{"id":10006422,"date":"2022-09-06T21:43:30","date_gmt":"2022-09-06T13:43:30","guid":{"rendered":"https:\/\/ityet.com\/?p=10006422"},"modified":"2022-09-06T21:43:30","modified_gmt":"2022-09-06T13:43:30","slug":"%e9%9d%a2%e8%af%95%e5%ae%98%ef%bc%9a%e5%8d%95%e6%a0%b8-cpu-%e6%94%af%e6%8c%81-java-%e5%a4%9a%e7%ba%bf%e7%a8%8b%e5%90%97%ef%bc%9f%e4%b8%ba%e4%bb%80%e4%b9%88%ef%bc%9f%e8%a2%ab%e9%97%ae%e6%87%b5%e4%ba%86","status":"publish","type":"post","link":"https:\/\/itmax.cn\/?p=10006422","title":{"rendered":"\u9762\u8bd5\u5b98\uff1a\u5355\u6838 CPU \u652f\u6301 Java 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loading=\"lazy\"><\/p>\n<h5>\u7ebf\u7a0b\u4e0a\u4e0b\u6587\u5207\u6362\u4f1a\u6709\u4ec0\u4e48\u95ee\u9898\u5462\uff1f<\/h5>\n<p>\u4e0a\u4e0b\u6587\u5207\u6362\u4f1a\u5bfc\u81f4\u989d\u5916\u7684\u5f00\u9500\uff0c\u5e38\u5e38\u8868\u73b0\u4e3a\u9ad8\u5e76\u53d1\u6267\u884c\u65f6\u901f\u5ea6\u4f1a\u6162\u4e32\u884c\uff0c\u56e0\u6b64\u51cf\u5c11\u4e0a\u4e0b\u6587\u5207\u6362\u6b21\u6570\u4fbf\u53ef\u4ee5\u63d0\u9ad8\u591a\u7ebf\u7a0b\u7a0b\u5e8f\u7684\u8fd0\u884c\u6548\u7387\u3002<\/p>\n<ul>\n<li>\u76f4\u63a5\u6d88\u8017\uff1a\u6307\u7684\u662fCPU\u5bc4\u5b58\u5668\u9700\u8981\u4fdd\u5b58\u548c\u52a0\u8f7d, \u7cfb\u7edf\u8c03\u5ea6\u5668\u7684\u4ee3\u7801\u9700\u8981\u6267\u884c, TLB\u5b9e\u4f8b\u9700\u8981\u91cd\u65b0\u52a0\u8f7d, CPU \u7684pipeline\u9700\u8981\u5237\u6389<\/li>\n<li>\u95f4\u63a5\u6d88\u8017\uff1a\u6307\u7684\u662f\u591a\u6838\u7684cache\u4e4b\u95f4\u5f97\u5171\u4eab\u6570\u636e, \u95f4\u63a5\u6d88\u8017\u5bf9\u4e8e\u7a0b\u5e8f\u7684\u5f71\u54cd\u8981\u770b\u7ebf\u7a0b\u5de5\u4f5c\u533a\u64cd\u4f5c\u6570\u636e\u7684\u5927\u5c0f<\/li>\n<\/ul>\n<h2>\u5207\u6362\u67e5\u770b<\/h2>\n<p>Linux\u7cfb\u7edf\u4e0b\u53ef\u4ee5\u4f7f\u7528vmstat\u547d\u4ee4\u6765\u67e5\u770b\u4e0a\u4e0b\u6587\u5207\u6362\u7684\u6b21\u6570\uff0c \u5176\u4e2dcs\u5217\u5c31\u662f\u6307\u4e0a\u4e0b\u6587\u5207\u6362\u7684\u6570\u76ee\uff08\u4e00\u822c\u60c5\u51b5\u4e0b, \u7a7a\u95f2\u7cfb\u7edf\u7684\u4e0a\u4e0b\u6587\u5207\u6362\u6bcf\u79d2\u5927\u6982\u57281500\u4ee5\u4e0b\uff09<\/p>\n<p><img