{"id":524,"date":"2008-08-26T00:00:00","date_gmt":"2008-08-25T16:00:00","guid":{"rendered":"http:\/\/www.strongd.net\/?p=524"},"modified":"2011-07-15T09:19:05","modified_gmt":"2011-07-15T01:19:05","slug":"%e4%bd%bf%e7%94%a8jrockit-mission-control%e8%bf%9b%e8%a1%8c%e6%80%a7%e8%83%bd%e5%88%86%e6%9e%90%e5%92%8c%e8%b0%83%e4%bc%98","status":"publish","type":"post","link":"https:\/\/www.strongd.net\/?p=524","title":{"rendered":"\u4f7f\u7528JRockit Mission Control\u8fdb\u884c\u6027\u80fd\u5206\u6790\u548c\u8c03\u4f18"},"content":{"rendered":"


\n

Mission Control<\/SPAN><\/SPAN>\u662f<\/SPAN>BEA JRockit JVM<\/SPAN><\/SPAN>\u81ea\u5e26\u7684\u4e00\u7ec4\u4ee5\u6781\u4f4e\u7684\u5f00\u9500\u6765\u76d1\u63a7\u3001\u7ba1\u7406\u548c\u5206\u6790\u751f\u4ea7\u73af\u5883\u4e2d\u7684\u5e94\u7528\u7a0b\u5e8f\u7684\u5de5\u5177\u3002\u5b83\u5305\u62ec\u4e09\u4e2a\u72ec\u7acb\u7684\u5e94\u7528\u7a0b\u5e8f\uff1a\u5185\u5b58\u6cc4\u6f0f\u76d1\u6d4b\u5668\uff08<\/SPAN>Memory Leak Detector<\/SPAN><\/SPAN>\uff09\u3001<\/SPAN>JVM<\/SPAN><\/SPAN>\u8fd0\u884c\u65f6\u5206\u6790\u5668\uff08<\/SPAN>Runtime Analyzer<\/SPAN><\/SPAN>\uff09\u548c\u7ba1\u7406\u63a7\u5236\u53f0\uff08<\/SPAN>Management Console<\/SPAN><\/SPAN>\uff09\u3002<\/SPAN>BEA<\/SPAN><\/SPAN>\u4ece<\/SPAN>JRockit R26<\/SPAN><\/SPAN>\u7248\u672c\u5c31\u5f00\u59cb\u6346\u7ed1\u8fd9\u4e2a\u5de5\u5177\u5957\u4ef6\uff0c\u76ee\u524d\u6700\u65b0\u7684\u7248\u672c\u662f<\/SPAN>3.0<\/SPAN><\/SPAN>\u3002\u6700\u8fd1\u6211\u4eec\u4f7f\u7528\u5176\u4e2d\u7684<\/SPAN>Runtime Analyzer<\/SPAN><\/SPAN>\u5bf9\u56fd\u5185\u67d0\u8457\u540d\u884c\u4e1a\u89e3\u51b3\u65b9\u6848\u8fdb\u884c\u6027\u5206\u6790\u548c\u8c03\u4f18\u3002<\/SPAN><\/SPAN><\/P>
\n

<\/SPAN><\/SPAN> <\/P>
\n

JRockit Runtime Analyzer<\/SPAN><\/SPAN>\uff08<\/SPAN>JRA<\/SPAN><\/SPAN>\uff09\u662f\u4e00\u4e2a<\/SPAN>JVM<\/SPAN><\/SPAN>\u5206\u6790\u5668\uff0c\u662f\u4e00\u4e2a\u968f\u9700\u5e94\u53d8\u7684\u201c\u52a8\u6001\u8bb0\u5f55\u5668\u201d\u3002\u5b83\u8bb0\u5f55\u4e86<\/SPAN>Java<\/SPAN><\/SPAN>\u5e94\u7528\u7a0b\u5e8f\u548c<\/SPAN>JVM<\/SPAN><\/SPAN>\u5728\u4e00\u6bb5\u9884\u5b9a\u7684\u65f6\u95f4\u5185\u7684\u8be6\u7ec6\u8bb0\u5f55\u3002\u7136\u540e\u901a\u8fc7<\/SPAN>JRA<\/SPAN><\/SPAN>\u5e94\u7528\u7a0b\u5e8f\u5bf9\u8bb0\u5f55\u4e0b\u6765\u7684\u6587\u4ef6\u8fdb\u884c\u79bb\u7ebf\u5206\u6790\u3002\u6240\u8bb0\u5f55\u7684\u6570\u636e\u5305\u62ec\u5bf9\u65b9\u6cd5\u7684\u8c03\u7528\u8ddf\u8e2a\u3001\u9519\u8bef\u7684\u540c\u6b65\u3001\u9501\u5b9a\u7684\u5206\u6790\uff0c\u8fd8\u6709\u5783\u573e\u6536\u96c6\u7edf\u8ba1\u4fe1\u606f\uff0c\u4f18\u5316\u51b3\u7b56\u4ee5\u53ca\u5bf9\u8c61\u7edf\u8ba1\u4fe1\u606f\u548c\u5176\u4ed6\u91cd\u8981\u7684\u5e94\u7528\u7a0b\u5e8f<\/SPAN>\/JVM<\/SPAN><\/SPAN>\u884c\u4e3a\u3002\u5b83\u7684\u76ee\u7684\u662f\u8ba9<\/SPAN>JRockit<\/SPAN><\/SPAN>\u5f00\u53d1\u4eba\u5458\u80fd\u591f\u627e\u5230\u826f\u597d\u7684\u65b9\u6cd5\u6765\u57fa\u4e8e\u73b0\u5b9e\u5e94\u7528\u7a0b\u5e8f\u4f18\u5316<\/SPAN>JVM<\/SPAN><\/SPAN>\uff0c\u5bf9\u4e8e\u5e2e\u52a9\u5ba2\u6237\u5728\u751f\u4ea7\u548c\u5f00\u53d1\u73af\u5883\u4e2d\u89e3\u51b3\u95ee\u9898\u5341\u5206\u6709\u7528\u3002<\/SPAN><\/SPAN><\/P>
\n

