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gc11.log
# JDK 11.0.5+10 has no load when idle
# parameters: -Xmx233g -Xms233g -XX:+AlwaysPreTouch -XX:+UnlockExperimentalVMOptions -XX:+UseZGC -Xloggc:gc.log -XX:MetaspaceSize=100M -XX:+PrintGCDetails
# Only under load we sometimes get a similar output like GC17:
[65420.407s][info][gc,start ] GC(2940) Garbage Collection (Allocation Rate)
[65420.408s][info][gc,phases ] GC(2940) Pause Mark Start 0.598ms
[65420.431s][info][gc,phases ] GC(2940) Concurrent Mark 22.847ms
[65420.431s][info][gc,phases ] GC(2940) Pause Mark End 0.079ms
[65420.432s][info][gc,phases ] GC(2940) Concurrent Process Non-Strong References 0.564ms
[65420.432s][info][gc,phases ] GC(2940) Concurrent Reset Relocation Set 0.025ms
[65420.432s][info][gc,phases ] GC(2940) Concurrent Destroy Detached Pages 0.000ms
[65420.433s][info][gc,phases ] GC(2940) Concurrent Select Relocation Set 1.618ms
[65420.433s][info][gc,phases ] GC(2940) Concurrent Prepare Relocation Set 0.092ms
[65420.434s][info][gc,phases ] GC(2940) Pause Relocate Start 1.061ms
[65420.437s][info][gc,phases ] GC(2940) Concurrent Relocate 2.216ms
[65420.437s][info][gc,load ] GC(2940) Load: 0.33/0.31/0.26
[65420.437s][info][gc,mmu ] GC(2940) MMU: 2ms/0.0%, 5ms/0.0%, 10ms/0.0%, 20ms/32.3%, 50ms/71.5%, 100ms/81.9%
[65420.437s][info][gc,marking ] GC(2940) Mark: 2 stripe(s), 2 proactive flush(es), 1 terminate flush(es), 0 completion(s), 0 continuation(s)
[65420.437s][info][gc,reloc ] GC(2940) Relocation: Successful, 27M relocated
[65420.437s][info][gc,nmethod ] GC(2940) NMethods: 6730 registered, 2961 unregistered
[65420.437s][info][gc,metaspace] GC(2940) Metaspace: 51M used, 52M capacity, 52M committed, 54M reserved
[65420.437s][info][gc,ref ] GC(2940) Soft: 2013 encountered, 261 discovered, 0 enqueued
[65420.437s][info][gc,ref ] GC(2940) Weak: 2370 encountered, 1555 discovered, 1 enqueued
[65420.437s][info][gc,ref ] GC(2940) Final: 4 encountered, 2 discovered, 0 enqueued
[65420.437s][info][gc,ref ] GC(2940) Phantom: 576 encountered, 571 discovered, 2 enqueued
[65420.437s][info][gc,heap ] GC(2940) Mark Start Mark End Relocate Start Relocate End High Low
[65420.437s][info][gc,heap ] GC(2940) Capacity: 238592M (100%) 238592M (100%) 238592M (100%) 238592M (100%) 238592M (100%) 238592M (100%)
[65420.437s][info][gc,heap ] GC(2940) Reserve: 48M (0%) 48M (0%) 48M (0%) 48M (0%) 48M (0%) 48M (0%)
[65420.437s][info][gc,heap ] GC(2940) Free: 176M (0%) 160M (0%) 3484M (1%) 3706M (2%) 3706M (2%) 160M (0%)