decoding=\"async\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/bVc2eIE\" alt=\"\" title=\"\" loading=\"lazy\"><\/p>\n<h2>\u7ebf\u7a0b\u8c03\u5ea6<\/h2>\n<h5>\u62a2\u5360\u5f0f\u8c03\u5ea6<\/h5>\n<p>\u6307\u7684\u662f\u6bcf\u6761\u7ebf\u7a0b\u6267\u884c\u7684\u65f6\u95f4\u3001\u7ebf\u7a0b\u7684\u5207\u6362\u90fd\u7531\u7cfb\u7edf\u63a7\u5236\uff0c\u7cfb\u7edf\u63a7\u5236\u6307\u7684\u662f\u5728\u7cfb\u7edf\u67d0\u79cd\u8fd0\u884c\u673a\u5236\u4e0b\uff0c\u53ef\u80fd\u6bcf\u6761\u7ebf\u7a0b\u90fd\u5206\u540c\u6837\u7684\u6267\u884c\u65f6\u95f4\u7247\uff0c\u4e5f\u53ef\u80fd\u662f\u67d0\u4e9b\u7ebf\u7a0b\u6267\u884c\u7684\u65f6\u95f4\u7247\u8f83\u957f\uff0c\u751a\u81f3\u67d0\u4e9b\u7ebf\u7a0b\u5f97\u4e0d\u5230\u6267\u884c\u7684\u65f6\u95f4\u7247\u3002\u5728\u8fd9\u79cd\u673a\u5236\u4e0b\uff0c\u4e00\u4e2a\u7ebf\u7a0b\u7684\u5835\u585e\u4e0d\u4f1a\u5bfc\u81f4\u6574\u4e2a\u8fdb\u7a0b\u5835\u585e\u3002<\/p>\n<p>java\u4f7f\u7528\u7684\u7ebf\u7a0b\u8c03\u4f7f\u7528\u62a2\u5360\u5f0f\u8c03\u5ea6\uff0cJava\u4e2d\u7ebf\u7a0b\u4f1a\u6309\u4f18\u5148\u7ea7\u5206\u914dCPU\u65f6\u95f4\u7247\u8fd0\u884c\uff0c\u4e14\u4f18\u5148\u7ea7\u8d8a\u9ad8\u8d8a\u4f18\u5148\u6267\u884c\uff0c\u4f46\u4f18\u5148\u7ea7\u9ad8\u5e76\u4e0d\u4ee3\u8868\u80fd\u72ec\u81ea\u5360\u7528\u6267\u884c\u65f6\u95f4\u7247\uff0c\u53ef\u80fd\u662f\u4f18\u5148\u7ea7\u9ad8\u5f97\u5230\u8d8a\u591a\u7684\u6267\u884c\u65f6\u95f4\u7247\uff0c\u53cd\u4e4b\uff0c\u4f18\u5148\u7ea7\u4f4e\u7684\u5206\u5230\u7684\u6267\u884c\u65f6\u95f4\u5c11\u4f46\u4e0d\u4f1a\u5206\u914d\u4e0d\u5230\u6267\u884c\u65f6\u95f4\u3002<\/p>\n<p><img decoding=\"async\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/bVc2eIF\" alt=\"\" title=\"\" loading=\"lazy\"><\/p>\n<h5>\u534f\u540c\u5f0f\u8c03\u5ea6<\/h5>\n<p>\u6307\u67d0\u4e00\u7ebf\u7a0b\u6267\u884c\u5b8c\u540e\u4e3b\u52a8\u901a\u77e5\u7cfb\u7edf\u5207\u6362\u5230\u53e6\u4e00\u7ebf\u7a0b\u4e0a\u6267\u884c\uff0c\u8fd9\u79cd\u6a21\u5f0f\u5c31\u50cf\u63a5\u529b\u8d5b\u4e00\u6837\uff0c\u4e00\u4e2a\u4eba\u8dd1\u5b8c\u81ea\u5df1\u7684\u8def\u7a0b\u5c31\u628a\u63a5\u529b\u68d2\u4ea4\u63a5\u7ed9\u4e0b\u4e00\u4e2a\u4eba\uff0c\u4e0b\u4e2a\u4eba\u7ee7\u7eed\u5f80\u4e0b\u8dd1\u3002\u7ebf\u7a0b\u7684\u6267\u884c\u65f6\u95f4\u7531\u7ebf\u7a0b\u672c\u8eab\u63a7\u5236\uff0c\u7ebf\u7a0b\u5207\u6362\u53ef\u4ee5\u9884\u77e5\uff0c\u4e0d\u5b58\u5728\u591a\u7ebf\u7a0b\u540c\u6b65\u95ee\u9898\uff0c\u4f46\u5b83\u6709\u4e00\u4e2a\u81f4\u547d\u5f31\u70b9\uff1a\u5982\u679c\u4e00\u4e2a\u7ebf\u7a0b\u7f16\u5199\u6709\u95ee\u9898\uff0c\u8fd0\u884c\u5230\u4e00\u534a\u5c31\u4e00\u76f4\u5835\u585e\uff0c\u90a3\u4e48\u53ef\u80fd\u5bfc\u81f4\u6574\u4e2a\u7cfb\u7edf\u5d29\u6e83\u3002<\/p>\n<p><img