<\/SPAN><\/SPAN> <\/P>
\n

2.<\/SPAN><\/SPAN><\/STRONG>\u6027\u80fd\u6570\u636e\u5206\u6790\u548c\u8c03\u4f18<\/SPAN><\/STRONG><\/SPAN><\/STRONG><\/P>
\n

<\/SPAN><\/SPAN> <\/P>
\n

\u5728\u672c\u6b21\u9879\u76ee\u4e2d\uff0c\u64cd\u4f5c<\/SPAN>|A<\/SPAN><\/SPAN>\u548c\u64cd\u4f5c<\/SPAN>B<\/SPAN><\/SPAN>\u7684\u767e\u4eba\u5e76\u53d1\u811a\u672c\u6267\u884c\u5b8c\u6210\u7684\u65f6\u95f4\u63a5\u8fd1\u4e24\u5206\u949f\uff0c\u56e0\u6b64\u6211\u4eec\u4f7f\u7528<\/SPAN>JRA<\/SPAN><\/SPAN>\u8fdb\u884c\u4e86<\/SPAN>2<\/SPAN><\/SPAN>\u5206\u949f<\/SPAN>(120<\/SPAN><\/SPAN>\u79d2<\/SPAN>)<\/SPAN><\/SPAN>\u7684\u8bb0\u5f55\u3002\u5728<\/SPAN>GC<\/SPAN><\/SPAN>\u5e38\u89c4\u4fe1\u606f\u4e2d\uff0c\u6211\u4eec\u53d1\u73b0\u5728\u77ed\u77ed\u4e24\u5206\u949f\u65f6\u95f4\u5185\uff0c\u5783\u573e\u6536\u96c6\u7684\u603b\u6570\u9ad8\u8fbe<\/SPAN>365<\/SPAN><\/SPAN>\u6b21\uff0c\u800c\u7531\u6b64\u9020\u6210\u7684\u6682\u505c\u65f6\u95f4\u6709<\/SPAN>42.5<\/SPAN><\/SPAN>\u79d2\u4e4b\u591a\u3002\u4e5f\u5c31\u662f\u8bf4<\/SPAN>35%<\/SPAN><\/SPAN>\u7684\u6267\u884c\u65f6\u95f4\u662f\u5728\u505a\u5783\u573e\u6536\u96c6\u3002<\/SPAN><\/SPAN><\/P>
\n

<\/SPAN><\/SPAN> <\/P>
\n

\u56e0\u4e3a\u6700\u5927\u5806\u5c3a\u5bf8\u5df2\u7ecf\u8bbe\u7f6e\u6210<\/SPAN>1024M<\/SPAN><\/SPAN>\uff0c\u5bf9\u4e8e<\/SPAN>32<\/SPAN><\/SPAN>\u4f4d\u64cd\u4f5c\u7cfb\u7edf\u4e0a\u7684<\/SPAN>Java<\/SPAN><\/SPAN>\u5e94\u7528\u5df2\u7ecf\u662f\u8db3\u591f\u5927\u4e86\uff08\u5728<\/SPAN>IA32<\/SPAN><\/SPAN>\u6784\u67b6\u4e0b\uff0c\u7531\u4e8e\u64cd\u4f5c\u7cfb\u7edf\u7ed9\u6bcf\u4e2a\u8fdb\u7a0b\u7684\u6700\u5927\u5185\u5b58\u5bfb\u5740\u7a7a\u95f4\u4e3a<\/SPAN>1.8G<\/SPAN><\/SPAN>\uff0c\u56e0\u6b64\u6700\u5927\u5806\u5c3a\u5bf8\u4e0d\u80fd\u8d85\u8fc7<\/SPAN>1.8G<\/SPAN><\/SPAN>\uff09\uff0c\u56e0\u6b64\u5806\u7684\u5927\u5c0f\u5e76\u4e0d\u662f\u9020\u6210\u9891\u7e41\u5783\u573e\u6536\u96c6\u7684\u539f\u56e0\u3002\u90a3\u4e48\u5728\u9ad8\u5e76\u53d1\u5ea6\u7684\u573a\u666f\u4e0b\uff0c\u53ef\u80fd\u7684\u5f71\u54cd\u56e0\u7d20\u5f88\u53ef\u80fd\u662f<\/SPAN>Nursery<\/SPAN><\/SPAN>\u5927\u5c0f\u3002<\/SPAN><\/SPAN><\/P>
\n