[65420.437s][info][gc,heap ] GC(2940) Used: 238368M (100%) 238384M (100%) 235060M (99%) 234838M (98%) 238384M (100%) 234838M (98%)
[65420.437s][info][gc,heap ] GC(2940) Live: - 234698M (98%) 234698M (98%) 234698M (98%) - -
[65420.437s][info][gc,heap ] GC(2940) Allocated: - 16M (0%) 18M (0%) 36M (0%) - -
[65420.437s][info][gc,heap ] GC(2940) Garbage: - 3669M (2%) 343M (0%) 119M (0%) - -
[65420.437s][info][gc,heap ] GC(2940) Reclaimed: - - 3326M (1%) 3550M (1%) - -
[65420.437s][info][gc ] GC(2940) Garbage Collection (Allocation Rate) 238368M(100%)->234838M(98%)
Raw
gc17.log
# JDK 17.0.5+8 has load of usually 3 cores at 15-25% when idle
# parameters: -Xmx233g -Xms233g -XX:+AlwaysPreTouch -XX:-ZProactive -XX:+UnlockExperimentalVMOptions -XX:+UseZGC -Xloggc:logs/matrix.shared-motor-edge-big.gc.log -XX:MetaspaceSize=100M -XX:+PrintGCDetails
# application get's no load and still the GC runs right from the start:
[0.031s][info][gc,init] Initializing The Z Garbage Collector
[0.031s][info][gc,init] Version: 17.0.5+8 (release)
[0.031s][info][gc,init] NUMA Support: Disabled
[0.031s][info][gc,init] CPUs: 12 total, 12 available
[0.031s][info][gc,init] Memory: 257643M
[0.031s][info][gc,init] Large Page Support: Disabled
[0.031s][info][gc,init] GC Workers: 3 (dynamic)
[0.031s][info][gc,init] Address Space Type: Contiguous/Unrestricted/Complete
[0.031s][info][gc,init] Address Space Size: 3817472M x 3 = 11452416M
[0.031s][info][gc,init] Heap Backing File: /memfd:java_heap
[0.031s][info][gc,init] Heap Backing Filesystem: tmpfs (0x1021994)
[0.031s][info][gc,init] Min Capacity: 238592M
[0.031s][info][gc,init] Initial Capacity: 238592M
[0.031s][info][gc,init] Max Capacity: 238592M
[0.031s][info][gc,init] Medium Page Size: 32M
[0.031s][info][gc,init] Pre-touch: Enabled
[0.031s][info][gc,init] Available space on backing filesystem: N/A
[0.031s][info][gc,init] Uncommit: Implicitly Disabled (-Xms equals -Xmx)
[108.454s][info][gc,init] Runtime Workers: 8
[108.455s][info][gc ] Using The Z Garbage Collector
[108.455s][info][gc,metaspace] CDS archive(s) mapped at: [0x0000000800000000-0x0000000800bb6000-0x0000000800bb6000), size 12279808, SharedBaseAddress: 0x0000000800000000, ArchiveRelocationM
[108.455s][info][gc,metaspace] Compressed class space mapped at: 0x0000000800c00000-0x0000000840c00000, reserved size: 1073741824
[108.455s][info][gc,metaspace] Narrow klass base: 0x0000000800000000, Narrow klass shift: 0, Narrow klass range: 0x100000000
...
