"Takataka ukusanyaji" kumbukumbu ya JVM ni formatted kama ifuatavyo: 1. Kufanya kazi Kila mstari inawakilisha moja taka ukusanyaji operesheni ya kuanzia saa timestamp. 2. Kufanya kazi. Kabla na baada ya ukubwa wa maeneo ya kumbukumbu tofauti katika JVM ni inavyoonekana kama "MemoryArea: Kabla ya ukubwa-> Baada ya ukubwa ((AlocatedSize) " ambapo MemoryArea ni moja ya PSYoungGen, ParOldGen, au Metaspace. 3. Kufanya kazi. Kama "MemoryArea:" ni omitted, inawakilisha kabla na baada ya ukubwa wa kumbukumbu JVM nzima. 4. Kila mstari ina muda kuchukuliwa kwa ajili ya operesheni katika sekunde.  Summarize logi zifuatazo na kumbuka yoyote anomalies muhimu: 2023-03-30T07:00:19.800+0000: [GC (Kukosa kwa Ugawaji) [PSYoungGen: 17197776K->2224032K(21782528K) ] 64496630K->49524856K ((79218176K), 3.2658630 sekunde] [Mara: mtumiaji=4.53 sys=0.00, halisi=3.27 sekunde] 2023-03-30T07:01:06.553+0000: [GC (Kushindwa kwa Ugawaji) [PSYoungGen: 17471392K->2195300K(22969344K) ] 64772216K->49530782K ((80404992K), 3.3074224 sekunde] [Mara: mtumiaji=4.63 sys=0.00, halisi=3.30 sekunde] 2023-03-30T07:01:56.129+0000: [GC (Kushindwa kwa Ugawaji) [PSYoungGen: 19045732K-> 2429792K(22598656K) ] 66381214K-> 49767742K ((80034304K), 3.5912859 sekunde] [Mara: mtumiaji = 4.94 sys = 0.00, halisi = 3.59 sekunde] 2023-03-30T07:02:46.034+0000: [GC (Kukosa kwa Ugawaji) [PSYoungGen: 19280224K-> 2428421K(23520768K) ] 66618174K-> 49768148K ((80956416K), 3.6520001 sekunde] [Mara: mtumiaji=5.07 sys=0.03, halisi=3.65 sekunde] 2023-03-30T07:03:39.130+0000: [GC (Kukosa kwa Ugawaji) [PSYoungGen: 20488709K->2600800K(23257088K) ] 67828436K->49943004K ((80692736K), 3.8378192 sekunde] [Mara: mtumiaji=5.19 sys=0.00, halisi=3.84 sekunde] 2023-03-30T07:04:31.634+0000: [GC (Kukosa kwa Ugawaji) [PSYoungGen: 20661088K->2550592K(23885312K) ] 68003292K->49894476K(81320960K), 3.7886199 sekunde] [Mara: mtumiaji=5.15 sys=0.00, halisi=3.78 sekunde] 2023-03-30T07:05:28.784+0000: [GC (Kushindwa kwa Ugawaji) [PSYoungGen: 21416768K->2709510K(23698432K) ] 68760652K->50055163K ((81134080K), 3.9951697 sekunde] [Mara: mtumiaji=5.54 sys=0.00, halisi=3.99 sekunde] 2023-03-30T07:06:24.857+0000: [GC (Kukosa kwa Ugawaji) [PSYoungGen: 21575686K->2709696K(24113664K) ] 68921339K->50058933K ((81549312K), 4.0210395 sekunde] [Mara: mtumiaji=5.47 sys=0.01, halisi=4.02 sekunde] 2023-03-30T07:07:21.991+0000: [GC (Kukosa kwa Ugawaji) [PSYoungGen: 22106304K-> 2835749K(24000512K) ] 69455541K-> 50186794K ((81436160K), 4.0703042 sekunde] [Mara: mtumiaji = 5.76 sys = 0.00, halisi = 4.06 sekunde] 2023-03-30T07:08:18.668+0000: [GC (Kushindwa kwa Ugawaji) [PSYoungGen: 22232357K->2785312K(24265216K) ] 69583402K->50204626K ((81700864K), 