<\/SPAN><\/SPAN> <\/P>
\n

Nursery <\/SPAN><\/SPAN>\u4e5f\u79f0\u4e3a\u65b0\u4ee3\uff0c\u662f\u6307\u8fd0\u884c\u5206\u4ee3\u5f0f\u5783\u573e\u6536\u96c6\u5668\u65f6\uff0c\u5728\u5806\u4e2d\u5206\u914d<\/SPAN> <\/SPAN><\/SPAN>\u65b0\u5bf9\u8c61<\/SPAN> <\/SPAN><\/SPAN>\u7684\u53ef\u7528\u5757\u533a\u57df\u3002<\/SPAN>\u5f53<\/SPAN> Nursery <\/SPAN><\/SPAN>\u53d8\u6ee1\u65f6\uff0c\u4f1a\u5728\u65b0\u5783\u573e\u6536\u96c6\u4e2d\u5355\u72ec\u5bf9\u5176\u8fdb\u884c\u5783\u573e\u6536\u96c6\u3002<\/SPAN>Nursery <\/SPAN><\/SPAN>\u5927\u5c0f\u51b3\u5b9a\u4e86\u65b0\u6536\u96c6\u7684\u9891\u7387\u548c\u6301\u7eed\u65f6\u95f4\u3002\u8f83\u5927<\/SPAN> Nursery <\/SPAN><\/SPAN>\u4f1a\u964d\u4f4e\u6536\u96c6\u7684\u9891\u7387\uff0c\u4f46\u662f\u4f1a\u7a0d\u5fae\u589e\u52a0\u6bcf\u4e2a\u65b0\u6536\u96c6\u7684\u6301\u7eed\u65f6\u95f4\u3002<\/SPAN> <\/SPAN>Nursery <\/SPAN><\/SPAN>\u4e4b\u6240\u4ee5\u5177\u6709\u4ef7\u503c\uff0c\u662f\u56e0\u4e3a<\/SPAN> Java <\/SPAN><\/SPAN>\u5e94\u7528\u7a0b\u5e8f\u4e2d\u7684\u5927\u591a\u6570\u5bf9\u8c61\u90fd\u662f\u5728\u65b0\u4ee3\u4e2d\u592d\u4ea1\u7684\u3002\u4e0e\u6536\u96c6\u6574\u4e2a\u5806\u76f8\u6bd4\uff0c\u5e94\u9996\u9009\u4ece\u65b0\u7a7a\u95f4\u4e2d\u6536\u96c6\u5783\u573e\uff0c\u56e0\u4e3a\u8be5\u6536\u96c6\u8fc7\u7a0b\u7684\u5f00\u9500\u66f4\u4f4e\uff0c\u800c\u4e14\u5728\u89e6\u53d1\u6536\u96c6\u65f6\uff0c\u65b0\u7a7a\u95f4\u4e2d\u7684\u5927\u591a\u6570\u5bf9\u8c61\u5747\u5df2\u6b7b\u4ea1\u3002<\/SPAN>\u5728\u65b0\u6536\u96c6\u8fc7\u7a0b\u4e2d\uff0c<\/SPAN>JVM <\/SPAN><\/SPAN>\u9996\u5148\u786e\u5b9a<\/SPAN> Nursery <\/SPAN><\/SPAN>\u4e2d\u7684\u54ea\u4e9b\u5bf9\u8c61\u662f\u6d3b\u52a8\u7684\uff0c\u6b64\u540e\u5c06\u5b83\u4eec\u63d0\u5347\u5230\u65e7\u7a7a\u95f4\uff0c\u5e76\u91ca\u653e<\/SPAN> Nursery<\/SPAN><\/SPAN>\uff0c\u4f9b\u5206\u914d\u65b0\u7684\u5c0f\u5bf9\u8c61\u4f7f\u7528<\/SPAN>\u3002<\/SPAN><\/SPAN><\/P>
\n