[394.880s][info][gc,start ] GC(369) Garbage Collection (High Usage)
[394.880s][info][gc,task ] GC(369) Using 3 workers
[394.880s][info][gc,phases ] GC(369) Pause Mark Start 0.004ms
[394.893s][info][gc,phases ] GC(369) Concurrent Mark 13.095ms
[394.893s][info][gc,phases ] GC(369) Pause Mark End 0.011ms
[394.893s][info][gc,phases ] GC(369) Concurrent Mark Free 0.001ms
[394.896s][info][gc,phases ] GC(369) Concurrent Process Non-Strong References 2.426ms
[394.896s][info][gc,phases ] GC(369) Concurrent Reset Relocation Set 0.001ms
[394.897s][info][gc,phases ] GC(369) Concurrent Select Relocation Set 1.252ms
[394.897s][info][gc,phases ] GC(369) Pause Relocate Start 0.007ms
[394.898s][info][gc,phases ] GC(369) Concurrent Relocate 0.733ms
[394.898s][info][gc,load ] GC(369) Load: 2.23/2.57/1.74
[394.898s][info][gc,mmu ] GC(369) MMU: 2ms/0.0%, 5ms/0.0%, 10ms/15.4%, 20ms/57.7%, 50ms/76.6%, 100ms/88.3%
[394.898s][info][gc,marking ] GC(369) Mark: 2 stripe(s), 2 proactive flush(es), 1 terminate flush(es), 0 completion(s), 0 continuation(s)
[394.898s][info][gc,marking ] GC(369) Mark Stack Usage: 32M
[394.898s][info][gc,nmethod ] GC(369) NMethods: 4710 registered, 0 unregistered
[394.898s][info][gc,metaspace] GC(369) Metaspace: 33M used, 33M committed, 1056M reserved
[394.898s][info][gc,ref ] GC(369) Soft: 4409 encountered, 0 discovered, 0 enqueued
[394.898s][info][gc,ref ] GC(369) Weak: 2398 encountered, 553 discovered, 0 enqueued
[394.898s][info][gc,ref ] GC(369) Final: 0 encountered, 0 discovered, 0 enqueued
[394.898s][info][gc,ref ] GC(369) Phantom: 540 encountered, 22 discovered, 0 enqueued
[394.898s][info][gc,reloc ] GC(369) Small Pages: 12 / 24M, Empty: 0M, Relocated: 1M, In-Place: 0
[394.898s][info][gc,reloc ] GC(369) Medium Pages: 103 / 3296M, Empty: 0M, Relocated: 0M, In-Place: 0
[394.898s][info][gc,reloc ] GC(369) Large Pages: 12858 / 231444M, Empty: 0M, Relocated: 0M, In-Place: 0
[394.898s][info][gc,reloc ] GC(369) Forwarding Usage: 0M
[394.898s][info][gc,heap ] GC(369) Min Capacity: 238592M(100%)
[394.898s][info][gc,heap ] GC(369) Max Capacity: 238592M(100%)
[394.898s][info][gc,heap ] GC(369) Soft Max Capacity: 238592M(100%)
[394.898s][info][gc,heap ] GC(369) Mark Start Mark End Relocate Start Relocate End High Low
[394.898s][info][gc,heap ] GC(369) Capacity: 238592M (100%) 238592M (100%) 238592M (100%) 238592M (100%) 238592M (100%) 238592M (100%)
[394.898s][info][gc,heap ] GC(369) Free: 3828M (2%) 3826M (2%) 3826M (2%) 3828M (2%) 3828M (2%) 3822M (2%)
[394.898s][info][gc,heap ] GC(369) Used: 234764M (98%) 234766M (98%) 234766M (98%) 234764M (98%) 234770M (98%) 234764M (98%)
[394.898s][info][gc,heap ] GC(369) Live: - 234654M (98%) 234654M (98%) 234654M (98%) - -
[394.898s][info][gc,heap ] GC(369) Allocated: - 2M (0%) 2M (0%) 2M (0%) - -
[394.898s][info][gc,heap ] GC(369) Garbage: - 109M (0%) 109M (0%) 107M (0%) - -
[394.898s][info][gc,heap ] GC(369) Reclaimed: - - 0M (0%) 2M (0%) - -
[394.898s][info][gc ] GC(369) Garbage Collection (High Usage) 234764M(98%)->234764M(98%)
