{"id":59691,"date":"2023-10-29T22:39:10","date_gmt":"2023-10-29T14:39:10","guid":{"rendered":"https:\/\/docs.pingcode.com\/?p=59691"},"modified":"2023-10-29T22:39:11","modified_gmt":"2023-10-29T14:39:11","slug":"%e5%a6%82%e4%bd%95%e5%a4%84%e7%90%86linux%e7%b3%bb%e7%bb%9f%e4%b8%ad%e5%87%ba%e7%8e%b0%e7%9a%84%e7%b3%bb%e7%bb%9f%e5%86%85%e5%ad%98%e4%b8%8d%e8%b6%b3%e9%97%ae%e9%a2%98","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/59691.html","title":{"rendered":"\u5982\u4f55\u5904\u7406Linux\u7cfb\u7edf\u4e2d\u51fa\u73b0\u7684\u7cfb\u7edf\u5185\u5b58\u4e0d\u8db3\u95ee\u9898"},"content":{"rendered":"\n<blockquote class=\"wp-block-quote\">\n<p>\u9762\u5bf9Linux\u7cfb\u7edf\u7684\u5185\u5b58\u4e0d\u8db3\u95ee\u9898\uff0c\u4f60\u9700\u8981\u9075\u5faa\u4ee5\u4e0b\u6b65\u9aa4\uff1a1.\u786e\u5b9a\u5185\u5b58\u74f6\u9888\uff1b2.\u9009\u62e9\u9002\u5f53\u7684\u5185\u5b58\u7ba1\u7406\u5de5\u5177\uff1b3.\u8003\u8651\u4f7f\u7528swap\u5206\u533a\uff1b4.\u4f18\u5316\u5e94\u7528\u7a0b\u5e8f\uff1b5.\u914d\u7f6e\u5185\u6838\u53c2\u6570\u548c\u8fdb\u7a0b\u3002\u5f53\u7cfb\u7edf\u7684\u8fd0\u884c\u901f\u5ea6\u53d8\u6162\u6216\u51fa\u73b0\u9519\u8bef\u65f6\uff0c\u5185\u5b58\u74f6\u9888\u53ef\u80fd\u662f\u5176\u4e2d\u7684\u4e00\u4e2a\u539f\u56e0\u3002<\/p>\n<\/blockquote>\n\n\n\n<h2 class=\"wp-block-heading\">1.\u786e\u5b9a\u5185\u5b58\u74f6\u9888<\/h2>\n\n\n\n<p>\u5f53Linux\u7cfb\u7edf\u8fd0\u884c\u7f13\u6162\u6216\u51fa\u73b0\u95ee\u9898\u65f6\uff0c\u9996\u5148\u8981\u505a\u7684\u662f\u786e\u5b9a\u662f\u5426\u5b58\u5728\u5185\u5b58\u74f6\u9888\u3002\u4f7f\u7528free, vmstat\u6216top\u547d\u4ee4\u53ef\u4ee5\u5e2e\u52a9\u4f60\u5feb\u901f\u8bc6\u522b\u5185\u5b58\u4f7f\u7528\u60c5\u51b5\u3002\u9ad8\u7684Swap\u4f7f\u7528\u91cf\u548c\u6301\u7eed\u7684\u9875\u9762\u4ea4\u6362\u901a\u5e38\u662f\u5185\u5b58\u538b\u529b\u7684\u6807\u5fd7\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">2.\u9009\u62e9\u9002\u5f53\u7684\u5185\u5b58\u7ba1\u7406\u5de5\u5177<\/h2>\n\n\n\n<p>Linux\u62e5\u6709\u591a\u79cd\u5185\u5b58\u7ba1\u7406\u5de5\u5177\uff0c\u4f8b\u5982htop, glances, \u548cps\u3002\u6839\u636e\u4f60\u7684\u9700\u8981\u548c\u719f\u6089\u5ea6\u9009\u62e9\u5408\u9002\u7684\u5de5\u5177\uff0c\u8fd9\u6837\u53ef\u4ee5\u66f4\u6709\u6548\u5730\u76d1\u63a7\u548c\u7ba1\u7406\u7cfb\u7edf\u5185\u5b58\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">3.\u8003\u8651\u4f7f\u7528swap\u5206\u533a<\/h2>\n\n\n\n<p>Swap\u5206\u533a\u662f\u5f53\u7269\u7406\u5185\u5b58\u4e0d\u8db3\u65f6\u4f7f\u7528\u7684\u786c\u76d8\u7a7a\u95f4\u3002\u867d\u7136\u5b83\u6bd4RAM\u6162\uff0c\u4f46\u53ef\u4ee5\u4f5c\u4e3a\u7f13\u51b2\uff0c\u9884\u9632\u7cfb\u7edf\u5185\u5b58\u8017\u5c3d\u3002\u8003\u8651\u8c03\u6574\u6216\u589e\u52a0swap\u7a7a\u95f4\uff0c\u4ee5\u63d0\u4f9b\u989d\u5916\u7684\u5185\u5b58\u7f13\u51b2\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">4.