{"id":2050,"date":"2023-04-01T21:11:38","date_gmt":"2023-04-01T13:11:38","guid":{"rendered":"https:\/\/www.appblog.cn\/?p=2050"},"modified":"2023-04-07T06:06:28","modified_gmt":"2023-04-06T22:06:28","slug":"java-method-inline","status":"publish","type":"post","link":"https:\/\/www.appblog.cn\/index.php\/2023\/04\/01\/java-method-inline\/","title":{"rendered":"Java\u65b9\u6cd5\u5185\u8054"},"content":{"rendered":"

\u6982\u5ff5<\/h2>\n

\u65b9\u6cd5\u5185\u8054\u5c31\u662f\u628a\u8c03\u7528\u65b9\u51fd\u6570\u4ee3\u7801"\u590d\u5236"\u5230\u8c03\u7528\u65b9\u51fd\u6570\u4e2d\uff0c\u51cf\u5c11\u56e0\u51fd\u6570\u8c03\u7528\u5f00\u9500\u7684\u6280\u672f<\/p>\n

\u51fd\u6570\u8c03\u7528\u8fc7\u7a0b\uff1a<\/p>\n

<\/p>\n

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\n5\u3001\u8fd4\u56de\u539f\u6765\u7684\u5730\u5740\u6267\u884c<\/p>\n

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\u65b9\u6cd5\u5185\u8054\u7684\u539f\u7406<\/h2>\n

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\u770b\u5982\u4e0b\u4f8b\u5b50\uff1a<\/p>\n