[394.980s][info][gc,start ] GC(370) Garbage Collection (High Usage)
[394.980s][info][gc,task ] GC(370) Using 3 workers
[394.980s][info][gc,phases ] GC(370) Pause Mark Start 0.010ms
[394.994s][info][gc,phases ] GC(370) Concurrent Mark 13.827ms
[394.994s][info][gc,phases ] GC(370) Pause Mark End 0.011ms
[394.994s][info][gc,phases ] GC(370) Concurrent Mark Free 0.001ms
[394.997s][info][gc,phases ] GC(370) Concurrent Process Non-Strong References 2.477ms
[394.997s][info][gc,phases ] GC(370) Concurrent Reset Relocation Set 0.001ms
[394.998s][info][gc,phases ] GC(370) Concurrent Select Relocation Set 1.311ms
[394.998s][info][gc,phases ] GC(370) Pause Relocate Start 0.006ms
[394.999s][info][gc,phases ] GC(370) Concurrent Relocate 0.729ms
[394.999s][info][gc,load ] GC(370) Load: 2.23/2.57/1.74
[394.999s][info][gc,mmu ] GC(370) MMU: 2ms/0.0%, 5ms/0.0%, 10ms/15.4%, 20ms/57.7%, 50ms/76.6%, 100ms/88.3%
[394.999s][info][gc,marking ] GC(370) Mark: 2 stripe(s), 2 proactive flush(es), 1 terminate flush(es), 0 completion(s), 0 continuation(s)
[394.999s][info][gc,marking ] GC(370) Mark Stack Usage: 32M
[394.999s][info][gc,nmethod ] GC(370) NMethods: 4710 registered, 0 unregistered
[394.999s][info][gc,metaspace] GC(370) Metaspace: 33M used, 33M committed, 1056M reserved
[394.999s][info][gc,ref ] GC(370) Soft: 4409 encountered, 0 discovered, 0 enqueued
[394.999s][info][gc,ref ] GC(370) Weak: 2398 encountered, 340 discovered, 0 enqueued
[394.999s][info][gc,ref ] GC(370) Final: 0 encountered, 0 discovered, 0 enqueued
[394.999s][info][gc,ref ] GC(370) Phantom: 540 encountered, 22 discovered, 0 enqueued
[394.999s][info][gc,reloc ] GC(370) Small Pages: 12 / 24M, Empty: 0M, Relocated: 1M, In-Place: 0
[394.999s][info][gc,reloc ] GC(370) Medium Pages: 103 / 3296M, Empty: 0M, Relocated: 0M, In-Place: 0
[394.999s][info][gc,reloc ] GC(370) Large Pages: 12858 / 231444M, Empty: 0M, Relocated: 0M, In-Place: 0
[394.999s][info][gc,reloc ] GC(370) Forwarding Usage: 0M
[394.999s][info][gc,heap ] GC(370) Min Capacity: 238592M(100%)
[394.999s][info][gc,heap ] GC(370) Max Capacity: 238592M(100%)
[394.999s][info][gc,heap ] GC(370) Soft Max Capacity: 238592M(100%)
[394.999s][info][gc,heap ] GC(370) Mark Start Mark End Relocate Start Relocate End High Low
[394.999s][info][gc,heap ] GC(370) Capacity: 238592M (100%) 238592M (100%) 238592M (100%) 238592M (100%) 238592M (100%) 238592M (100%)
[394.999s][info][gc,heap ] GC(370) Free: 3828M (2%) 3826M (2%) 3826M (2%) 3828M (2%) 3828M (2%) 3822M (2%)
[394.999s][info][gc,heap ] GC(370) Used: 234764M (98%) 234766M (98%) 234766M (98%) 234764M (98%) 234770M (98%) 234764M (98%)
[394.999s][info][gc,heap ] GC(370) Live: - 234654M (98%) 234654M (98%) 234654M (98%) - -
[394.999s][info][gc,heap ] GC(370) Allocated: - 2M (0%) 2M (0%) 2M (0%) - -
[394.999s][info][gc,heap ] GC(370) Garbage: - 109M (0%) 109M (0%) 107M (0%) - -
[394.999s][info][gc,heap ] GC(370) Reclaimed: - - 0M (0%) 2M (0%) - -
[394.999s][info][gc ] GC(370) Garbage Collection (High Usage) 234764M(98%)->234764M(98%)
...