<\/SPAN><\/SPAN> <\/P>
\n

Nursery<\/SPAN><\/SPAN>\u7684\u9ed8\u8ba4\u7f3a\u7701\u503c\u662f<\/SPAN>10M\/CPU<\/SPAN><\/SPAN>\uff0c\u5bf9\u4e8e\u6211\u4eec<\/SPAN>Clovertown<\/SPAN><\/SPAN>\u670d\u52a1\u5668\u6765\u8bf4\uff0c\u53ea\u6709<\/SPAN>20M<\/SPAN><\/SPAN>\u3002\u7531\u4e8e\u51fa\u73b0\u9891\u7e41\u6536\u96c6\u7684\u60c5\u51b5\uff0c\u90a3\u4e48\u6211\u4eec\u63a8\u65ad\u662f\u7531\u4e8e<\/SPAN>Nursery<\/SPAN><\/SPAN>\u7684\u9ed8\u8ba4\u503c\u592a\u4f4e\u7684\u539f\u56e0\u3002\u4e00\u65b9\u9762\u5728\u9ad8\u5e76\u53d1\u7528\u6237\u7684\u573a\u666f\u4e0b\uff0c\u80af\u5b9a\u662f\u6709\u5927\u91cf\u7684\u65b0\u5bf9\u8c61\u4ea7\u751f\uff0c\u90a3\u4e48<\/SPAN>Nursery<\/SPAN><\/SPAN>\u7684\u7a7a\u95f2\u7a7a\u95f4\u5f88\u5bb9\u6613\u5c31\u88ab\u8017\u5c3d\u3002\u56e0\u6b64<\/SPAN>Nursery<\/SPAN><\/SPAN>\u53d1\u751f\u5783\u573e\u6536\u96c6\u9891\u7387\u5c31\u4f1a\u6bd4\u8f83\u9ad8\u3002\u53e6\u4e00\u65b9\u9762\u66f4\u77ed\u7684\u5783\u573e\u6536\u96c6\u95f4\u9694\u4f1a\u4f7f\u5f97\u65b0\u5bf9\u8c61\u5728<\/SPAN>Nursery<\/SPAN><\/SPAN>\u7684\u5b58\u6d3b\u7387\u63d0\u9ad8\u56e0\u4e3a\u5f88\u591a\u65b0\u5bf9\u8c61\u53ef\u80fd\u8fd8\u6ca1\u6765\u5f97\u53ca\u4f7f\u7528\u5b8c\u6bd5\u5c31\u5df2\u7ecf\u53d1\u751f\u5783\u573e\u6536\u96c6\u3002\u8fd9\u6837\u66f4\u591a\u7684\u5bf9\u8c61\u4f1a\u88ab\u63d0\u5347\u5230\u65e7\u4ee3\uff0c\u4f7f\u5f97\u65e7\u4ee3\u7684\u5bf9\u8c61\u4e5f\u4f1a\u6025\u5267\u589e\u52a0\uff0c\u4ece\u800c\u4f7f\u5f97\u65e7\u4ee3\u53d1\u751f\u5783\u573e\u6536\u96c6\u7684\u9891\u7387\u4e5f\u589e\u52a0\u3002<\/SPAN><\/SPAN><\/P>
\n

<\/SPAN><\/SPAN> <\/P>
\n

\u56e0\u4e3a<\/SPAN>JRockit JVM<\/SPAN><\/SPAN>\u53ef\u4ee5\u4f7f\u7528<\/SPAN>-Xns:<size><\/SPAN><\/SPAN>\u6765\u8bbe\u7f6e<\/SPAN>Nursery<\/SPAN><\/SPAN>\u7684\u5c3a\u5bf8\uff0c\u6211\u4eec\u8981\u5728\u4fdd\u8bc1\u5783\u573e\u56de\u6536\u505c\u987f\u65f6\u95f4\uff08<\/SPAN>garbage collection-pause<\/SPAN><\/SPAN>\uff09\u5c3d\u53ef\u80fd\u77ed\u7684\u540c\u65f6\uff0c\u5c3d\u91cf\u52a0\u5927<\/SPAN>Nursery<\/SPAN><\/SPAN>\u7684\u5c3a\u5bf8\uff0c\u8fd9\u5728\u521b\u5efa\u4e86\u5927\u91cf\u7684\u4e34\u65f6\u5bf9\u8c61\u65f6\u5c24\u5176\u91cd\u8981\u3002\u63a8\u8350\u503c\u662f\u6700\u5927\u5806\u5c3a\u5bf8\u7684<\/SPAN>10%<\/SPAN><\/SPAN>\uff0c\u56e0\u6b64\u6211\u4eec\u5728<\/SPAN>JRockit<\/SPAN><\/SPAN>\u7684\u8fd0\u884c\u65f6\u53c2\u6570\u4e0a\u6dfb\u52a0\u4e86<\/SPAN> \u2013Xns100m<\/SPAN><\/SPAN><\/SPAN>\u3002\u518d\u6b21\u8fd0\u884c\u811a\u672c\u540e\uff0c<\/SPAN>JRA<\/SPAN><\/SPAN>\u6536\u96c6\u7684\u4fe1\u606f\u663e\u793a<\/SPAN>GC<\/SPAN><\/SPAN>\u6682\u505c\u65f6\u95f4\u9aa4\u964d\u5230<\/SPAN>15.3s<\/SPAN><\/SPAN>\uff0c\u6b21\u6570\u4e5f\u6709\u6240\u51cf\u5c11\uff0c\u964d\u5230<\/SPAN>296<\/SPAN><\/SPAN>\uff1a<\/SPAN><\/SPAN><\/P>
\n

<\/SPAN><\/SPAN> <\/P>
\n
\n
\n
\n
\n
\n
\n

\n

Nursery<\/SPAN><\/STRONG>\u5927\u5c0f<\/SPAN><\/STRONG><\/SPAN><\/STRONG><\/P><\/TD>
\n


\n

20M(<\/SPAN><\/SPAN>\u9ed8\u8ba4\u503c<\/SPAN>)<\/SPAN><\/SPAN><\/P><\/TD>
\n


\n

100M<\/SPAN><\/SPAN><\/P><\/TD><\/TR>
\n


\n

GC<\/SPAN><\/STRONG>\u6682\u505c\u65f6\u95f4<\/SPAN><\/STRONG><\/SPAN><\/STRONG><\/P><\/TD>
\n


\n

42.5s<\/SPAN><\/SPAN><\/P><\/TD>
\n


\n

15.3s<\/SPAN><\/SPAN><\/P><\/TD><\/TR>
\n


\n

\u5783\u573e\u6536\u96c6\u7684\u603b\u6570<\/SPAN><\/STRONG><\/SPAN><\/STRONG><\/P><\/TD>
\n


