gc log : [Eden: 51.7G(51.0G)->0.0B(61.4G) Survivors: 96.0M->128.0M Heap: 241.9G(280.0G)->190.2G(280.0G)] [Times: user=1.98 sys=0.79, real=0.16 secs] [Eden: 27.3G(22.0G)->0.0B(61.5G) Survivors: 96.0M->96.0M Heap: 217.5G(280.0G)->190.2G(280.0G)] [Times: user=1.69 sys=0.51, real=0.14 secs]
jstat -gcutil pid 2s S0 S1 E O M CCS YGC YGCT FGC FGCT GCT 0.00 100.00 50.12 88.29 98.38 - 1491 416.471 0 0.000 416.471 0.00 100.00 52.06 88.29 98.38 - 1491 416.471 0 0.000 416.471 0.00 100.00 55.10 88.29 98.38 - 1491 416.471 0 0.000 416.471 0.00 100.00 58.25 88.29 98.38 - 1491 416.471 0 0.000 416.471 0.00 100.00 62.55 88.29 98.38 - 1491 416.471 0 0.000 416.471 0.00 100.00 65.36 88.29 98.38 - 1491 416.471 0 0.000 416.471 0.00 100.00 68.70 88.29 98.38 - 1491 416.471 0 0.000 416.471 0.00 100.00 71.60 88.29 98.38 - 1491 416.471 0 0.000 416.471 0.00 100.00 73.20 88.29 98.38 - 1491 416.471 0 0.000 416.471 0.00 100.00 76.49 88.29 98.38 - 1491 416.471 0 0.000 416.471 0.00 100.00 79.92 88.29 98.38 - 1491 416.471 0 0.000 416.471 0.00 100.00 82.92 88.29 98.38 - 1491 416.471 0 0.000 416.471 0.00 100.00 86.07 88.29 98.38 - 1491 416.471 0 0.000 416.471 0.00 100.00 88.73 88.29 98.38 - 1491 416.471 0 0.000 416.471 0.00 100.00 92.07 88.29 98.38 - 1491 416.471 0 0.000 416.471 0.00 100.00 2.57 88.26 98.38 - 1492 416.643 0 0.000 416.643 0.00 100.00 5.04 88.26 98.38 - 1492 416.643 0 0.000 416.643 0.00 100.00 7.75 88.26 98.38 - 1492 416.643 0 0.000 416.643 0.00 100.00 10.51 88.26 98.38 - 1492 416.643 0 0.000 416.643 so heap memory is 280G, the extra 170G we don't know why