4.1296625 sekunde] [Mara: mtumiaji=5.77 sys=0.00, halisi=4.13 sekunde] 2023-03-30T07:09:16.891+0000: [GC (Kukosa kwa Ugawaji) [PSYoungGen: 22510624K->2834405K(24177664K) ] 69929938K->50255520K ((81613312K), 4.2070487 sekunde] [Mara: mtumiaji=5.89 sys=0.01, halisi=4.21 sekunde] 2023-03-30T07:10:15.553+0000: [GC (Kushindwa kwa Ugawaji) [PSYoungGen: 22559717K->2842896K(24403456K) ] 69980832K->50266688K ((81839104K), sekunde 4.2489383] [Mara: mtumiaji=5.83 sys=0.02, halisi=4.24 sekunde] 2023-03-30T07:11:15.412+0000: [GC (Kukosa kwa Ugawaji) [PSYoungGen: 22863632K->2880069K(24334848K) ] 70287424K->50306742K(81770496K), 4.2983311 sekunde] [Mara: mtumiaji=6.01 sys=0.00, halisi=4.29 sekunde] 2023-03-30T07:12:17.330+0000: [GC (Kukosa kwa Ugawaji) [PSYoungGen: 22900805K->2670097K(24596992K) ] 70327478K->50099432K(82032640K), 3.9450690 sekunde] [Mara: mtumiaji=5.44 sys=0.00, halisi=3.95 sekunde] 2023-03-30T07:13:15.713+0000: [GC (Kukosa kwa Ugawaji) [PSYoungGen: 23009297K->2684375K(24459776K) ] 70438632K->50115773K ((81895424K), 3.9758416 sekunde] [Mara: mtumiaji=5.53 sys=0.00, halisi=3.97 sekunde] 2023-03-30T07:14:12.939+0000: [GC (Kukosa kwa Ugawaji) [PSYoungGen: 23023575K->2678912K(24829952K) ] 70454973K->50113093K ((82265600K), 3.9702778 sekunde] [Mara: mtumiaji=5.52 sys=0.00, halisi=3.97 sekunde] 2023-03-30T07:15:12.343+0000: [GC (Kushindwa kwa Ugawaji) [PSYoungGen: 23508608K->2753575K(24717312K) ] 70942789K->50189628K ((82152960K), sekunde 4.0754481] [Mara: mtumiaji=5.72 sys=0.00, halisi=4.08 sekunde] 2023-03-30T07:16:13.026+0000: [GC (Kukosa kwa Ugawaji) [PSYoungGen: 23583271K->2762097K(24974336K) ] 71019324K->50201762K ((82409984K), 4.1128461 sekunde] [Mara: mtumiaji=5.66 sys=0.00, halisi=4.11 sekunde] 2023-03-30T07:17:14.129+0000: [GC (Kukosa kwa Ugawaji) [PSYoungGen: 23924593K->2797957K(24905728K) ] 71364258K->50239629K ((82341376K), 4.1456776 sekunde] [Mara: mtumiaji=5.74 sys=0.01, halisi=4.15 sekunde] 2023-03-30T07:18:14.857+0000: [GC (Kukosa kwa Ugawaji) [PSYoungGen: 23960453K->2804721K(25075712K) ] 71402125K->50249103K ((82511360K), 4.1905285 sekunde] [Mara: mtumiaji=5.73 sys=0.01, halisi=4.19 sekunde] 2023-03-30T07:19:15.979+0000: [GC (Kushindwa kwa Ugawaji) [PSYoungGen: 24189937K->3641846K(25027072K) ] 71634319K->51171235K ((82462720K), 3.6175882 sekunde] [Mara: mtumiaji=5.94 sys=0.00, halisi=3.62 sekunde] 2023-03-30T07:22:24.484+0000: [GC (Kukosa kwa Ugawaji) [PSYoungGen: 25027062K->3360979K(24336896K) ] 72556451K->52269877K(81772544K), 0.4407322 sekunde] [Mara: mtumiaji=5.66 sys=0.00, halisi=0.44 sekunde] 2023-03-30T07:22:38.974+0000: [GC (Kukosa kwa Ugawaji) [PSYoungGen: 24007379K-> 4035567K(24681984K) ] 72916277K-> 57145380K ((82117632K), 0.8531910 sekunde] [Mara: mtumiaji=10.80 sys=0.23, halisi=0.85 sekunde] 2023-03-30T07:22:52.666+0000: [GC (Kushindwa kwa Ugawaji) [PSYoungGen: 24677029K-> 24677029K(24681984K) ] 77786841K-> 82112670K ((82117632K), sekunde 7.3509182] [Mara: mtumiaji=22.60 sys=11.27, halisi=7.35 sekunde] 2023-03-30T07:23:00.017+0000: [Full GC (Ergonomics) [PSYoungGen: 24677029K->0K(24681984K) ] [ParOldGen: 57435641K->57435322K(57435648K) ] 82112670K->57435322K(82117632K), [Metaspace: 241941K->241941K(260096K) ], 26.4487596 sek] [Times: user=313.82 sys=2.44, real=26.45 sek] 2023-03-30T07:24:07.186+0000: [Full GC (Ergonomics) [PSYoungGen: 20646400K->12427037K(24681984K) ] [ParOldGen: 57435322K->57435609K(57435648K) ] 78081722K->69862646K(82117632K), [Metaspace: 241947K->241947K(260096K) ], sekunde 28.8675082] [Times: user=350.97 sys=1.74, halisi=28.87 sekunde] 2023-03-30T07:24:36.057+0000: [Full GC (System.gc()) [PSYoungGen: 12730000K->12427055K(24681984K) ] [ParOldGen: 57435609K->57435556K(57435648K) ] 70165609K->69862611K(82117632K), [Metaspace: 241947K->241947K(260096K) ], 31.3736816 sek] [Times: user=379.38 sys=2.94, real=31.37 secs] 2023-03-30T07:25:18.096+0000: [Full GC (Ergonomics) [PSYoungGen: 20646400K->16985330K(24681984K) ] [ParOldGen: 57435556K->57435308K(57435648K) ] 78081956K->74420638K(82117632K), [Metaspace: 241999K->241999K(260096K) ], 31.4762980 sek] [Times: user=363.38 sys=3.10, real=31.48 secs] 2023-03-30T07:25:54.537+0000: [Full GC (Ergonomics) [PSYoungGen: 20646400K->19116969K(24681984K) ] [ParOldGen: 57435308K->57435152K(57435648K) ] 78081708K->76552122K(82117632K), [Metaspace: 241999K->241999K(260096K) ], 31.0418139 sek] [Times: user=377.34 sys=2.75, real=31.04 secs] 2023-03-30T07:26:27.487+0000: [Full GC (Ergonomics) [PSYoungGen: 20646400K->19955901K(24681984K) ] [ParOldGen: 57435152K->57435290K(57435648K) ] 78081552K->77391191K(82117632K), [Metaspace: 241999K->241999K(260096K) ], sekunde 22.9475977] [Times: user=280.80 sys=1.57, halisi=22.95 sekunde] 2023-03-30T07:26:51.319+0000: [Full GC (Ergonomics) [PSYoungGen: 20646400K->20340549K(24681984K) ] [ParOldGen: 57435290K->57435523K(57435648K) ] 78081690K->77776072K(82117632K), [Metaspace: 242004K->242004K(260096K) ], 37.25643 sek] [Times: user=458.29 sys=3.35, real=37.26 secs] 2023-03-30T07:27:28.892+0000: [Full GC (Ergonomics) [PSYoungGen: 20646400K->20465997K(24681984K) ] [ParOldGen: 57435523K->57435230K(57435648K) ] 78081923K->77901227K(82117632K), [Metaspace: 242007K->242007K(260096K) ], 31.4213545 sek] [Times: user=382.65 sys=2.74, real=31.42 sec] 2023-03-30T07:28:00.350+0000: [Full GC (Ergonomics) [PSYoungGen: 20646400K->20492397K(24681984K) ] [ParOldGen: 