\n

365<\/SPAN><\/SPAN><\/P><\/TD>
\n


\n

296<\/SPAN><\/SPAN><\/P><\/TD><\/TR>
\n


\n

\u5e73\u5747\u6682\u505c\u65f6\u95f4<\/SPAN><\/STRONG><\/SPAN><\/STRONG><\/P><\/TD>
\n


\n

116ms<\/SPAN><\/SPAN><\/P><\/TD>
\n


\n

52ms<\/SPAN><\/SPAN><\/P><\/TD><\/TR><\/TBODY><\/TABLE>
\n

<\/SPAN><\/SPAN> <\/P>
\n

\u6b64\u5916\uff0c\u6211\u4eec\u4ece\u65b9\u6cd5\u4fe1\u606f\u4e2d\u53ef\u4ee5\u770b\u5230\u8c03\u7528\u6b21\u6570\u6700\u591a\u8017\u65f6\u95f4\u6700\u957f\u7684\u4e24\u4e2a\u65b9\u6cd5\u5206\u522b\u662f<\/SPAN>jrockit.vm.Locks.monitorEnterSecondStage<\/SPAN><\/SPAN><\/STRONG>\u548c<\/SPAN>com.ABC.StateManager.makeState<\/SPAN><\/SPAN><\/STRONG>\u4e24\u4e2a\u65b9\u6cd5\u3002\u5c55\u5f00\u524d\u7f6e\u4efb\u52a1\u540e\u53d1\u73b0\u8c03\u7528\u8fd9\u4e24\u4e2a\u65b9\u6cd5\u6700\u591a\u7684\u65b9\u6cd5\u662f<\/SPAN>com.ABC.SqlQueryAction.query<\/SPAN><\/SPAN><\/STRONG>\u3002\u800c<\/SPAN>jrockit.vm.Locks.monitorEnterSecondStage<\/SPAN><\/SPAN><\/STRONG>\u663e\u7136\u662f<\/SPAN>JRockit<\/SPAN><\/SPAN>\u5b9e\u73b0\u9501\u673a\u5236\u7684\u7279\u5b9a\u7684<\/SPAN>API<\/SPAN><\/SPAN>\u3002\u56e0\u6b64\u6211\u4eec\u6000\u7591\u662f\u5bf9\u6570\u636e\u5e93\u7684\u64cd\u4f5c\u65f6\u6709\u8d44\u6e90\u4e92\u65a5\u7684\u73b0\u8c61\u53d1\u73b0\u3002<\/SPAN><\/SPAN><\/P>
\n

<\/SPAN><\/SPAN> <\/P>
\n

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JDBC connection size 20  <\/SPAN>w\/ default nursery <\/SPAN><\/STRONG><\/P><\/TD>
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JDBC connection size 100 w\/ 100M nursery<\/SPAN><\/STRONG><\/P><\/TD>
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Increase %<\/SPAN><\/STRONG><\/P>
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\u64cd\u4f5c<\/SPAN><\/STRONG>A<\/SPAN><\/STRONG><\/P><\/TD>
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22.125<\/SPAN><\/SPAN><\/P><\/TD>
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12.079<\/SPAN><\/SPAN><\/P><\/TD>
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83%<\/SPAN><\/SPAN><\/P><\/TD><\/TR>
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35.195<\/SPAN><\/SPAN><\/P><\/TD>
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21.773<\/SPAN><\/SPAN><\/P><\/TD>
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62%<\/SPAN><\/SPAN><\/P><\/TD><\/TR><\/TBODY><\/TABLE>
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\u5728\u6027\u80fd\u8c03\u4f18\u5b8c\u6210\u540e\uff0c\u6211\u4eec\u53c8\u8fdb\u884c\u4e86\u529f\u80fd\u6d4b\u8bd5\uff08\u56de\u5f52\u6d4b\u8bd5\uff09\uff0c\u4ee5\u9a8c\u8bc1\u4e0a\u8ff0\u6539\u52a8\u6ca1\u6709\u5f71\u54cd\u7cfb\u7edf\u7684\u529f\u80fd\u6027\u6b63\u786e\u3002<\/SPAN><\/SPAN><\/P>
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\u56db\u3001\u5c0f\u7ed3<\/SPAN><\/STRONG><\/SPAN><\/STRONG><\/SPAN><\/P>
\n

\u5176\u5b9e\u5229\u7528<\/SPAN>Mission Control<\/SPAN><\/SPAN>\u5bf9<\/SPAN>Java<\/SPAN><\/SPAN>\u5e94\u7528\u8fdb\u884c\u8c03\u4f18\u5e76\u4e0d\u96be\uff0c\u5bf9\u5427\uff1f\u5e0c\u671b\u672c\u6b21\u6027\u80fd\u5206\u6790\u8c03\u4f18\u7684\u8fc7\u7a0b\u53ef\u4ee5\u7ed9\u5927\u5bb6\u4e00\u4e9b\u542f\u53d1\uff0c\u4eca\u540e\u53ef\u4ee5\u5e94\u7528\u5230\u65e5\u5e38\u5de5\u4f5c\u4e2d\u3002<\/SPAN><\/P><\/DIV><\/p>\n","protected":false},"excerpt":{"rendered":"

