应用程序会有长达仅20秒的停顿
应用程序会有长达仅20秒的停顿,哪位高手帮忙分析下。
java -Xms1024m -Xmx2048m -Xmn256m -verbose:gc -XX:+PrintGCDetails -Xloggc:gc.log -XX:NewRatio=2 -XX:SurvivorRatio=65535 -XX:MaxTenuringThreshold=0 -XX:CMSInitiatingOccupancyFraction=70 -XX:+UseParNewGC -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:+CMSIncrementalPacing -XX:CMSIncrementalDutyCycleMin=0 -XX:CMSIncrementalDutyCycle=10 com.lj.main.Service
gc.log如下:
(部分高耗时的CMS-remark)
283702.856: [GC[YG occupancy: 136243 K (262080 K)]283702.857: [Rescan (parallel) , 0.1694080 secs]283703.026: [weak refs processing, 0.0269230 secs] [1 CMS-remark: 684012K(1248344K)] 820255K(1510424K), 0.1991230 secs] [Times: user=0.03 sys=0.00, real=0.19 secs]
[1 CMS-remark: 1581596K(1590872K)] 1731895K(1852952K), 5.5778410 secs] [Times: user=5.33 sys=0.01, real=5.57 secs]
424334.482: [GC[YG occupancy: 130289 K (262080 K)]424334.482: [Rescan (parallel) , 0.1427750 secs]424334.625: [weak refs processing, 0.0054560 secs] [1 CMS-remark: 163910K(1654044K)] 294200K(1916124K), 0.1488410 secs] [Times: user=0.01 sys=0.00, real=0.14 secs]
[1 CMS-remark: 1597569K(1654044K)] 1730326K(1916124K), 5.8872310 secs] [Times: user=5.72 sys=0.00, real=5.89 secs]
510582.012: [GC[YG occupancy: 124462 K (262080 K)]510582.012: [Rescan (parallel) , 0.1385270 secs]510582.151: [weak refs processing, 0.0037960 secs] [1 CMS-remark: 164407K(1654236K)] 288869K(1916316K), 0.1427760 secs] [Times: user=0.00 sys=0.00, real=0.14 secs]
[1 CMS-remark: 1622905K(1654236K)] 1754396K(1916316K), 5.8088150 secs] [Times: user=5.68 sys=0.00, real=5.80 secs]
683570.566: [GC[YG occupancy: 128587 K (262080 K)]683570.566: [Rescan (parallel) , 0.1442510 secs]683570.711: [weak refs processing, 0.0067340 secs] [1 CMS-remark: 163972K(1835008K)] 292560K(2097088K), 0.1514970 secs] [Times: user=0.01 sys=0.00, real=0.15 secs]
[1 CMS-remark: 1789263K(1835008K)] 1923608K(2097088K), 6.3413010 secs] [Times: user=6.21 sys=0.00, real=6.34 secs]
828326.832: [GC[YG occupancy: 127254 K (262080 K)]828326.832: [Rescan (parallel) , 0.1657690 secs]828326.998: [weak refs processing, 0.0000830 secs] [1 CMS-remark: 1801715K(1835008K)] 1928969K(2097088K), 0.1660610 secs] [Times: user=0.00 sys=0.00, real=0.17 secs]
[1 CMS-remark: 1819191K(1835008K)] 1950221K(2097088K), 6.0530960 secs] [Times: user=5.92 sys=0.00, real=6.05 secs]
911380.546: [GC[YG occupancy: 132015 K (262080 K)]911380.546: [Rescan (parallel) , 0.1492010 secs]911380.695: [weak refs processing, 0.0002880 secs] [1 CMS-remark: 1805468K(1835008K)] 1937484K(2097088K), 0.1496680 secs] [Times: user=0.01 sys=0.00, real=0.15 secs]
[1 CMS-remark: 1828090K(1835008K)] 1960373K(2097088K), 6.2945720 secs] [Times: user=6.15 sys=0.00, real=6.29 secs]
919927.379: [GC[YG occupancy: 126189 K (262080 K)]919927.379: [Rescan (parallel) , 0.1496420 secs]919927.528: [weak refs processing, 0.0173540 secs] [1 CMS-remark: 968545K(1835008K)] 1094734K(2097088K), 0.1688230 secs] [Times: user=0.02 sys=0.00, real=0.17 secs]
[1 CMS-remark: 1822335K(1835008K)] 1957601K(2097088K), 6.0291510 secs] [Times: user=5.87 sys=0.00, real=6.02 secs]
989367.593: [GC[YG occupancy: 127736 K (262080 K)]989367.593: [Rescan (parallel) , 0.1505960 secs]989367.744: [weak refs processing, 0.0279220 secs] [1 CMS-remark: 945130K(1835008K)] 1072867K(2097088K), 0.1814700 secs] [Times: user=0.03 sys=0.00, real=0.18 secs]