57435230K->57435139K(57435648K) ] 78081630K->77927536K(82117632K), [Metaspace: 24K2011->201124K(260096K) ], 17.3069966 sek] [Times: user=209.34 sys=0.45, real=17.31 sek] 2023-03-30T07:28:17.694+0000: [Full GC (Ergonomics) [PSYoungGen: 20639999K->20482496K(24681984K) ] [ParOldGen: 57435139K->57435581K(57435648K) ] 78075138K->77918078K(82117632K), [Metaspace: 242023K->242023K(260096K) ], 39.0253664 sek] [Times: user=478.37 sys=3.87, real=39.02 secs] 2023-03-30T07:28:56.752+0000: [Full GC (Ergonomics) [PSYoungGen: 20629482K->20490559K(24681984K) ] [ParOldGen: 57435581K->57435269K(57435648K) ] 78065064K->77925828K(82117632K), [Metaspace: 242023K->242023K(260096K) ], 32.7146380 sek] [Times: user=398.86 sys=2.93, real=32.71 secs] 2023-03-30T07:29:29.592+0000: [Full GC (Ergonomics) [PSYoungGen: 20627596K->20498740K(24681984K) ] [ParOldGen: 57435269K->57435482K(57435648K) ] 78062865K->77934223K(82117632K), [Metaspace: 242029K->242029K(260096K) ], 39.9805382 sek] [Times user=491.39 sys=4.10, real=39.98 secs] 2023-03-30T07:30:09.618+0000: [Full GC (Ergonomics) [PSYoungGen: 20646400K->20529006K(24681984K) ] [ParOldGen: 57435482K->57435402K ((57435648K) ] 78081882K->77964408K ((82117632K), [Metaspace: 242038K->242038K (((260096K) ], 31.3632706 sek] [Times: user=382.46 sys=2.74, real=31.36 secs] 2023-03-30T07:30:41.012+0000: [Full GC (Ergonomics) [PSYoungGen: 20646400K->20535638K(24681984K) ] [ParOldGen: 57435402K->57435345K ((57435648K) ] 78081802K->77970983K ((82117632K), [Metaspace: 242053K->242053K (((260096K) ], 31.0060106 sek] [Times: user=377.25 sys=2.72, real=31.00 secs] 2023-03-30T07:31:12.022+0000: [Full GC (Ergonomics) [PSYoungGen: 20646400K->20535719K(24681984K) ] [ParOldGen: 57435345K->57435297K(57435648K) ] 78081745K->77971016K(82117632K), [Metaspace: 242053K->242053K(260096K) ], 31.1714473 sek] [Times: user=380.42 sys=2.74, real=31.18 secs] 2023-03-30T07:31:43.215+0000: [Full GC (Ergonomics) [PSYoungGen: 20646400K->20536490K(24681984K) ] [ParOldGen: 57435297K->57435275K(57435648K) ] 78081697K->77971766K(82117632K), [Metaspace: 242061K->242061K(260096K) ], 30.9676462 sek] [Times: user=377.19 sys=2.88, real=30.96 sec] 2023-03-30T07:32:14.216+0000: [Full GC (Ergonomics) [PSYoungGen: 20646400K->20537679K(24681984K) ] [ParOldGen: 57435275K->57435244K(57435648K) ] 78081675K->77972923K(82117632K), [Metaspace: 242081K->242081K(260096K) ], 31.2592798 sek] [Times: user=379.77 sys=3.04, real=31.26 secs] 2023-03-30T07:32:45.532+0000: [Full GC (Ergonomics) [PSYoungGen: 20646400K->20518698K(24681984K) ] [ParOldGen: 57435244K->57435465K(57435648K) ] 78081644K->77954164K82(117632K), [Metaspace: 242123K->242123K2600(96K) ], 38.9523351 sek] [Times