# increasing the RAM (-Xmx243g -Xms243g)
# Now, only under load we sometimes get a similar output:
[509.741s][info][gc,start ] GC(9) Garbage Collection (High Usage)
[509.741s][info][gc,task ] GC(9) Using 3 workers
[509.741s][info][gc,phases ] GC(9) Pause Mark Start 0.008ms
[509.773s][info][gc,phases ] GC(9) Concurrent Mark 31.804ms
[509.773s][info][gc,phases ] GC(9) Pause Mark End 0.010ms
[509.774s][info][gc,phases ] GC(9) Concurrent Mark Free 0.001ms
[509.778s][info][gc,phases ] GC(9) Concurrent Process Non-Strong References 4.632ms
[509.778s][info][gc,phases ] GC(9) Concurrent Reset Relocation Set 0.003ms
[509.780s][info][gc,phases ] GC(9) Concurrent Select Relocation Set 1.847ms
[509.780s][info][gc,phases ] GC(9) Pause Relocate Start 0.008ms
[509.789s][info][gc,phases ] GC(9) Concurrent Relocate 8.670ms
[509.789s][info][gc,load ] GC(9) Load: 0.64/1.96/1.79
[509.789s][info][gc,mmu ] GC(9) MMU: 2ms/0.0%, 5ms/0.0%, 10ms/0.0%, 20ms/0.0%, 50ms/46.2%, 100ms/71.9%
[509.789s][info][gc,marking ] GC(9) Mark: 2 stripe(s), 2 proactive flush(es), 1 terminate flush(es), 0 completion(s), 0 continuation(s)
[509.789s][info][gc,marking ] GC(9) Mark Stack Usage: 32M
[509.789s][info][gc,nmethod ] GC(9) NMethods: 7716 registered, 583 unregistered
[509.789s][info][gc,metaspace] GC(9) Metaspace: 48M used, 49M committed, 1072M reserved
[509.789s][info][gc,ref ] GC(9) Soft: 4993 encountered, 0 discovered, 0 enqueued
[509.789s][info][gc,ref ] GC(9) Weak: 4480 encountered, 600 discovered, 267 enqueued
[509.789s][info][gc,ref ] GC(9) Final: 1 encountered, 0 discovered, 0 enqueued
[509.789s][info][gc,ref ] GC(9) Phantom: 765 encountered, 241 discovered, 204 enqueued
[509.789s][info][gc,reloc ] GC(9) Small Pages: 783 / 1566M, Empty: 964M, Relocated: 23M, In-Place: 0
[509.789s][info][gc,reloc ] GC(9) Medium Pages: 103 / 3296M, Empty: 0M, Relocated: 0M, In-Place: 0
[509.789s][info][gc,reloc ] GC(9) Large Pages: 12864 / 231540M, Empty: 54M, Relocated: 0M, In-Place: 0
[509.789s][info][gc,reloc ] GC(9) Forwarding Usage: 7M
[509.789s][info][gc,heap ] GC(9) Min Capacity: 248832M(100%)
[509.789s][info][gc,heap ] GC(9) Max Capacity: 248832M(100%)
[509.789s][info][gc,heap ] GC(9) Soft Max Capacity: 248832M(100%)
[509.789s][info][gc,heap ] GC(9) Mark Start Mark End Relocate Start Relocate End High Low
[509.789s][info][gc,heap ] GC(9) Capacity: 248832M (100%) 248832M (100%) 248832M (100%) 248832M (100%) 248832M (100%) 248832M (100%)
[509.789s][info][gc,heap ] GC(9) Free: 12430M (5%) 12402M (5%) 13418M (5%) 13960M (6%) 13960M (6%) 12400M (5%)
[509.789s][info][gc,heap ] GC(9) Used: 236402M (95%) 236430M (95%) 235414M (95%) 234872M (94%) 236432M (95%) 234872M (94%)
[509.789s][info][gc,heap ] GC(9) Live: - 234730M (94%) 234730M (94%) 234730M (94%) - -