decoding=\"async\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/bVc2eIG\" alt=\"\" title=\"\" loading=\"lazy\"><\/p>\n<h5>\u7ebf\u7a0b\u8ba9\u51facpu\u7684\u60c5\u51b5<\/h5>\n<ul>\n<li>\u5f53\u524d\u8fd0\u884c\u7ebf\u7a0b\u4e3b\u52a8\u653e\u5f03CPU\uff0cJVM\u6682\u65f6\u653e\u5f03CPU\u64cd\u4f5c\uff08\u57fa\u4e8e\u65f6\u95f4\u7247\u8f6e\u8f6c\u8c03\u5ea6\u7684JVM\u64cd\u4f5c\u7cfb\u7edf\u4e0d\u4f1a\u8ba9\u7ebf\u7a0b\u6c38\u4e45\u653e\u5f03CPU\uff0c\u6216\u8005\u8bf4\u653e\u5f03\u672c\u6b21\u65f6\u95f4\u7247\u7684\u6267\u884c\u6743\uff09\uff0c\u4f8b\u5982\u8c03\u7528<code>yield()<\/code>\u65b9\u6cd5\u3002<\/li>\n<li>\u5f53\u524d\u8fd0\u884c\u7ebf\u7a0b\u56e0\u4e3a\u67d0\u4e9b\u539f\u56e0\u8fdb\u5165\u963b\u585e\u72b6\u6001\uff0c\u4f8b\u5982\u963b\u585e\u5728I\/O\u4e0a<\/li>\n<li>\u5f53\u524d\u8fd0\u884c\u7ebf\u7a0b\u7ed3\u675f\uff0c\u5373\u8fd0\u884c\u5b8c<code>run()<\/code>\u65b9\u6cd5\u91cc\u9762\u7684\u4efb\u52a1<\/li>\n<\/ul>\n<h2>\u5f15\u8d77\u7ebf\u7a0b\u4e0a\u4e0b\u6587\u5207\u6362\u7684\u56e0\u7d20<\/h2>\n<ul>\n<li>\u5f53\u524d\u6267\u884c\u4efb\u52a1\uff08\u7ebf\u7a0b\uff09\u7684\u65f6\u95f4\u7247\u7528\u5b8c\u4e4b\u540e\uff0c\u7cfb\u7edfCPU\u6b63\u5e38\u8c03\u5ea6\u4e0b\u4e00\u4e2a\u4efb\u52a1<\/li>\n<li>\u4e2d\u65ad\u5904\u7406\uff0c\u5728\u4e2d\u65ad\u5904\u7406\u4e2d\uff0c\u5176\u4ed6\u7a0b\u5e8f\u201d\u6253\u65ad\u201d\u4e86\u5f53\u524d\u6b63\u5728\u8fd0\u884c\u7684\u7a0b\u5e8f\u3002\u5f53CPU\u63a5\u6536\u5230\u4e2d\u65ad\u8bf7\u6c42\u65f6\uff0c\u4f1a\u5728\u6b63\u5728\u8fd0\u884c\u7684\u7a0b\u5e8f\u548c\u53d1\u8d77\u4e2d\u65ad\u8bf7\u6c42\u7684\u7a0b\u5e8f\u4e4b\u95f4\u8fdb\u884c\u4e00\u6b21\u4e0a\u4e0b\u6587\u5207\u6362\u3002\u4e2d\u65ad\u5206\u4e3a\u786c\u4ef6\u4e2d\u65ad\u548c\u8f6f\u4ef6\u4e2d\u65ad\uff0c\u8f6f\u4ef6\u4e2d\u65ad\u5305\u62ec\u56e0\u4e3aIO\u963b\u585e\u3001\u672a\u62a2\u5230\u8d44\u6e90\u6216\u8005\u7528\u6237\u4ee3\u7801\u7b49\u539f\u56e0\uff0c\u7