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hoswey/full gc频率过高_生命周期过长对象的频繁创建

Created July 5, 2017 13:01
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full gc频率过高_生命周期过长对象的频繁创建
num #instances #bytes class name
----------------------------------------------
1: 3863976 186261944 [Ljava.lang.Object;
2: 6509136 156219264 java.util.ArrayList
3: 947155 53040680 xh.common.GuardPlayerInfo
4: 2145051 51481224 java.util.Date
5: 667201 48038472 java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask
6: 407268 47803472 [C
7: 303600 29145600 org.springframework.statemachine.state.ObjectState
8: 233403 22406688 sun.util.calendar.Gregorian$Date
9: 607200 19430400 org.springframework.statemachine.support.OrderedCompositeItem
10: 598161 19141152 java.util.concurrent.locks.ReentrantLock$NonfairSync
11: 6048 19083808 [I
12: 157871 18944520 xh.common.GuardStageBroadcast$Builder
13: 582517 18640544 java.util.HashMap$Entry
14: 1159201 18547216 org.springframework.core.annotation.AnnotationAwareOrderComparator
15: 552000 17664000 org.springframework.statemachine.listener.OrderedComposite
16: 40207 15975128 [B
17: 563797 13531128 java.util.Collections$UnmodifiableRandomAccessList
root@ubuntu:/data/weblog/java/guard_service# sudo -u www-data jmap -histo 6868 | head -n 20
num #instances #bytes class name
----------------------------------------------
1: 1500631 239098952 [C
2: 4328629 196906768 [Ljava.lang.Object;
3: 6532705 156784920 java.util.ArrayList
4: 950287 53216072 xh.common.GuardPlayerInfo
5: 2150750 51618000 java.util.Date
6: 668661 48143592 java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask
7: 112918 45388568 [B
8: 304150 29198400 org.springframework.statemachine.state.ObjectState
9: 233732 22438272 sun.util.calendar.Gregorian$Date
10: 825613 19814712 java.lang.String
11: 608305 19465760 org.springframework.statemachine.support.OrderedCompositeItem
12: 599241 19175712 java.util.concurrent.locks.ReentrantLock$NonfairSync
13: 598649 19156768 java.util.HashMap$Entry
14: 158516 19021920 xh.common.GuardStageBroadcast$Builder
15: 1161306 18580896 org.springframework.core.annotation.AnnotationAwareOrderComparator
16: 31918 18126416 [I
17: 553000 17696000 org.springframework.statemachine.listener.OrderedComposite
root@ubuntu:/data/weblog/java/guard_service# sudo -u www-data jmap -histo 6868 | head -n 20
num #instances #bytes class name
----------------------------------------------
1: 3323312 554475344 [C
2: 5170151 216641080 [Ljava.lang.Object;
3: 6577140 157851360 java.util.ArrayList
4: 236809 93752920 [B
5: 955039 53482184 xh.common.GuardPlayerInfo
6: 2158628 51807072 java.util.Date
7: 670515 48277080 java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask
8: 1687857 40508568 java.lang.String
9: 305052 29284992 org.springframework.statemachine.state.ObjectState
10: 788454 25230528 java.lang.StackTraceElement
11: 75669 22743736 [I
12: 234242 22487232 sun.util.calendar.Gregorian$Date
13: 631149 20196768 java.util.HashMap$Entry
14: 610138 19524416 org.springframework.statemachine.support.OrderedCompositeItem
15: 601033 19233056 java.util.concurrent.locks.ReentrantLock$NonfairSync
16: 159471 19136520 xh.common.GuardStageBroadcast$Builder
17: 1164779 18636464 org.springframework.core.annotation.AnnotationAwareOrderComparator
root@ubuntu:/data/weblog/java/guard_service# sudo -u www-data jmap -histo 6868 | head -n 20
num #instances #bytes class name
----------------------------------------------
1: 1891255 305619496 [C
2: 4657846 204657512 [Ljava.lang.Object;
3: 6569361 157664664 java.util.ArrayList
4: 143510 61848888 [B
5: 954043 53426408 xh.common.GuardPlayerInfo
6: 2157086 51770064 java.util.Date
7: 670619 48284568 java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask
8: 305448 29323008 org.springframework.statemachine.state.ObjectState
9: 1012419 24298056 java.lang.String
10: 234465 22508640 sun.util.calendar.Gregorian$Date
11: 610923 19549536 org.springframework.statemachine.support.OrderedCompositeItem
12: 608352 19467264 java.util.HashMap$Entry
13: 601800 19257600 java.util.concurrent.locks.ReentrantLock$NonfairSync
14: 159136 19096320 xh.common.GuardStageBroadcast$Builder
15: 1166284 18660544 org.springframework.core.annotation.AnnotationAwareOrderComparator
16: 555360 17771520 org.springframework.statemachine.listener.OrderedComposite
17: 42232 17708608 [I
root@ubuntu:/data/weblog/java/guard_service# sudo -u www-data jmap -histo 6868 | head -n 20
num #instances #bytes class name
----------------------------------------------
1: 3890183 187384160 [Ljava.lang.Object;
2: 6551472 157235328 java.util.ArrayList
3: 950809 53245304 xh.common.GuardPlayerInfo
4: 439990 52364184 [C
5: 2154786 51714864 java.util.Date
6: 670644 48286368 java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask
7: 305668 29344128 org.springframework.statemachine.state.ObjectState
8: 234456 22507776 sun.util.calendar.Gregorian$Date
9: 611336 19562752 org.springframework.statemachine.support.OrderedCompositeItem
10: 602202 19270464 java.util.concurrent.locks.ReentrantLock$NonfairSync
11: 158480 19017600 xh.common.GuardStageBroadcast$Builder
12: 585479 18735328 java.util.HashMap$Entry
13: 1167097 18673552 org.springframework.core.annotation.AnnotationAwareOrderComparator
14: 555760 17784320 org.springframework.statemachine.listener.OrderedComposite
15: 42411 16531744 [B
16: 7385 15309880 [I
17: 568139 13635336 java.util.Collections$UnmodifiableRandomAccessList
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