{"id":854,"date":"2020-11-28T16:54:13","date_gmt":"2020-11-28T08:54:13","guid":{"rendered":"http:\/\/www.dongchangbin.net.cn\/?p=854"},"modified":"2020-11-28T16:54:18","modified_gmt":"2020-11-28T08:54:18","slug":"%e5%a6%82%e4%bd%95%e9%98%85%e8%af%bbgc%e6%97%a5%e5%bf%97","status":"publish","type":"post","link":"https:\/\/www.dongchangbin.net.cn\/?p=854","title":{"rendered":"\u5982\u4f55\u9605\u8bfbGC\u65e5\u5fd7"},"content":{"rendered":"\n<h1 class=\"wp-block-heading\" id=\"howtoreadlogs-Demo\">Demo<\/h1>\n\n\n\n<h5 class=\"wp-block-heading\" id=\"howtoreadlogs-withoutevacuation(partiallystw)\">without evacuation (partially stw)<\/h5>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td><code>1.416<\/code><code>: [GC pause (young) (initial-mark),&nbsp;<\/code><code>0.62417980<\/code>&nbsp;<code>secs]&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<\/code><code>\/\/ initial mark phase<\/code><code>\u2026....<\/code><code>2.042<\/code><code>: [GC concurrent-root-region-scan-start]&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<\/code><code>\/\/ concurrent scan phase start<\/code><code>2.067<\/code><code>: [GC concurrent-root-region-scan-end,&nbsp;<\/code><code>0.0251507<\/code><code>]&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<\/code><code>\/\/ concurrent scan phase end<\/code><code>2.068<\/code><code>: [GC concurrent-mark-start]&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<\/code><code>\/\/ concurrent mark phase start<\/code><code>3.198<\/code><code>: [GC concurrent-mark-reset-<\/code><code>for<\/code><code>-overflow]&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<\/code><code>\/\/&nbsp;&nbsp; well, some awkward exception occurred and would be self-adjusted soon<\/code><code>4.053<\/code><code>: [GC concurrent-mark-end,&nbsp;<\/code><code>1.9849672<\/code>&nbsp;<code>sec]&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<\/code><code>\/\/ concurrent mark phase end<\/code><code>4.055<\/code><code>: [GC remark&nbsp;<\/code><code>4.055<\/code><code>: [GC ref-proc,&nbsp;<\/code><code>0.0000254<\/code>&nbsp;<code>secs],&nbsp;<\/code><code>0.0030184<\/code>&nbsp;<code>secs]&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<\/code><code>\/\/ remark phase done, stw<\/code><code>[Times: user=<\/code><code>0.00<\/code>&nbsp;<code>sys=<\/code><code>0.00<\/code><code>, real=<\/code><code>0.00<\/code>&nbsp;<code>secs]&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<\/code><code>4.088<\/code><code>: [GC cleanup 117M-&gt;106M(138M),&nbsp;<\/code><code>0.0015198<\/code>&nbsp;<code>secs]&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<\/code><code>\/\/ cleanup phase done, stw<\/code><code>[Times: user=<\/code><code>0.00<\/code>&nbsp;<code>sys=<\/code><code>0.00<\/code><code>, real=<\/code><code>0.00<\/code>&nbsp;<code>secs]<\/code><code>4.090<\/code><code>: [GC concurrent-cleanup-start]&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<\/code><code>\/\/ concurrently free up regions that is empty, start<\/code><code>4.091<\/code><code>: [GC