[509.789s][info][gc,heap ] GC(9) Allocated: - 28M (0%) 30M (0%) 32M (0%) - -
[509.789s][info][gc,heap ] GC(9) Garbage: - 1671M (1%) 653M (0%) 108M (0%) - -
[509.789s][info][gc,heap ] GC(9) Reclaimed: - - 1018M (0%) 1562M (1%) - -
[509.789s][info][gc ] GC(9) Garbage Collection (High Usage) 236402M(95%)->234872M(94%)
[510.242s][info][gc,stats ] === Garbage Collection Statistics =======================================================================================================================
[510.242s][info][gc,stats ] Last 10s Last 10m Last 10h Total
[510.242s][info][gc,stats ] Avg / Max Avg / Max Avg / Max Avg / Max
[510.242s][info][gc,stats ] Collector: Garbage Collection Cycle 47.674 / 47.674 163.093 / 301.170 163.093 / 301.170 163.093 / 301.170 ms
[510.242s][info][gc,stats ] Contention: Mark Segment Reset Contention 0 / 1 0 / 3 0 / 3 0 / 3 ops/s
[510.242s][info][gc,stats ] Contention: Mark SeqNum Reset Contention 0 / 0 0 / 1 0 / 1 0 / 1 ops/s
[510.242s][info][gc,stats ] Critical: Allocation Stall 0 / 0 0 / 0 0 / 0 0 / 0 ops/s
[510.242s][info][gc,stats ] Critical: Allocation Stall 0.000 / 0.000 0.000 / 0.000 0.000 / 0.000 0.000 / 0.000 ms
[510.242s][info][gc,stats ] Critical: GC Locker Stall 0 / 0 0 / 0 0 / 0 0 / 0 ops/s
[510.242s][info][gc,stats ] Critical: GC Locker Stall 0.000 / 0.000 0.000 / 0.000 0.000 / 0.000 0.000 / 0.000 ms
[510.242s][info][gc,stats ] Critical: Relocation Stall 0 / 0 0 / 0 0 / 0 0 / 0 ops/s
[510.242s][info][gc,stats ] Critical: Relocation Stall 0.000 / 0.000 0.000 / 0.000 0.000 / 0.000 0.000 / 0.000 ms
[510.242s][info][gc,stats ] Memory: Allocation Rate 59 / 254 596 / 1174 596 / 1174 596 / 1174 MB/s
[510.242s][info][gc,stats ] Memory: Out Of Memory 0 / 0 0 / 0 0 / 0 0 / 0 ops/s
[510.242s][info][gc,stats ] Memory: Page Cache Flush 0 / 0 0 / 0 0 / 0 0 / 0 MB/s
[510.242s][info][gc,stats ] Memory: Page Cache Hit L1 4 / 43 1 / 96 1 / 96 1 / 96 ops/s
[510.242s][info][gc,stats ] Memory: Page Cache Hit L2 0 / 0 0 / 0 0 / 0 0 / 0 ops/s
[510.242s][info][gc,stats ] Memory: Page Cache Hit L3 25 / 82 34 / 106 34 / 106 34 / 106 ops/s
[510.242s][info][gc,stats ] Memory: Page Cache Miss 0 / 0 0 / 1 0 / 1 0 / 1 ops/s
[510.242s][info][gc,stats ] Memory: Uncommit 0 / 0 0 / 0 0 / 0 0 / 0 MB/s
[510.242s][info][gc,stats ] Memory: Undo Object Allocation Failed 0 / 0 0 / 0 0 / 0 0 / 0 ops/s
[510.242s][info][gc,stats ] Memory: Undo Object Allocation Succeeded 0 / 0 0 / 1 0 / 1 0 / 1 ops/s
[510.242s][info][gc,stats ] Memory: Undo Page Allocation 0 / 0 0 / 0 0 / 0 0 / 0 ops/s
[510.242s][info][gc,stats ] Phase: Concurrent Mark 31.804 / 31.804 44.451 / 93.531 44.451 / 93.531 44.451 / 93.531 ms
[510.242s][info][gc,stats ] Phase: Concurrent Mark Continue 0.000 / 0.000 0.000 / 0.000 0.000 / 0.000 0.000 / 0.000 ms
[510.242s][info][gc,stats ] Phase: Concurrent Mark Free 0.001 / 0.001 0.001 / 0.002 0.001 / 0.002 0.001 / 0.002 ms