private int add2(int x1, int x2, int x3, int x4) {\n    return add1(x1, x2) + add1(x3, x4);\n}\n\nprivate int add1(int x1, int x2) {\n    return x1 + x2;\n}<\/code><\/pre>\n
\u8fd0\u884c\u4e00\u6bb5\u65f6\u95f4\u540e\uff0c\u4ee3\u7801\u88ab\u5185\u8054\u7ffb\u8bd1\u6210\uff1a<\/p>\n
private int add2(int x1, int x2, int x3, int x4) {\n    \/\/return add1(x1, x2) + add1(x3, x4);\n    return x1 + x2 + x3 + x4;\n}<\/code><\/pre>\n
\u65b9\u6cd5\u5185\u8054\u7684\u6761\u4ef6<\/h2>\n
JVM\u4f1a\u81ea\u52a8\u7684\u8bc6\u522b\u70ed\u70b9\u65b9\u6cd5\uff0c\u5e76\u5bf9\u5b83\u4eec\u4f7f\u7528\u65b9\u6cd5\u5185\u8054\u4f18\u5316\u3002\u90a3\u4e48\u4e00\u6bb5\u4ee3\u7801\u9700\u8981\u6267\u884c\u591a\u5c11\u6b21\u624d\u4f1a\u89e6\u53d1JIT\u4f18\u5316\u5462\uff1f\u901a\u5e38\u8fd9\u4e2a\u503c\u7531-XX:CompileThreshold<\/code>\u53c2\u6570\u8fdb\u884c\u8bbe\u7f6e\uff1a<\/p>\n
    \n
  • \u4f7f\u7528client\u7f16\u8bd1\u5668\u65f6\uff0c\u9ed8\u8ba4\u4e3a1500<\/li>\n
  • \u4f7f\u7528server\u7f16\u8bd1\u5668\u65f6\uff0c\u9ed8\u8ba4\u4e3a10000<\/li>\n<\/ul>\n
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      \n
    • \u5982\u679c\u65b9\u6cd5\u662f\u7ecf\u5e38\u6267\u884c\u7684\uff0c\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u65b9\u6cd5\u5927\u5c0f\u5c0f\u4e8e325\u5b57\u8282\u7684\u90fd\u4f1a\u8fdb\u884c\u5185\u8054\uff08\u53ef\u4ee5\u901a\u8fc7-XX:MaxFreqInlineSize=N<\/code>\u6765\u8bbe\u7f6e\u8fd9\u4e2a\u5927\u5c0f\uff09<\/li>\n
    • \u5982\u679c\u65b9\u6cd5\u4e0d\u662f\u7ecf\u5e38\u6267\u884c\u7684\uff0c\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u65b9\u6cd5\u5927\u5c0f\u5c0f\u4e8e35\u5b57\u8282\u624d\u4f1a\u8fdb\u884c\u5185\u8054\uff08\u53ef\u4ee5\u901a\u8fc7-XX:MaxInlineSize=N<\/code>\u6765\u8bbe\u7f6e\u8fd9\u4e2a\u5927\u5c0f\uff09<\/li>\n<\/ul>\n
      \u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u589e\u52a0\u8fd9\u4e2a\u5927\u5c0f\uff0c\u4ee5\u4fbf\u66f4\u591a\u7684\u65b9\u6cd5\u53ef\u4ee5\u8fdb\u884c\u5185\u8054\uff1b\u4f46\u662f\u9664\u975e\u80fd\u591f\u663e\u8457\u63d0\u5347\u6027\u80fd\uff0c\u5426\u5219\u4e0d\u63a8\u8350\u4fee\u6539\u8fd9\u4e2a\u53c2\u6570\u3002\u56e0\u4e3a\u66f4\u5927\u7684\u65b9\u6cd5\u4f53\u4f1a\u5bfc\u81f4\u4ee3\u7801\u5185\u5b58\u5360\u7528\u66f4\u591a\uff0c\u66f4\u5c11\u7684\u70ed\u70b9\u65b9\u6cd5\u4f1a\u88ab\u7f13\u5b58\uff0c\u6700\u7ec8\u7684\u6548\u679c\u4e0d\u4e00\u5b9a\u597d\u3002<\/p>\n
      JVM\u53c2\u6570\uff1a-XX:+PrintCompilation<\/code> -XX:+UnlockDiagnosticVMOptions <\/code>-XX:+PrintInlining`<\/p>\n
      \u5185\u8054\u7684\u9690\u85cf\u6761\u4ef6<\/h2>\n
      \u867d\u7136JIT\u53f7\u79f0\u53ef\u4ee5\u9488\u5bf9\u4ee3\u7801\u5168\u5c40\u7684\u8fd0\u884c\u60c5\u51b5\u800c\u4f18\u5316\uff0c\u4f46\u662fJIT\u5bf9\u4e00\u4e2a\u65b9\u6cd5\u5185\u8054\u4e4b\u540e\uff0c\u8fd8\u662f\u53ef\u80fd\u56e0\u4e3a\u65b9\u6cd5\u88ab\u7ee7\u627f\uff0c\u5bfc\u81f4\u9700\u8981\u7c7b\u578b\u68c0\u67e5\u800c\u6ca1\u6709\u8fbe\u5230\u6027\u80fd\u7684\u6548\u679c
      \n\u60f3\u8981\u5bf9\u70ed\u70b9\u65b9\u6cd5\u4f7f\u7528\u4e0a\u5185\u8054\u7684\u4f18\u5316\u65b9\u6cd5\uff0c\u6700\u597d\u5c3d\u91cf\u4f7f\u7528final\u3001private\u3001static\u8fd9\u4e9b\u4fee\u9970\u7b26\u4fee\u9970\u65b9\u6cd5\uff0c\u907f\u514d\u65b9\u6cd5\u56e0\u4e3a\u7ee7\u627f\uff0c\u5bfc\u81f4\u9700\u8981\u989d\u5916\u7684\u7c7b\u578b\u68c0\u67e5\uff0c\u800c\u51fa\u73b0\u6548\u679c\u4e0d\u597d\u60c5\u51b5\u3002<\/p>\n
      \u7ed3\u8bba<\/h2>\n
      1\u3001\u9488\u5bf9\u70ed\u70b9\u65b9\u6cd5\uff0c\u60f3\u8981\u901a\u8fc7JIT\u5185\u8054\u4f18\u5316\u6765\u63d0\u5347\u6027\u80fd\u7684\u5efa\u8bae
      \n2\u3001\u66f4\u5c0f\u7684\u65b9\u6cd5\u4f53\uff0cJVM\u603b\u662f\u504f\u597d\u66f4\u5c0f\u7684\u65b9\u6cd5\u3002
      \n3\u3001\u5c3d\u91cf\u4f7f\u7528final\u3001private\u3001static\u4fee\u9970\u7b26
      \n4\u3001\u4f7f\u7528+PrintInlining<\/code>\u53c2\u6570\u6821\u9a8c\u6548\u679c\uff08\u5fc5\u987b\u914d\u5408\u53c2\u6570-XX:+UnlockDiagnosticVMOptions<\/code>\u4f7f\u7528\uff0c\u5e76\u4e14\u53ea\u80fd\u52a0\u5728\u5176\u540e\u624d\u80fd\u751f\u6548\uff09<\/p>\n","protected":false},"excerpt":{"rendered":"
      \u6982\u5ff5 \u65b9\u6cd5\u5185\u8054\u5c31\u662f\u628a\u8c03\u7528\u65b9\u51fd\u6570\u4ee3\u7801"\u590d\u5236"\u5230\u8c03\u7528\u65b9\u51fd\u6570\u4e2d\uff0c\u51cf\u5c11\u56e0\u51fd\u6570\u8c03\u7528\u5f00\u9500\u7684\u6280\u672f \u51fd\u6570\u8c03 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[43],"tags":[],"class_list":["post-2050","post","type-post","status-publish","format-standard","hentry","category-java-basic"],"_links":{"self":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/posts\/2050","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/comments?post=2050"}],"version-history":[{"count":0,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/posts\/2050\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/media?parent=2050"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/categories?post=2050"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/tags?post=2050"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}