concurrent-cleanup-end,&nbsp;<\/code><code>0.0002721<\/code><code>]&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<\/code><code>\/\/ concurrently free up regions that is empty, end<\/code><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h5 class=\"wp-block-heading\" id=\"howtoreadlogs-withevacuation(completelystw)\"><br>with evacuation (completely stw)<\/h5>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td><code>0.522<\/code><code>: [GC pause (young),&nbsp;<\/code><code>0.15877971<\/code>&nbsp;<code>secs]&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<\/code><code>\/\/ \u8fd9\u662f\u4e00\u6b21ygc<\/code><code>\/\/ \u5f00\u59cb\u65f6\u95f4\u70b90.522\uff0cstw\u6301\u7eed\u65f6\u95f40.15877971<\/code><code>[Parallel Time:&nbsp;<\/code><code>157.1<\/code>&nbsp;<code>ms]&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<\/code><code>\/\/&nbsp;&nbsp; \u672c\u6b21ygc\u7684\u5e76\u884c\u65f6\u95f4157.1ms<\/code><code>[GC Worker Start (ms):&nbsp;&nbsp;<\/code><code>522.1<\/code>&nbsp;&nbsp;<code>522.2<\/code>&nbsp;&nbsp;<code>522.2<\/code>&nbsp;&nbsp;<code>522.2<\/code>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<code>\/\/&nbsp;&nbsp;&nbsp;&nbsp; 4\u4e2aGCWorker\u7684\u542f\u52a8\u65f6\u95f4<\/code><code>Avg:&nbsp;<\/code><code>522.2<\/code><code>, Min:&nbsp;<\/code><code>522.1<\/code><code>, Max:&nbsp;<\/code><code>522.2<\/code><code>, Diff:&nbsp;&nbsp;&nbsp;<\/code><code>0.1<\/code><code>]&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<\/code><code>\/\/&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; \u5e73\u5747\u503c\uff0c\u6700\u5c0f\u503c\uff0c\u6700\u5927\u503c\uff0c\u6700\u5927\u6700\u5c0f\u5dee<\/code><code>[Ext Root Scanning (ms):&nbsp;&nbsp;<\/code><code>1.6<\/code>&nbsp;&nbsp;<code>1.5<\/code>&nbsp;&nbsp;<code>1.6<\/code>&nbsp;&nbsp;<code>1.9<\/code>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<code>\/\/&nbsp;&nbsp;&nbsp;&nbsp; 4\u4e2aGCWorker\u626b\u63cf\u6839\u7684\u65f6\u957f<\/code><code>Avg:&nbsp;&nbsp;&nbsp;<\/code><code>1.7<\/code><code>, Min:&nbsp;&nbsp;&nbsp;<\/code><code>1.5<\/code><code>, Max:&nbsp;&nbsp;&nbsp;<\/code><code>1.9<\/code><code>, Diff:&nbsp;&nbsp;&nbsp;<\/code><code>0.4<\/code><code>]&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<\/code><code>\/\/&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; \u5e73\u5747\u503c\uff0c\u6700\u5c0f\u503c\uff0c\u6700\u5927\u503c\uff0c\u6700\u5927\u6700\u5c0f\u5dee<\/code><code>[Update RS (ms):&nbsp;&nbsp;<\/code><code>38.7<\/code>&nbsp;&nbsp;<code>38.8<\/code>&nbsp;&nbsp;<code>50.6<\/code>&nbsp;&nbsp;<code>37.3<\/code>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<code>\/\/&nbsp;&nbsp;&nbsp;&nbsp; 4\u4e2aGCWorkrer\u66f4\u65b0RS\u7684\u65f6\u957f<\/code><code>Avg:&nbsp;&nbsp;<\/code><code>41.3<\/code><code>, Min:&nbsp;&nbsp;<\/code><code>37.3<\/code><code>, Max:&nbsp;&nbsp;<\/code><code>50.6<\/code><code>, Diff:&nbsp;&nbsp;<\/code><code>13.3<\/code><code>]&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<\/code><code>\/\/&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; \u5e73\u5747\u503c\uff0c\u6700\u5c0f\u503c\uff0c\u6700\u5927\u503c\uff0c\u6700\u5927\u6700\u5c0f\u5dee<\/code><code>[Processed