Mission Control\u662fBEA JRockit JVM\u81ea\u5e26\u7684\u4e00\u7ec4\u4ee5\u6781\u4f4e\u7684\u5f00\u9500\u6765\u76d1\u63a7\u3001\u7ba1\u7406\u548c\u5206\u6790\u751f\u4ea7\u73af\u5883\u4e2d\u7684\u5e94\u7528\u7a0b\u5e8f\u7684\u5de5\u5177\u3002\u5b83\u5305\u62ec\u4e09\u4e2a\u72ec\u7acb\u7684\u5e94\u7528\u7a0b\u5e8f\uff1a\u5185\u5b58\u6cc4\u6f0f\u76d1\u6d4b\u5668\uff08Memory Leak Detector\uff09\u3001JVM\u8fd0\u884c\u65f6\u5206\u6790\u5668\uff08Runtime Analyzer\uff09\u548c\u7ba1\u7406\u63a7\u5236\u53f0\uff08Management Console\uff09\u3002BEA\u4eceJRockit R26\u7248\u672c\u5c31\u5f00\u59cb\u6346\u7ed1\u8fd9\u4e2a\u5de5\u5177\u5957\u4ef6\uff0c\u76ee\u524d\u6700\u65b0\u7684\u7248\u672c\u662f3.0\u3002\u6700\u8fd1\u6211\u4eec\u4f7f\u7528\u5176\u4e2d\u7684Runtime Analyzer\u5bf9\u56fd\u5185\u67d0\u8457\u540d\u884c\u4e1a\u89e3\u51b3\u65b9\u6848\u8fdb\u884c\u6027\u5206\u6790\u548c\u8c03\u4f18\u3002   JRockit Runtime Analyzer\uff08JRA\uff09\u662f\u4e00\u4e2aJVM\u5206\u6790\u5668\uff0c\u662f\u4e00\u4e2a\u968f\u9700\u5e94\u53d8\u7684\u201c\u52a8\u6001\u8bb0\u5f55\u5668\u201d\u3002\u5b83\u8bb0\u5f55\u4e86Java\u5e94\u7528\u7a0b\u5e8f\u548cJVM\u5728\u4e00\u6bb5\u9884\u5b9a\u7684\u65f6\u95f4\u5185\u7684\u8be6\u7ec6\u8bb0\u5f55\u3002\u7136\u540e\u901a\u8fc7JRA\u5e94\u7528\u7a0b\u5e8f\u5bf9\u8bb0\u5f55\u4e0b\u6765\u7684\u6587\u4ef6\u8fdb\u884c\u79bb\u7ebf\u5206\u6790\u3002\u6240\u8bb0\u5f55\u7684\u6570\u636e\u5305\u62ec\u5bf9\u65b9\u6cd5\u7684\u8c03\u7528\u8ddf\u8e2a\u3001\u9519\u8bef\u7684\u540c\u6b65\u3001\u9501\u5b9a\u7684\u5206\u6790\uff0c\u8fd8\u6709\u5783\u573e\u6536\u96c6\u7edf\u8ba1\u4fe1\u606f\uff0c\u4f18\u5316\u51b3\u7b56\u4ee5\u53ca\u5bf9\u8c61\u7edf\u8ba1\u4fe1\u606f\u548c\u5176\u4ed6\u91cd\u8981\u7684\u5e94\u7528\u7a0b\u5e8f\/JVM\u884c\u4e3a\u3002\u5b83\u7684\u76ee\u7684\u662f\u8ba9JRockit\u5f00\u53d1\u4eba\u5458\u80fd\u591f\u627e\u5230\u826f\u597d\u7684\u65b9\u6cd5\u6765\u57fa\u4e8e\u73b0\u5b9e\u5e94\u7528\u7a0b\u5e8f\u4f18\u5316JVM\uff0c\u5bf9\u4e8e\u5e2e\u52a9\u5ba2\u6237\u5728\u751f\u4ea7\u548c\u5f00\u53d1\u73af\u5883\u4e2d\u89e3\u51b3\u95ee\u9898\u5341\u5206\u6709\u7528\u3002   2.\u6027\u80fd\u6570\u636e\u5206\u6790\u548c\u8c03\u4f18   \u5728\u672c\u6b21\u9879\u76ee\u4e2d\uff0c\u64cd\u4f5c|A\u548c\u64cd\u4f5cB\u7684\u767e\u4eba\u5e76\u53d1\u811a\u672c\u6267\u884c\u5b8c\u6210\u7684\u65f6\u95f4\u63a5\u8fd1\u4e24\u5206\u949f\uff0c\u56e0\u6b64\u6211\u4eec\u4f7f\u7528JRA\u8fdb\u884c\u4e862\u5206\u949f(120\u79d2)\u7684\u8bb0\u5f55\u3002\u5728GC\u5e38\u89c4\u4fe1\u606f\u4e2d\uff0c\u6211\u4eec\u53d1\u73b0\u5728\u77ed\u77ed\u4e24\u5206\u949f\u65f6\u95f4\u5185\uff0c\u5783\u573e\u6536\u96c6\u7684\u603b\u6570\u9ad8\u8fbe365\u6b21\uff0c\u800c\u7531\u6b64\u9020\u6210\u7684\u6682\u505c\u65f6\u95f4\u670942.5\u79d2\u4e4b\u591a\u3002\u4e5f\u5c31\u662f\u8bf435%\u7684\u6267\u884c\u65f6\u95f4\u662f\u5728\u505a\u5783\u573e\u6536\u96c6\u3002   \u56e0\u4e3a\u6700\u5927\u5806\u5c3a\u5bf8\u5df2\u7ecf\u8bbe\u7f6e\u62101024M\uff0c\u5bf9\u4e8e32\u4f4d\u64cd\u4f5c\u7cfb\u7edf\u4e0a\u7684Java\u5e94\u7528\u5df2\u7ecf\u662f\u8db3\u591f\u5927\u4e86\uff08\u5728IA32\u6784\u67b6\u4e0b\uff0c\u7531\u4e8e\u64cd\u4f5c\u7cfb\u7edf\u7ed9\u6bcf\u4e2a\u8fdb\u7a0b\u7684\u6700\u5927\u5185\u5b58\u5bfb\u5740\u7a7a\u95f4\u4e3a1.8G\uff0c\u56e0\u6b64\u6700\u5927\u5806\u5c3a\u5bf8\u4e0d\u80fd\u8d85\u8fc71.8G\uff09\uff0c\u56e0\u6b64\u5806\u7684\u5927\u5c0f\u5e76\u4e0d\u662f\u9020\u6210\u9891\u7e41\u5783\u573e\u6536\u96c6\u7684\u539f\u56e0\u3002\u90a3\u4e48\u5728\u9ad8\u5e76\u53d1\u5ea6\u7684\u573a\u666f\u4e0b\uff0c\u53ef\u80fd\u7684\u5f71\u54cd\u56e0\u7d20\u5f88\u53ef\u80fd\u662fNursery\u5927\u5c0f\u3002   Nursery \u4e5f\u79f0\u4e3a\u65b0\u4ee3\uff0c\u662f\u6307\u8fd0\u884c\u5206\u4ee3\u5f0f\u5783\u573e\u6536\u96c6\u5668\u65f6\uff0c\u5728\u5806\u4e2d\u5206\u914d \u65b0\u5bf9\u8c61 \u7684\u53ef\u7528\u5757\u533a\u57df\u3002\u5f53 Nursery \u53d8\u6ee1\u65f6\uff0c\u4f1a\u5728\u65b0\u5783\u573e\u6536\u96c6\u4e2d\u5355\u72ec\u5bf9\u5176\u8fdb\u884c\u5783\u573e\u6536\u96c6\u3002Nursery \u5927\u5c0f\u51b3\u5b9a\u4e86\u65b0\u6536\u96c6\u7684\u9891\u7387\u548c\u6301\u7eed\u65f6\u95f4\u3002\u8f83\u5927 Nursery \u4f1a\u964d\u4f4e\u6536\u96c6\u7684\u9891\u7387\uff0c\u4f46\u662f\u4f1a\u7a0d\u5fae\u589e\u52a0\u6bcf\u4e2a\u65b0\u6536\u96c6\u7684\u6301\u7eed\u65f6\u95f4\u3002 Nursery \u4e4b\u6240\u4ee5\u5177\u6709\u4ef7\u503c\uff0c\u662f\u56e0\u4e3a Java \u5e94\u7528\u7a0b\u5e8f\u4e2d\u7684\u5927\u591a\u6570\u5bf9\u8c61\u90fd\u662f\u5728\u65b0\u4ee3\u4e2d\u592d\u4ea1\u7684\u3002\u4e0e\u6536\u96c6\u6574\u4e2a\u5806\u76f8\u6bd4\uff0c\u5e94\u9996\u9009\u4ece\u65b0\u7a7a\u95f4\u4e2d\u6536\u96c6\u5783\u573e\uff0c\u56e0\u4e3a\u8be5\u6536\u96c6\u8fc7\u7a0b\u7684\u5f00\u9500\u66f4\u4f4e\uff0c\u800c\u4e14\u5728\u89e6\u53d1\u6536\u96c6\u65f6\uff0c\u65b0\u7a7a\u95f4\u4e2d\u7684\u5927\u591a\u6570\u5bf9\u8c61\u5747\u5df2\u6b7b\u4ea1\u3002\u5728\u65b0\u6536\u96c6\u8fc7\u7a0b\u4e2d\uff0cJVM \u9996\u5148\u786e\u5b9a Nursery \u4e2d\u7684\u54ea\u4e9b\u5bf9\u8c61\u662f\u6d3b\u52a8\u7684\uff0c\u6b64\u540e\u5c06\u5b83\u4eec\u63d0\u5347\u5230\u65e7\u7a7a\u95f4\uff0c\u5e76\u91ca\u653e Nursery\uff0c\u4f9b\u5206\u914d\u65b0\u7684\u5c0f\u5bf9\u8c61\u4f7f\u7528\u3002   Nursery\u7684\u9ed8\u8ba4\u7f3a\u7701\u503c\u662f10M\/CPU\uff0c\u5bf9\u4e8e\u6211\u4eecClovertown\u670d\u52a1\u5668\u6765\u8bf4\uff0c\u53ea\u670920M\u3002\u7531\u4e8e\u51fa\u73b0\u9891\u7e41\u6536\u96c6\u7684\u60c5\u51b5\uff0c\u90a3\u4e48\u6211\u4eec\u63a8\u65ad\u662f\u7531\u4e8eNursery\u7684\u9ed8\u8ba4\u503c\u592a\u4f4e\u7684\u539f\u56e0\u3002\u4e00\u65b9\u9762\u5728\u9ad8\u5e76\u53d1\u7528\u6237\u7684\u573a\u666f\u4e0b\uff0c\u80af\u5b9a\u662f\u6709\u5927\u91cf\u7684\u65b0\u5bf9\u8c61\u4ea7\u751f\uff0c\u90a3\u4e48Nursery\u7684\u7a7a\u95f2\u7a7a\u95f4\u5f88\u5bb9\u6613\u5c31\u88ab\u8017\u5c3d\u3002\u56e0\u6b64Nursery\u53d1\u751f\u5783\u573e\u6536\u96c6\u9891\u7387\u5c31\u4f1a\u6bd4\u8f83\u9ad8\u3002\u53e6\u4e00\u65b9\u9762\u66f4\u77ed\u