[1 CMS-remark: 1823206K(1835008K)] 1956764K(2097088K), 6.2923340 secs] [Times: user=6.11 sys=0.00, real=6.29 secs]
(部分高耗时的CMS-concurrent-mark)
254.464: [CMS-concurrent-mark: 1.286/220.282 secs] [Times: user=1.28 sys=0.00, real=220.28 secs]
21329.558: [CMS-concurrent-mark: 1.963/56.001 secs] [Times: user=1.94 sys=0.00, real=56.00 secs]
21533.017: [CMS-concurrent-mark: 1.217/117.005 secs] [Times: user=1.18 sys=0.00, real=117.01 secs]
38076.582: [CMS-concurrent-mark: 2.040/46.507 secs] [Times: user=2.01 sys=0.00, real=46.51 secs]
47634.826: [CMS-concurrent-mark: 1.759/23.013 secs] [Times: user=1.76 sys=0.00, real=23.01 secs]
47761.628: [CMS-concurrent-mark: 1.223/40.294 secs] [Times: user=1.22 sys=0.00, real=40.29 secs]
78000.474: [CMS-concurrent-mark: 2.143/7.815 secs] [Times: user=2.09 sys=0.00, real=7.81 secs]
78076.271: [CMS-concurrent-mark: 1.516/26.965 secs] [Times: user=1.50 sys=0.00, real=26.97 secs]
78196.795: [CMS-concurrent-mark: 1.200/45.527 secs] [Times: user=1.20 sys=0.00, real=45.52 secs]
108624.550: [CMS-concurrent-mark: 2.172/74.034 secs] [Times: user=2.13 sys=0.00, real=74.04 secs]
120206.005: [CMS-concurrent-mark: 1.875/19.948 secs] [Times: user=1.88 sys=0.00, real=19.95 secs]
120342.170: [CMS-concurrent-mark: 1.369/43.014 secs] [Times: user=1.36 sys=0.00, real=43.01 secs]
140638.162: [CMS-concurrent-mark: 2.282/54.947 secs] [Times: user=2.31 sys=0.00, real=54.95 secs]
183123.817: [CMS-concurrent-mark: 2.085/25.971 secs] [Times: user=2.01 sys=0.00, real=25.97 secs]
183236.524: [CMS-concurrent-mark: 1.272/14.480 secs] [Times: user=1.27 sys=0.00, real=14.48 secs]
208414.965: [CMS-concurrent-mark: 2.577/44.810 secs] [Times: user=2.54 sys=0.00, real=44.82 secs]
208662.843: [CMS-concurrent-mark: 1.457/141.520 secs] [Times: user=1.46 sys=0.00, real=141.52 secs]
232731.133: [CMS-concurrent-mark: 2.650/46.593 secs] [Times: user=2.64 sys=0.00, real=46.59 secs]
232913.785: [CMS-concurrent-mark: 1.340/67.884 secs] [Times: user=1.37 sys=0.00, real=67.88 secs]
283429.788: [CMS-concurrent-mark: 2.751/48.747 secs] [Times: user=2.72 sys=0.00, real=48.75 secs]
283683.942: [CMS-concurrent-mark: 1.504/134.728 secs] [Times: user=1.49 sys=0.00, real=134.73 secs]
337181.127: [CMS-concurrent-mark: 3.644/61.952 secs] [Times: user=3.64 sys=0.00, real=61.96 secs]
337225.693: [CMS-concurrent-mark: 5.412/9.712 secs] [Times: user=5.34 sys=0.00, real=9.71 secs]
337246.645: [CMS-concurrent-mark: 4.093/10.091 secs] [Times: user=4.13 sys=0.00, real=10.09 secs]
337265.230: [CMS-concurrent-mark: 1.350/5.656 secs] [Times: user=1.36 sys=0.00, real=5.66 secs]
337295.859: [CMS-concurrent-mark: 1.803/6.327 secs] [Times: user=1.80 sys=0.00, real=6.33 secs]
337361.055: [CMS-concurrent-mark: 1.587/20.782 secs] [Times: user=1.55 sys=0.00, real=20.77 secs]
337422.170: [CMS-concurrent-mark: 1.470/10.354 secs] [Times: user=1.48 sys=0.00, real=10.36 secs]
337497.492: [CMS-concurrent-mark: 1.741/22.312 secs] [Times: user=1.73 sys=0.00, real=22.31 secs]
337602.729: [CMS-concurrent-mark: 1.819/53.540 secs] [Times: user=1.82 sys=0.00, real=53.54 secs]
386950.084: [CMS-concurrent-mark: 3.163/66.834 secs] [Times: user=3.20 sys=0.00, real=66.83 secs]