Buffers :&nbsp;<\/code><code>2<\/code>&nbsp;<code>2<\/code>&nbsp;<code>3<\/code>&nbsp;<code>2<\/code>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<code>\/\/&nbsp;&nbsp;&nbsp;&nbsp; 4\u4e2aGCWorker\u66f4\u65b0\u7684RS\u6570\u91cf<\/code><code>Sum:&nbsp;<\/code><code>9<\/code><code>, Avg:&nbsp;<\/code><code>2<\/code><code>, Min:&nbsp;<\/code><code>2<\/code><code>, Max:&nbsp;<\/code><code>3<\/code><code>, Diff:&nbsp;<\/code><code>1<\/code><code>]&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<\/code><code>\/\/&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; \u603b\u6570\uff0c\u5e73\u5747\u503c\uff0c\u6700\u5c0f\u503c\uff0c\u6700\u5927\u503c\uff0c\u6700\u5927\u6700\u5c0f\u5dee<\/code><code>[Scan RS (ms):&nbsp;&nbsp;<\/code><code>9.9<\/code>&nbsp;&nbsp;<code>9.7<\/code>&nbsp;&nbsp;<code>0.0<\/code>&nbsp;&nbsp;<code>9.7<\/code>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<code>\/\/&nbsp;&nbsp;&nbsp;&nbsp; 4\u4e2aGCWorker\u626b\u63cfRS\u7684\u65f6\u957f<\/code><code>Avg:&nbsp;&nbsp;&nbsp;<\/code><code>7.3<\/code><code>, Min:&nbsp;&nbsp;&nbsp;<\/code><code>0.0<\/code><code>, Max:&nbsp;&nbsp;&nbsp;<\/code><code>9.9<\/code><code>, Diff:&nbsp;&nbsp;&nbsp;<\/code><code>9.9<\/code><code>]&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<\/code><code>\/\/&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; \u5e73\u5747\u503c\uff0c\u6700\u5c0f\u503c\uff0c\u6700\u5927\u503c\uff0c\u6700\u5927\u6700\u5c0f\u5dee<\/code><code>[Object Copy (ms):&nbsp;&nbsp;<\/code><code>106.7<\/code>&nbsp;&nbsp;<code>106.8<\/code>&nbsp;&nbsp;<code>104.6<\/code>&nbsp;&nbsp;<code>107.9<\/code>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<code>\/\/&nbsp;&nbsp;&nbsp;&nbsp; 4\u4e2aGCWorker\u590d\u5236\u5b58\u6d3b\u5bf9\u8c61\u7684\u65f6\u957f<\/code><code>Avg:&nbsp;<\/code><code>106.5<\/code><code>, Min:&nbsp;<\/code><code>104.6<\/code><code>, Max:&nbsp;<\/code><code>107.9<\/code><code>, Diff:&nbsp;&nbsp;&nbsp;<\/code><code>3.3<\/code><code>]&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<\/code><code>\/\/&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; \u5e73\u5747\u503c\uff0c\u6700\u5c0f\u503c\uff0c\u6700\u5927\u503c\uff0c\u6700\u5927\u6700\u5c0f\u5dee<\/code><code>[Termination (ms):&nbsp;&nbsp;<\/code><code>0.0<\/code>&nbsp;&nbsp;<code>0.0<\/code>&nbsp;&nbsp;<code>0.0<\/code>&nbsp;&nbsp;<code>0.0<\/code>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<code>\/\/&nbsp;&nbsp;&nbsp;&nbsp; 4\u4e2aGCWorker\u7684\u7ec8\u6b62\u65f6\u957f<\/code><code>Avg:&nbsp;&nbsp;&nbsp;<\/code><code>0.0<\/code><code>, Min:&nbsp;&nbsp;&nbsp;<\/code><code>0.0<\/code><code>, Max:&nbsp;&nbsp;&nbsp;<\/code><code>0.0<\/code><code>, Diff:&nbsp;&nbsp;&nbsp;<\/code><code>0.0<\/code><code>]&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<\/code><code>\/\/&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; \u5e73\u5747\u503c\uff0c\u6700\u5c0f\u503c\uff0c\u6700\u5927\u503c\uff0c\u6700\u5927\u6700\u5c0f\u5dee<\/code><code>[Termination