCreator$ ]- Creating block #5 (seqNum 3)
2021-02-09 13:40:44,630 [INFO ] [node-runner-41 ] [c.r.c.b.p.BlockCreator$ ]- Creating block #7 (seqNum 4)
2021-02-09 13:41:48,068 [INFO ] [node-runner-64 ] [c.r.c.b.p.BlockCreator$ ]- Creating block #9 (seqNum 5)
2021-02-09 13:42:50,709 [INFO ] [node-runner-65 ] [c.r.c.b.p.BlockCreator$ ]- Creating block #11 (seqNum 6)
2021-02-09 13:43:56,771 [INFO ] [node-runner-42 ] [c.r.c.b.p.BlockCreator$ ]- Creating block #13 (seqNum 7)
2021-02-09 13:45:01,835 [INFO ] [node-runner-58 ] [c.r.c.b.p.BlockCreator$ ]- Creating block #15 (seqNum 8)
2021-02-09 13:46:05,534 [INFO ] [node-runner-64 ] [c.r.c.b.p.BlockCreator$ ]- Creating block #17 (seqNum 9)
2021-02-09 13:47:09,370 [INFO ] [node-runner-41 ] [c.r.c.b.p.BlockCreator$ ]- Creating block #19 (seqNum 10)
2021-02-09 13:48:13,759 [INFO ] [node-runner-43 ] [c.r.c.b.p.BlockCreator$ ]- Creating block #21 (seqNum 11)
2021-02-09 13:49:18,767 [INFO ] [node-runner-58 ] [c.r.c.b.p.BlockCreator$ ]- Creating block #23 (seqNum 12)
2021-02-09 13:50:23,405 [INFO ] [node-runner-43 ] [c.r.c.b.p.BlockCreator$ ]- Creating block #25 (seqNum 13)
2021-02-09 13:51:27,559 [INFO ] [node-runner-43 ] [c.r.c.b.p.BlockCreator$ ]- Creating block #27 (seqNum 14)
2021-02-09 13:52:32,111 [INFO ] [node-runner-40 ] [c.r.c.b.p.BlockCreator$ ]- Creating block #29 (seqNum 15)
2021-02-09 13:53:38,799 [INFO ] [node-runner-39 ] [c.r.c.b.p.BlockCreator$ ]- Creating block #31 (seqNum 16)
2021-02-09 13:54:43,795 [INFO ] [node-runner-57 ] [c.r.c.b.p.BlockCreator$ ]- Creating block #33 (seqNum 17)
2021-02-09 13:55:48,992 [INFO ] [node-runner-65 ] [c.r.c.b.p.BlockCreator$ ]- Creating block #35 (seqNum 18)
2021-02-09 13:56:55,078 [INFO ] [node-runner-39 ] [c.r.c.b.p.BlockCreator$ ]- Creating block #37 (seqNum 19)
2021-02-09 13:58:00,981 [INFO ] [node-runner-63 ] [c.r.c.b.p.BlockCreator$ ]- Creating block #39 (seqNum 20)
Number of blocks created: 1236s / 190 blocks => 6.5s per block
Merging time: ~2.9s
Results for 20 nodes:
2021-02-09 14:16:11,370 [INFO ] [node-runner-80 ] [c.r.c.b.p.BlockCreator$ ]- Creating block #1 (seqNum 1)
2021-02-09 14:18:30,014 [INFO ] [node-runner-51 ] [c.r.c.b.p.BlockCreator$ ]- Creating block #3 (seqNum 2)
2021-02-09 14:20:21,776 [INFO ] [node-runner-79 ] [c.r.c.b.p.BlockCreator$ ]- Creating block #5 (seqNum 3)
2021-02-09 14:22:15,623 [INFO ] [node-runner-77 ] [c.r.c.b.p.BlockCreator$ ]- Creating block #7 (seqNum 4)
2021-02-09 14:24:08,155 [INFO ] [node-runner-79 ] [c.r.c.b.p.BlockCreator$ ]- Creating block #9 (seqNum 5)
2021-02-09 14:26:00,103 [INFO ] [node-runner-72 ] [c.r.c.b.p.BlockCreator$ ]- Creating block #11 (seqNum 6)
2021-02-09 14:27:49,455 [INFO ] [node-runner-83 ] [c.r.c.b.p.BlockCreator$ ]- Creating block #13 (seqNum 7)
2021-02-09 14:29:42,195 [INFO ] [node-runner-72 ] [c.r.c.b.p.BlockCreator$ ]- Creating block #15 (seqNum 8)
2021-02-09 14:31:35,056 [INFO ] [node-runner-72 ] [c.r.c.b.p.BlockCreator$ ]- Creating block #17 (seqNum 9)
2021-02-09 14:33:25,832 [INFO ] [node-runner-68 ] [c.r.c.b.p.BlockCreator$ ]- Creating block #19 (seqNum 10)
2021-02-09 14:35:20,014 [INFO ] [node-runner-84 ] [c.r.c.b.p.BlockCreator$ ]- Creating block #21 (seqNum 11)
Number of blocks created: 1140 / 190 = 6s/block
Merging time: ~6.3s
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