excerpt <!-- more --> ## GC 日志 ```sql [2024-05-07T15:27:08.930+0800][info][gc,task ] GC(19367) Using 8 workers of 8 for full compaction [2024-05-07T15:27:08.930+0800][info][gc,start ] GC(19367) Pause Full (G1 Evacuation Pause) [2024-05-07T15:27:08.933+0800][info][gc,phases,start] GC(19367) Phase 1: Mark live objects [2024-05-07T15:27:09.284+0800][info][gc,stringtable ] GC(19367) Cleaned string and symbol table, strings: 73460 processed, 53 removed, symbols: 345356 processed, 0 removed [2024-05-07T15:27:09.284+0800][info][gc,phases ] GC(19367) Phase 1: Mark live objects 351.440ms [2024-05-07T15:27:09.284+0800][info][gc,phases,start] GC(19367) Phase 2: Prepare for compaction [2024-05-07T15:27:09.363+0800][info][gc,phases ] GC(19367) Phase 2: Prepare for compaction 78.364ms [2024-05-07T15:27:09.363+0800][info][gc,phases,start] GC(19367) Phase 3: Adjust pointers [2024-05-07T15:27:09.494+0800][info][gc,phases ] GC(19367) Phase 3: Adjust pointers 131.326ms [2024-05-07T15:27:09.494+0800][info][gc,phases,start] GC(19367) Phase 4: Compact heap [2024-05-07T15:27:09.608+0800][info][gc,phases ] GC(19367) Phase 4: Compact heap 113.592ms [2024-05-07T15:27:09.643+0800][info][gc,heap ] GC(19367) Eden regions: 0->0(143) [2024-05-07T15:27:09.643+0800][info][gc,heap ] GC(19367) Survivor regions: 8->0(18) [2024-05-07T15:27:09.643+0800][info][gc,heap ] GC(19367) Old regions: 2605->2251 [2024-05-07T15:27:09.643+0800][info][gc,heap ] GC(19367) Humongous regions: 249->249 [2024-05-07T15:27:09.643+0800][info][gc,metaspace ] GC(19367) Metaspace: 163097K(167772K)->163035K(167772K) NonClass: 145180K(148188K)->145126K(148188K) Class: 17916K(19584K)->17909K(19584K) [2024-05-07T15:27:09.643+0800][info][gc ] GC(19367) Pause Full (G1 Evacuation Pause) 2861M->2493M(2862M) 712.741ms [2024-05-07T15:27:09.643+0800][info][gc,cpu ] GC(19367) User=4.56s Sys=0.00s Real=0.71s ```