Attempts :&nbsp;<\/code><code>1<\/code>&nbsp;<code>4<\/code>&nbsp;<code>4<\/code>&nbsp;<code>6<\/code>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<code>\/\/&nbsp;&nbsp;&nbsp;&nbsp; 4\u4e2aGCWorker\u7684\u5c1d\u8bd5\u7ec8\u6b62\u6b21\u6570<\/code><code>Sum:&nbsp;<\/code><code>15<\/code><code>, Avg:&nbsp;<\/code><code>3<\/code><code>, Min:&nbsp;<\/code><code>1<\/code><code>, Max:&nbsp;<\/code><code>6<\/code><code>, Diff:&nbsp;<\/code><code>5<\/code><code>]&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<\/code><code>\/\/&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; \u603b\u6570\uff0c\u5e73\u5747\u503c\uff0c\u6700\u5c0f\u503c\uff0c\u6700\u5927\u503c\uff0c\u6700\u5927\u6700\u5c0f\u5dee<\/code><code>[GC Worker End (ms):&nbsp;&nbsp;<\/code><code>679.1<\/code>&nbsp;&nbsp;<code>679.1<\/code>&nbsp;&nbsp;<code>679.1<\/code>&nbsp;&nbsp;<code>679.1<\/code>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<code>\/\/&nbsp;&nbsp;&nbsp;&nbsp; 4\u4e2aGCWorker\u7684\u505c\u6b62\u65f6\u95f4<\/code><code>Avg:&nbsp;<\/code><code>679.1<\/code><code>, Min:&nbsp;<\/code><code>679.1<\/code><code>, Max:&nbsp;<\/code><code>679.1<\/code><code>, Diff:&nbsp;&nbsp;&nbsp;<\/code><code>0.1<\/code><code>]&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<\/code><code>\/\/&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; \u5e73\u5747\u503c\uff0c\u6700\u5c0f\u503c\uff0c\u6700\u5927\u503c\uff0c\u6700\u5927\u6700\u5c0f\u5dee<\/code><code>[GC Worker (ms):&nbsp;&nbsp;<\/code><code>156.9<\/code>&nbsp;&nbsp;<code>157.0<\/code>&nbsp;&nbsp;<code>156.9<\/code>&nbsp;&nbsp;<code>156.9<\/code>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<code>\/\/&nbsp;&nbsp;&nbsp;&nbsp; 4\u4e2aGCWorker\u7684\u5b58\u6d3b\u65f6\u95f4<\/code><code>Avg:&nbsp;<\/code><code>156.9<\/code><code>, Min:&nbsp;<\/code><code>156.9<\/code><code>, Max:&nbsp;<\/code><code>157.0<\/code><code>, Diff:&nbsp;&nbsp;&nbsp;<\/code><code>0.1<\/code><code>]&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<\/code><code>\/\/&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; \u5e73\u5747\u503c\uff0c\u6700\u5c0f\u503c\uff0c\u6700\u5927\u503c\uff0c\u6700\u5927\u6700\u5c0f\u5dee<\/code><code>[GC Worker Other (ms):&nbsp;&nbsp;<\/code><code>0.3<\/code>&nbsp;&nbsp;<code>0.3<\/code>&nbsp;&nbsp;<code>0.3<\/code>&nbsp;&nbsp;<code>0.3<\/code>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<code>\/\/&nbsp;&nbsp;&nbsp;&nbsp; 4\u4e2aGCWorker\u82b1\u8d39\u5728\u5176\u4ed6\u6742\u4e8b\u4e0a\u7684\u65f6\u95f4<\/code><code>Avg:&nbsp;&nbsp;&nbsp;<\/code><code>0.3<\/code><code>, Min:&nbsp;&nbsp;&nbsp;<\/code><code>0.3<\/code><code>, Max:&nbsp;&nbsp;&nbsp;<\/code><code>0.3<\/code><code>, Diff:&nbsp;&nbsp;&nbsp;<\/code><code>0.0<\/code><code>]&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<\/code><code>\/\/&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; \u5e73\u5747\u503c\uff0c\u6700\u5c0f\u503c\uff0c\u6700\u5927\u503c\uff0c\u6700\u5927\u6700\u5c0f\u5dee<\/code><code>[Clear