ebf\u7a0b\u88ab\u6302\u8d77\u3002<\/li>\n<li>\u7528\u6237\u6001\u5207\u6362\uff0c\u5bf9\u4e8e\u4e00\u4e9b\u64cd\u4f5c\u7cfb\u7edf\uff0c\u5f53\u8fdb\u884c\u7528\u6237\u6001\u5207\u6362\u65f6\u4e5f\u4f1a\u8fdb\u884c\u4e00\u6b21\u4e0a\u4e0b\u6587\u5207\u6362\uff0c\u867d\u7136\u8fd9\u4e0d\u662f\u5fc5\u987b\u7684\u3002<\/li>\n<li>\u591a\u4e2a\u4efb\u52a1\u62a2\u5360\u9501\u8d44\u6e90\uff0c\u5728\u591a\u4efb\u52a1\u5904\u7406\u4e2d\uff0cCPU\u4f1a\u5728\u4e0d\u540c\u7a0b\u5e8f\u4e4b\u95f4\u6765\u56de\u5207\u6362\uff0c\u6bcf\u4e2a\u7a0b\u5e8f\u90fd\u6709\u76f8\u5e94\u7684\u5904\u7406\u65f6\u95f4\u7247\uff0cCPU\u5728\u4e24\u4e2a\u65f6\u95f4\u7247\u7684\u95f4\u9694\u4e2d\u8fdb\u884c\u4e0a\u4e0b\u6587\u5207\u6362<\/li>\n<\/ul>\n<h5>\u56e0\u6b64\u4f18\u5316\u624b\u6bb5\u6709\uff1a<\/h5>\n<ul>\n<li>\u65e0\u9501\u5e76\u53d1\u7f16\u7a0b\uff0c\u591a\u7ebf\u7a0b\u5904\u7406\u6570\u636e\u65f6\uff0c\u53ef\u4ee5\u7528\u4e00\u4e9b\u529e\u6cd5\u6765\u907f\u514d\u4f7f\u7528\u9501\uff0c\u5982\u5c06\u6570\u636e\u7684ID\u6309\u7167Hash\u53d6\u6a21\u5206\u6bb5\uff0c\u4e0d\u540c\u7684\u7ebf\u7a0b\u5904\u7406\u4e0d\u540c\u6bb5\u7684\u6570\u636e<\/li>\n<li>CAS\u7b97\u6cd5\uff0cJava\u7684Atomic\u5305\u4f7f\u7528CAS\u7b97\u6cd5\u6765\u66f4\u65b0\u6570\u636e\uff0c\u800c\u4e0d\u9700\u8981\u52a0\u9501<\/li>\n<li>\u4f7f\u7528\u6700\u5c11\u7ebf\u7a0b<\/li>\n<li>\u534f\u7a0b\uff0c\u5355\u7ebf\u7a0b\u91cc\u5b9e\u73b0\u591a\u4efb\u52a1\u7684\u8c03\u5ea6\uff0c\u5e76\u5728\u5355\u7ebf\u7a0b\u91cc\u7ef4\u6301\u591a\u4e2a\u4efb\u52a1\u95f4\u7684\u5207\u6362<\/li>\n<\/ul>\n<p>\u5408\u7406\u8bbe\u7f6e\u7ebf\u7a0b\u6570\u76ee\u65e2\u53ef\u4ee5\u6700\u5927\u5316\u5229\u7528CPU\uff0c\u53c8\u53ef\u4ee5\u51cf\u5c11\u7ebf\u7a0b\u5207\u6362\u7684\u5f00\u9500\u3002<\/p>\n<ul>\n<li>\u9ad8\u5e76\u53d1\uff0c\u4f4e\u8017\u65f6\u7684\u60c5\u51b5\uff0c\u5efa\u8bae\u5c11\u7ebf\u7a0b\u3002<\/li>\n<li>\u4f4e\u5e76\u53d1\uff0c\u9ad8\u8017\u65f6\u7684\u60c5\u51b5\uff1a\u5efa\u8bae\u591a\u7ebf\u7a0b\u3002<\/li>\n<li>\u9ad8\u5e76\u53d1\u9ad8\u8017\u65f6\uff0c\u8981\u5206\u6790\u4efb\u52a1\u7c7b\u578b\u3001\u589e\u52a0\u6392\u961f\u3001\u52a0\u5927\u7ebf\u7a0b\u6570<\/li>\n<\/ul>\n<p>\u6765\u6e90\uff1ablog.csdn.net\/alex_xfboy\/article\/details\/90722654<\/p>\n<p><strong>\u8fd1\u671f\u70ed\u6587\u63a8\u8350\uff1a<\/strong><\/p>\n<p>1.