7684\u5783\u573e\u6536\u96c6\u95f4\u9694\u4f1a\u4f7f\u5f97\u65b0\u5bf9\u8c61\u5728Nursery\u7684\u5b58\u6d3b\u7387\u63d0\u9ad8\u56e0\u4e3a\u5f88\u591a\u65b0\u5bf9\u8c61\u53ef\u80fd\u8fd8\u6ca1\u6765\u5f97\u53ca\u4f7f\u7528\u5b8c\u6bd5\u5c31\u5df2\u7ecf\u53d1\u751f\u5783\u573e\u6536\u96c6\u3002\u8fd9\u6837\u66f4\u591a\u7684\u5bf9\u8c61\u4f1a\u88ab\u63d0\u5347\u5230\u65e7\u4ee3\uff0c\u4f7f\u5f97\u65e7\u4ee3\u7684\u5bf9\u8c61\u4e5f\u4f1a\u6025\u5267\u589e\u52a0\uff0c\u4ece\u800c\u4f7f\u5f97\u65e7\u4ee3\u53d1\u751f\u5783\u573e\u6536\u96c6\u7684\u9891\u7387\u4e5f\u589e\u52a0\u3002   \u56e0\u4e3aJRockit JVM\u53ef\u4ee5\u4f7f\u7528-Xns:<size>\u6765\u8bbe\u7f6eNursery\u7684\u5c3a\u5bf8\uff0c\u6211\u4eec\u8981\u5728\u4fdd\u8bc1\u5783\u573e\u56de\u6536\u505c\u987f\u65f6\u95f4\uff08garbage collection-pause\uff09\u5c3d\u53ef\u80fd\u77ed\u7684\u540c\u65f6\uff0c\u5c3d\u91cf\u52a0\u5927Nursery\u7684\u5c3a\u5bf8\uff0c\u8fd9\u5728\u521b\u5efa\u4e86\u5927\u91cf\u7684\u4e34\u65f6\u5bf9\u8c61\u65f6\u5c24\u5176\u91cd\u8981\u3002\u63a8\u8350\u503c\u662f\u6700\u5927\u5806\u5c3a\u5bf8\u768410%\uff0c\u56e0\u6b64\u6211\u4eec\u5728JRockit\u7684\u8fd0\u884c\u65f6\u53c2\u6570\u4e0a\u6dfb\u52a0\u4e86 \u2013Xns100m\u3002\u518d\u6b21\u8fd0\u884c\u811a\u672c\u540e\uff0cJRA\u6536\u96c6\u7684\u4fe1\u606f\u663e\u793aGC\u6682\u505c\u65f6\u95f4\u9aa4\u964d\u523015.3s\uff0c\u6b21\u6570\u4e5f\u6709\u6240\u51cf\u5c11\uff0c\u964d\u5230296\uff1a   Nursery\u5927\u5c0f 20M(\u9ed8\u8ba4\u503c) 100M GC\u6682\u505c\u65f6\u95f4 42.5s 15.3s \u5783\u573e\u6536\u96c6\u7684\u603b\u6570 365 296 … Continue reading \u4f7f\u7528JRockit Mission Control\u8fdb\u884c\u6027\u80fd\u5206\u6790\u548c\u8c03\u4f18<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1,6,20],"tags":[70],"class_list":["post-524","post","type-post","status-publish","format-standard","hentry","category-java","category-linux","category-20","tag-70"],"_links":{"self":[{"href":"https:\/\/www.strongd.net\/index.php?rest_route=\/wp\/v2\/posts\/524","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.strongd.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.strongd.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.strongd.net\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.strongd.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=524"}],"version-history":[{"count":1,"href":"https:\/\/www.strongd.net\/index.php?rest_route=\/wp\/v2\/posts\/524\/revisions"}],"predecessor-version":[{"id":846,"href":"https:\/\/www.strongd.net\/index.php?rest_route=\/wp\/v2\/posts\/524\/revisions\/846"}],"wp:attachment":[{"href":"https:\/\/www.strongd.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=524"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.strongd.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=524"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.strongd.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=524"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}