CT:&nbsp;&nbsp;&nbsp;<\/code><code>0.1<\/code>&nbsp;<code>ms]&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<\/code><code>\/\/&nbsp;&nbsp; \u6e05\u9664\u5361\u8868\u7684\u65f6\u957f\uff0c\u672c\u9636\u6bb5\u4e32\u884c\u6267\u884c<\/code><code>[Other:&nbsp;&nbsp;&nbsp;<\/code><code>1.5<\/code>&nbsp;<code>ms]&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<\/code><code>\/\/&nbsp;&nbsp; \u82b1\u8d39\u5728\u5176\u4ed6\u65f6\u95f4\u4e0a\u4e8b\u60c5\u4e0a\u7684\u65f6\u95f4\uff0c\u672c\u9636\u6bb5\u4e32\u884c\u6267\u884c<\/code><code>[Choose CSet:&nbsp;&nbsp;&nbsp;<\/code><code>0.0<\/code>&nbsp;<code>ms]&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<\/code><code>\/\/&nbsp;&nbsp;&nbsp;&nbsp; \u4e3a\u56de\u6536\u96c6\u9009\u62e9\u533a\u57df\u7684\u65f6\u95f4<\/code><code>[Ref Proc:&nbsp;&nbsp;&nbsp;<\/code><code>0.3<\/code>&nbsp;<code>ms]&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<\/code><code>\/\/&nbsp;&nbsp;&nbsp;&nbsp; \u5904\u7406\u5bf9\u8c61\u5f15\u7528\u7684\u65f6\u95f4<\/code><code>[Ref Enq:&nbsp;&nbsp;&nbsp;<\/code><code>0.0<\/code>&nbsp;<code>ms]&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<\/code><code>\/\/&nbsp;&nbsp;&nbsp;&nbsp; \u5bf9\u8c61\u5f15\u7528\u5165\u961f\u65f6\u95f4<\/code><code>[Free CSet:&nbsp;&nbsp;&nbsp;<\/code><code>0.3<\/code>&nbsp;<code>ms]&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<\/code><code>\/\/&nbsp;&nbsp;&nbsp;&nbsp; \u91ca\u653e\u56de\u6536\u96c6\u7684\u65f6\u95f4<\/code><code>[Eden: 12M(12M)-&gt;0B(10M) Survivors: 0B-&gt;2048K Heap: 13M(64M)-&gt;9739K(64M)]&nbsp;&nbsp;&nbsp;<\/code><code>\/\/&nbsp;&nbsp; \u56de\u6536\u6548\u679c<\/code><code>\/\/&nbsp;&nbsp; Eden\u4ece12M\u56de\u6536\u52300B\uff0c\u5bb9\u91cf\u4ece12M\u51cf\u5c11\u523010M<\/code><code>\/\/&nbsp;&nbsp; Survivors\u4ece0B\u589e\u52a0\u52302048K<\/code><code>\/\/&nbsp;&nbsp; \u5806\u4ece13M\u51cf\u5c11\u52309739K\uff0c\u5bb9\u91cf\u4fdd\u6301\u4e0d\u53d8<\/code><code>[Times: user=<\/code><code>0.59<\/code>&nbsp;<code>sys=<\/code><code>0.02<\/code><code>, real=<\/code><code>0.16<\/code>&nbsp;<code>secs]<\/code><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h1 class=\"wp-block-heading\" id=\"howtoreadlogs-\u53c2\u8003\u8d44\u6599\">\u53c2\u8003\u8d44\u6599<\/h1>\n\n\n\n<h5 class=\"wp-block-heading\" id=\"howtoreadlogs-\u6743\u5a01\u53c2\u8003\">\u6743\u5a01\u53c2\u8003<\/h5>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td><code>https:<\/code><code>\/\/blogs.oracle.com\/poonam\/understanding-g1-gc-logs<\/code><\/td><\/tr><\/tbody><\/table><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>Demo without evacuation (partially stw) 1.416: [GC paus [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[89],"tags":[141,142,98,143],"class_list":{"0":"post-854","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"hentry","6":"category-89","7":"tag-gc","9":"tag-java","10":"tag-jvm"},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u5982\u4f55\u9605\u8bfbGC\u65e5\u5fd7 - Dong&#039;s Blog<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" 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