{"id":10463,"date":"2023-11-28T21:35:29","date_gmt":"2023-11-28T13:35:29","guid":{"rendered":"https:\/\/wx.kaifamiao.info\/?p=10463"},"modified":"2023-12-07T11:29:35","modified_gmt":"2023-12-07T03:29:35","slug":"jvm-xuan-xiangxx-usecompressedoops-you-shen-me-zuo","status":"publish","type":"post","link":"http:\/\/wx.kaifamiao.info\/index.php\/2023\/11\/28\/jvm-xuan-xiangxx-usecompressedoops-you-shen-me-zuo\/","title":{"rendered":"JVM\u9009\u9879-XX: +UseCompressedOops\u6709\u4ec0\u4e48\u4f5c\u7528\uff1f\u4e3a\u4ec0\u4e48\u8981\u4f7f\u7528"},"content":{"rendered":"

-XX:+UseCompressedOops<\/code> \u662f\u4e00\u9879\u7528\u4e8e\u542f\u7528\u6216\u7981\u7528\u6307\u9488\u538b\u7f29\uff08Compressed Oops\uff09\u7684 JVM\uff08Java \u865a\u62df\u673a\uff09\u9009\u9879\u3002\u8fd9\u4e2a\u9009\u9879\u7684\u4f5c\u7528\u662f\u572864\u4f4d\u7684 Java \u865a\u62df\u673a\u4e2d\u4f7f\u7528\u538b\u7f29\u6307\u9488\uff0c\u4ee5\u51cf\u5c0f\u5bf9\u8c61\u5f15\u7528\u7684\u5185\u5b58\u5360\u7528\u3002<\/p>\n

\u572832\u4f4d\u7cfb\u7edf\u4e2d\uff0c\u4e00\u4e2a\u5bf9\u8c61\u5f15\u7528\u901a\u5e38\u5360\u75284\u4e2a\u5b57\u8282\u7684\u7a7a\u95f4\uff0c\u56e0\u4e3a\u5730\u5740\u7a7a\u95f4\u8f83\u5c0f\uff0c\u4e0d\u9700\u8981\u8fc7\u591a\u7684\u4f4d\u6570\u6765\u8868\u793a\u5730\u5740\u3002\u4f46\u572864\u4f4d\u7cfb\u7edf\u4e0a\uff0c\u4e00\u4e2a\u666e\u901a\u7684\u5bf9\u8c61\u5f15\u7528\u53ef\u80fd\u9700\u8981\u5360\u75288\u4e2a\u5b57\u8282\uff0c\u8fd9\u4f1a\u5bfc\u81f4\u4e00\u4e9b\u989d\u5916\u7684\u5185\u5b58\u6d88\u8017\uff0c\u5c24\u5176\u662f\u5728\u5904\u7406\u5927\u91cf\u5bf9\u8c61\u5f15\u7528\u7684\u573a\u666f\u4e0b\u3002<\/p>\n

\u542f\u7528 -XX:+UseCompressedOops<\/code> \u540e\uff0cJava \u865a\u62df\u673a\u4f1a\u4f7f\u7528\u538b\u7f29\u6307\u9488\u7684\u65b9\u5f0f\u6765\u5b58\u50a8\u5bf9\u8c61\u5f15\u7528\uff0c\u5373\u4f7f\u7528\u66f4\u5c11\u7684\u4f4d\u6570\u8868\u793a\u5bf9\u8c61\u7684\u5730\u5740\u3002\u8fd9\u901a\u5e38\u901a\u8fc7\u5c06\u5bf9\u8c61\u5f15\u7528\u7684\u9ad8\u4f4d\u7a7a\u95f4\u7528\u6765\u5b58\u50a8\u5bf9\u8c61\u7684\u76f8\u5173\u4fe1\u606f\uff08\u4f8b\u5982\uff0c\u5bf9\u8c61\u5934\u4fe1\u606f\u3001\u504f\u79fb\u91cf\u7b49\uff09\u6765\u5b9e\u73b0\u3002<\/p>\n

\u4f7f\u7528\u538b\u7f29\u6307\u9488\u7684\u4f18\u52bf\u5305\u62ec\uff1a<\/p>\n

    \n
  1. \n\u8282\u7701\u5185\u5b58\uff1a<\/strong> \u5bf9\u4e8e\u5927\u91cf\u5bf9\u8c61\u5f15\u7528\u7684\u5e94\u7528\uff0c\u4f7f\u7528\u538b\u7f29\u6307\u9488\u53ef\u4ee5\u663e\u8457\u51cf\u5c0f\u5806\u7684\u5185\u5b58\u5360\u7528\uff0c\u964d\u4f4e\u4e86\u5783\u573e\u6536\u96c6\u7684\u5f00\u9500\u3002\n<\/li>\n
  2. \n\u63d0\u9ad8\u7f13\u5b58\u6548\u7387\uff1a<\/strong> \u538b\u7f29\u6307\u9488\u53ef\u4ee5\u4f7f\u5f97\u5bf9\u8c61\u5f15\u7528\u6240\u5360\u7528\u7684\u5185\u5b58\u66f4\u52a0\u7d27\u51d1\uff0c\u6709\u52a9\u4e8e\u63d0\u9ad8\u7f13\u5b58\u7684\u547d\u4e2d\u7387\u3002\n<\/li>\n<\/ol>\n

    \u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u5728\u4e00\u4e9b\u7279\u6b8a\u7684\u60c5\u51b5\u4e0b\uff0c\u53ef\u80fd\u5b58\u5728\u4e00\u4e9b\u6027\u80fd\u635f\u5931\u3002\u4f8b\u5982\uff0c\u5f53\u5e94\u7528\u7a0b\u5e8f\u4e2d\u6709\u5927\u91cf\u7684\u76f4\u63a5\u5185\u5b58\u8bbf\u95ee\u65f6\uff0c\u542f\u7528\u538b\u7f29\u6307\u9488\u53ef\u80fd\u5bfc\u81f4\u989d\u5916\u7684\u6307\u9488\u89e3\u538b\u7f29\u64cd\u4f5c\uff0c\u4ece\u800c\u5f15\u5165\u4e00\u4e9b\u5f00\u9500\u3002<\/p>\n

    \u603b\u7684\u6765\u8bf4\uff0c\u5bf9\u4e8e\u5927\u591a\u6570\u5e94\u7528\u6765\u8bf4\uff0c\u542f\u7528 -XX:+UseCompressedOops<\/code> \u662f\u4e00\u4e2a\u53ef\u4ee5\u63d0\u9ad8\u6027\u80fd\u548c\u51cf\u5c0f\u5185\u5b58\u5360\u7528\u7684\u4f18\u5316\u9009\u9879\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

    -XX:+UseCompressedOops \u662f\u4e00\u9879\u7528\u4e8e\u542f\u7528\u6216\u7981\u7528\u6307\u9488\u538b\u7f29\uff08Compressed Oops\uff09\u7684 […]<\/p>\n","protected":false},"author":9,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[119],"tags":[],"class_list":["post-10463","post","type-post","status-publish","format-standard","hentry","category-jvm"],"_links":{"self":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/10463","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/users\/9"}],"replies":[{"embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/comments?post=10463"}],"version-history":[{"count":2,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/10463\/revisions"}],"predecessor-version":[{"id":16844,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/10463\/revisions\/16844"}],"wp:attachment":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/media?parent=10463"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/categories?post=10463"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/tags?post=10463"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}