[510.242s][info][gc,stats ] Phase: Concurrent Process Non-Strong References 4.632 / 4.632 54.188 / 122.852 54.188 / 122.852 54.188 / 122.852 ms
[510.242s][info][gc,stats ] Phase: Concurrent Relocate 8.670 / 8.670 3.008 / 9.600 3.008 / 9.600 3.008 / 9.600 ms
[510.242s][info][gc,stats ] Phase: Concurrent Reset Relocation Set 0.003 / 0.003 0.007 / 0.039 0.007 / 0.039 0.007 / 0.039 ms
[510.242s][info][gc,stats ] Phase: Concurrent Select Relocation Set 1.847 / 1.847 1.431 / 3.254 1.431 / 3.254 1.431 / 3.254 ms
[510.242s][info][gc,stats ] Phase: Pause Mark End 0.010 / 0.010 2.555 / 11.379 2.555 / 11.379 2.555 / 11.379 ms
[510.242s][info][gc,stats ] Phase: Pause Mark Start 0.008 / 0.008 7.798 / 26.917 7.798 / 26.917 7.798 / 26.917 ms
[510.242s][info][gc,stats ] Phase: Pause Relocate Start 0.008 / 0.008 0.009 / 0.010 0.009 / 0.010 0.009 / 0.010 ms
[510.242s][info][gc,stats ] Subphase: Concurrent Classes Purge 0.119 / 0.119 0.144 / 0.209 0.144 / 0.209 0.144 / 0.209 ms
[510.242s][info][gc,stats ] Subphase: Concurrent Classes Unlink 3.936 / 3.936 47.613 / 101.483 47.613 / 101.483 47.613 / 101.483 ms
[510.242s][info][gc,stats ] Subphase: Concurrent Mark 28.924 / 29.159 29.263 / 40.186 29.263 / 40.186 29.263 / 40.186 ms
[510.242s][info][gc,stats ] Subphase: Concurrent Mark Try Flush 0.079 / 0.138 1.952 / 14.164 1.952 / 14.164 1.952 / 14.164 ms
[510.243s][info][gc,stats ] Subphase: Concurrent Mark Try Terminate 0.653 / 1.080 0.929 / 1.111 0.929 / 1.111 0.929 / 1.111 ms
[510.243s][info][gc,stats ] Subphase: Concurrent References Enqueue 0.004 / 0.004 0.002 / 0.004 0.002 / 0.004 0.002 / 0.004 ms
[510.243s][info][gc,stats ] Subphase: Concurrent References Process 0.103 / 0.103 0.075 / 0.121 0.075 / 0.121 0.075 / 0.121 ms
[510.243s][info][gc,stats ] Subphase: Concurrent Roots ClassLoaderDataGraph 0.090 / 0.249 0.879 / 7.863 0.879 / 7.863 0.879 / 7.863 ms
[510.243s][info][gc,stats ] Subphase: Concurrent Roots CodeCache 0.000 / 0.000 0.000 / 0.000 0.000 / 0.000 0.000 / 0.000 ms
[510.243s][info][gc,stats ] Subphase: Concurrent Roots JavaThreads 1.726 / 2.463 10.069 / 42.963 10.069 / 42.963 10.069 / 42.963 ms
[510.243s][info][gc,stats ] Subphase: Concurrent Roots OopStorageSet 0.018 / 0.023 0.078 / 0.503 0.078 / 0.503 0.078 / 0.503 ms
[510.243s][info][gc,stats ] Subphase: Concurrent Weak Roots OopStorageSet 0.387 / 0.389 0.424 / 1.128 0.424 / 1.128 0.424 / 1.128 ms
[510.243s][info][gc,stats ] Subphase: Pause Mark Try Complete 0.000 / 0.000 0.000 / 0.000 0.000 / 0.000 0.000 / 0.000 ms
[510.243s][info][gc,stats ] System: Java Threads 50 / 50 43 / 50 43 / 50 43 / 50 threads
[510.243s][info][gc,stats ] =================================================================
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