user:=478.26 sys=4.04, real=38.95 secs] 2023-03-30T07:33:45.139+0000: [Full GC (Ergonomics) [PSYoungGen: 20627835K->20519977K(24681984K) ] [ParOldGen: 57435465K->57435334K(57435648K) ] 78063301K->77955311K(82117632K), [Metaspace: 242185K->242185K2600(96K) ], 31.8680480 secs [Times user:=388.66 sys=2.88, real=31.87 secs] 2023-03-30T07:34:17.045+0000: [Full GC (Ergonomics) [PSYoungGen: 20646400K->20529987K(24681984K) ] [ParOldGen: 57435334K->57435313K(57435648K) ] 78081734K->77965301K82(117632K), [Metaspace: 242185K->242185K26(0096K) ], 30.6528436 sekunde [Times: user=370.84 sys=3.05, real sec=30.65s] 2023-03-30T07:35:08.312+0000: [Full GC (Ergonomics) [PSYoungGen: 20646400K->20552578K(24681984K) ] [ParOldGen: 57435313K->57435312K(57435648K) ] 78081713K->77987890K(82117632K), [Metaspace: 242202K->242202K(260096K) ], 31.3030289 sek] [Times: user=380.50 sys=2.90, real=31.30 secs] 2023-03-30T07:35:39.649+0000: [Full GC (Ergonomics) [PSYoungGen: 20646400K->20541558K(24681984K) ] [ParOldGen: 57435312K->57435297K(57435648K) ] 78081712K->77976855K(82117632K), [Metaspace: 242217K->242217K2600(96K) ], 31.4996226 secs [Times: user=384.32 sys=3.00, real sec=31.50s] 2023-03-30T07:36:11.199+0000: [Full GC (Ergonomics) [PSYoungGen: 20646400K->20562436K(24681984K) ] [ParOldGen: 57435297K->57435260K ((57435648K) ] 78081697K->77997697K ((82117632K), [Metaspace: 242238K->242238K ((260096K) ], 31.1358920 sek] [Times: user=378.46 sys=3.00, real=31.14 secs]
1. Kufanya kazi Makala hiyo ina shughuli 47 za GC kwa muda wa dakika 36 kutoka 7:00 asubuhi hadi 7:36 asubuhi tarehe 30 Machi 2023 UTC. 2. Kufanya kazi. Operesheni za GC huanza kwa karibu moja kwa dakika na huchukua chini ya sekunde tano kila moja, lakini baada ya 7:23 AM, huchukua ghafla sekunde 30 kila moja na hufanyika mara mbili kwa dakika. Kwa maneno mengine, awali, GC shughuli kuchukua sehemu ndogo ya wakati JVM, wakati baadaye, wao kuchukua karibu wakati wake wote. 3. Kufanya kazi. GC shughuli katika kipindi hiki cha pili kusababisha kupungua kidogo sana katika jumla ya ukubwa wa kumbukumbu na PSYoungGen, ParOldGen, na Metaspace maeneo ya kumbukumbu. Tabia hii ni kali hasa baada ya 7:26:51 AM. 4. Hii inaonyesha muda mwingi alitumia katika shughuli GC na matokeo kidogo. 5. Kufanya maamuzi ukubwa jumla ya kumbukumbu awali polepole kukua kutoka 49.5 GB 52.3 GB, lakini katika kipindi cha pili maxes nje karibu 78 GB. 6. Kufanya nini? Kutengwa kumbukumbu ukubwa ni fasta katika 82 GB wakati wa kipindi cha pili cha GC shughuli, kuonyesha kikomo nje. 7. Mfano Mimi kupendekeza kuongeza kiwango cha juu cha kumbukumbu ya kuwekwa zaidi ya 82 GB kikomo, mara mbili yake kama inawezekana, na re-kuendesha JVM.