<a href=\"https:\/\/link.segmentfault.com\/?enc=V9Q9bS3HXyXg6BLb3gdZFQ%3D%3D.KD%2BuKz7KpON2ftTV3PYCNuuJdiMPfqDFZHuMBdwRlzo%3D\" rel=\"nofollow\">1,000+ \u9053 Java\u9762\u8bd5\u9898\u53ca\u7b54\u6848\u6574\u7406(2022\u6700\u65b0\u7248)<\/a><\/p>\n<p>2.<a href=\"https:\/\/link.segmentfault.com\/?enc=8xNTFNBiFIni%2FBCTMSS%2B5w%3D%3D.xxZIpdroep0DZnkY0RxTqOW8MewC7AClrXoJpy99%2FN3Z%2BL%2B3UJVnDPJGx%2FGh0V5cdt7fdbRqoyS0fCi2fvFYQA%3D%3D\" rel=\"nofollow\">\u52b2\u7206\uff01Java \u534f\u7a0b\u8981\u6765\u4e86\u3002\u3002\u3002<\/a><\/p>\n<p>3.<a href=\"https:\/\/link.segmentfault.com\/?enc=ZrM8%2FsrHi94G7CrhIrtc1A%3D%3D.%2FxCgFCrCAxdTP4XtxJyeecocfiVBzGOmPXnPD%2B218SfsvA4InO7fi%2BKtOQQAq3XE\" rel=\"nofollow\">Spring Boot 2.x \u6559\u7a0b\uff0c\u592a\u5168\u4e86\uff01<\/a><\/p>\n<p>4.<a href=\"https:\/\/link.segmentfault.com\/?enc=BAb%2Bb2UZZkYHPpz7b84DsQ%3D%3D.StMInYWjp2ugYXYr91FHLasqEcAo1GORcnhQotMrDK8y00k2nFx%2BesQWr382zvO1pQvtIqHOT0L6pDgVWFRebQ%3D%3D\" rel=\"nofollow\">\u522b\u518d\u5199\u6ee1\u5c4f\u7684\u7206\u7206\u7206\u70b8\u7c7b\u4e86\uff0c\u8bd5\u8bd5\u88c5\u9970\u5668\u6a21\u5f0f\uff0c\u8fd9\u624d\u662f\u4f18\u96c5\u7684\u65b9\u5f0f\uff01\uff01<\/a><\/p>\n<p>5.<a href=\"https:\/\/link.segmentfault.com\/?enc=YdbAtMIFYpPZJFyza1Egjg%3D%3D.LENCSwHvOXZ4bug0FTtnc9eiIBjMOG5qGtZOnkEKHrrdj8W%2FxJWs1VwOaqv0Zrh1%2BnHvqZfDTsxQCh%2Bck8UT8%2Fy9jJBCHrEwPqS%2Bb51ZmuQ%3D\" rel=\"nofollow\">\u300aJava\u5f00\u53d1\u624b\u518c\uff08\u5d69\u5c71\u7248\uff09\u300b\u6700\u65b0\u53d1\u5e03\uff0c\u901f\u901f\u4e0b\u8f7d\uff01<\/a><\/p>\n<p>\u89c9\u5f97\u4e0d\u9519\uff0c\u522b\u5fd8\u4e86\u968f\u624b\u70b9\u8d5e+\u8f6c\u53d1\u54e6\uff01<\/p>\n<p><a href=\"https:\/\/segmentfault.com\/a\/1190000042439901\">https:\/\/segmentfault.com\/a\/1190000042439901<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u7531\u4e8e\u73b0\u5728\u5927\u591a\u8ba1\u7b97\u673a\u90fd\u662f\u591a\u6838CPU\uff0c\u591a\u7ebf\u7a0b\u5f80\u5f80\u4f1a\u6bd4\u5355\u7ebf\u7a0b\u66f4\u5feb\uff0c\u66f4\u80fd\u591f\u63d0\u9ad8\u5e76\u53d1\uff0c\u4f46\u63d0\u9ad8\u5e76\u53d1\u5e76\u4e0d\u610f\u5473\u7740\u542f\u52a8\u66f4\u591a\u7684\u7ebf\u7a0b 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