423584.604: [CMS-concurrent-mark: 2.806/10.134 secs] [Times: user=2.81 sys=0.00, real=10.13 secs]
423620.848: [CMS-concurrent-mark: 1.610/3.936 secs] [Times: user=1.60 sys=0.00, real=3.93 secs]
423644.022: [CMS-concurrent-mark: 1.461/5.532 secs] [Times: user=1.46 sys=0.00, real=5.53 secs]
423704.305: [CMS-concurrent-mark: 1.758/6.856 secs] [Times: user=1.79 sys=0.00, real=6.85 secs]
423769.123: [CMS-concurrent-mark: 1.390/1.390 secs] [Times: user=1.38 sys=0.00, real=1.39 secs]
423879.721: [CMS-concurrent-mark: 1.382/1.382 secs] [Times: user=1.37 sys=0.00, real=1.39 secs]
424006.148: [CMS-concurrent-mark: 1.504/1.504 secs] [Times: user=1.50 sys=0.00, real=1.50 secs]
424270.634: [CMS-concurrent-mark: 1.407/142.950 secs] [Times: user=1.38 sys=0.00, real=142.95 secs]
479095.084: [CMS-concurrent-mark: 3.440/111.529 secs] [Times: user=3.47 sys=0.00, real=111.53 secs]
509996.144: [CMS-concurrent-mark: 2.296/10.779 secs] [Times: user=2.30 sys=0.00, real=10.78 secs]
510195.033: [CMS-concurrent-mark: 1.505/1.505 secs] [Times: user=1.49 sys=0.00, real=1.51 secs]
510341.926: [CMS-concurrent-mark: 1.405/1.405 secs] [Times: user=1.40 sys=0.00, real=1.41 secs]
510507.933: [CMS-concurrent-mark: 1.395/1.395 secs] [Times: user=1.39 sys=0.00, real=1.40 secs]
580176.878: [CMS-concurrent-mark: 3.495/77.605 secs] [Times: user=3.47 sys=0.01, real=77.60 secs]
682844.374: [CMS-concurrent-mark: 8.446/47354.016 secs] [Times: user=8.37 sys=0.00, real=47353.71 secs]
682871.664: [CMS-concurrent-mark: 2.597/14.279 secs] [Times: user=2.63 sys=0.00, real=14.28 secs]
682944.718: [CMS-concurrent-mark: 4.017/22.161 secs] [Times: user=3.96 sys=0.00, real=22.16 secs]
683029.594: [CMS-concurrent-mark: 1.362/1.362 secs] [Times: user=1.37 sys=0.00, real=1.36 secs]
683170.837: [CMS-concurrent-mark: 1.374/1.374 secs] [Times: user=1.37 sys=0.00, real=1.38 secs]
683342.532: [CMS-concurrent-mark: 1.445/1.445 secs] [Times: user=1.41 sys=0.00, real=1.44 secs]
683495.384: [CMS-concurrent-mark: 1.365/1.365 secs] [Times: user=1.36 sys=0.00, real=1.36 secs]
750007.317: [CMS-concurrent-mark: 3.624/117.322 secs] [Times: user=3.62 sys=0.00, real=117.33 secs]
828311.971: [CMS-concurrent-mark: 12.497/59034.389 secs] [Times: user=12.39 sys=0.01, real=59034.01 secs]
833066.509: [CMS-concurrent-mark: 3.454/79.582 secs] [Times: user=3.41 sys=0.00, real=79.58 secs]
911368.759: [CMS-concurrent-mark: 11.627/38175.767 secs] [Times: user=11.54 sys=0.00, real=38175.52 secs]
919727.087: [CMS-concurrent-mark: 3.557/45.795 secs] [Times: user=3.49 sys=0.00, real=45.80 secs]
919914.540: [CMS-concurrent-mark: 1.401/40.831 secs] [Times: user=1.37 sys=0.00, real=40.83 secs]
989166.183: [CMS-concurrent-mark: 3.516/47.588 secs] [Times: user=3.48 sys=0.00, real=47.59 secs]
989355.867: [CMS-concurrent-mark: 1.555/53.018 secs] [Times: user=1.55 sys=0.00, real=53.01 secs]
1062174.845: [CMS-concurrent-mark: 3.923/63.100 secs] [Times: user=3.71 sys=0.00, real=63.10 secs]
1062421.889: [CMS-concurrent-mark: 1.471/82.821 secs] [Times: user=1.42 sys=0.00, real=82.82 secs]
1114827.766: [CMS-concurrent-mark: 6.412/51.367 secs] [Times: user=6.41 sys=0.00, real=51.37 secs]
1114857.616: [CMS-concurrent-mark: 1.597/7.936 secs] [Times: user=1.59 sys=0.00, real=7.94 secs]