\u4f18\u5316\u5e94\u7528\u7a0b\u5e8f<\/h2>\n\n\n\n<p>\u67d0\u4e9b\u5e94\u7528\u7a0b\u5e8f\u53ef\u80fd\u4f1a\u6d88\u8017\u5927\u91cf\u7684\u5185\u5b58\u8d44\u6e90\u3002\u8003\u8651\u5bf9\u8fd9\u4e9b\u5e94\u7528\u7a0b\u5e8f\u8fdb\u884c\u4f18\u5316\u6216\u67e5\u627e\u66f4\u52a0\u9ad8\u6548\u7684\u66ff\u4ee3\u65b9\u6848\u3002\u4f8b\u5982\uff0c\u4f7f\u7528\u66f4\u8f7b\u91cf\u7ea7\u7684\u670d\u52a1\u6216\u5de5\u5177\uff0c\u6216\u8005\u5b9a\u671f\u68c0\u67e5\u5e76\u7ed3\u675f\u4e0d\u518d\u9700\u8981\u7684\u540e\u53f0\u8fdb\u7a0b\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">5.\u914d\u7f6e\u5185\u6838\u53c2\u6570\u548c\u8fdb\u7a0b<\/h2>\n\n\n\n<p>Linux\u5185\u6838\u53c2\u6570\u5982vm.swappiness\u548cvm.overcommit_memory\u53ef\u4ee5\u8c03\u6574\u4ee5\u4f18\u5316\u5185\u5b58\u4f7f\u7528\u3002\u6b64\u5916\uff0c\u901a\u8fc7\u8c03\u6574\u8fdb\u7a0b\u7684nice\u503c\u6216cgroup\u8bbe\u7f6e\uff0c\u53ef\u4ee5\u66f4\u597d\u5730\u7ba1\u7406\u8fdb\u7a0b\u7684\u8d44\u6e90\u4f7f\u7528\u3002<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img fetchpriority=\"high\" decoding=\"async\" width=\"484\" height=\"300\" src=\"https:\/\/cdn-docs.pingcode.com\/wp-content\/uploads\/2023\/10\/1029-16.jpg?x-oss-process=image\/auto-orient,1\/format,webp\" alt=\"\" class=\"wp-image-59692\" \/><\/figure><\/div>\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\" \/>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>\u5e38\u89c1\u95ee\u7b54<\/strong><\/h2>\n\n\n\n<div class=\"wp-block-group is-vertical is-layout-flex wp-container-core-group-layout-1 wp-block-group-is-layout-flex\">\n<ul>\n<li><strong>Q1: \u5982\u4f55\u5feb\u901f\u68c0\u67e5Linux\u7cfb\u7edf\u7684\u5185\u5b58\u4f7f\u7528\u60c5\u51b5\uff1f<\/strong><\/li>\n\n\n\n<li><strong>A1: <\/strong>\u4f60\u53ef\u4ee5\u4f7f\u7528\u547d\u4ee4free -h\u3001top\u6216htop\u6765\u5feb\u901f\u67e5\u770b\u7cfb\u7edf\u7684\u5185\u5b58\u4f7f\u7528\u60c5\u51b5\u3002\u5176\u4e2d\uff0cfree -h\u53ef\u4ee5\u63d0\u4f9b\u6613\u4e8e\u9605\u8bfb\u7684\u5185\u5b58\u548cswap\u4f7f\u7528\u6458\u8981\u3002<\/li>\n<\/ul>\n<\/div>\n\n\n\n<div class=\"wp-block-group is-vertical is-layout-flex wp-container-core-group-layout-2 wp-block-group-is-layout-flex\">\n<ul>\n<li><strong>Q2: \u5f53\u6211\u53d1\u73b0Swap\u4f7f\u7528\u7387\u5f88\u9ad8\u65f6\uff0c\u610f\u5473\u7740\u4ec0\u4e48\uff1f<\/strong><\/li>\n\n\n\n<li><strong>A2: <\/strong>\u9ad8\u7684Swap\u4f7f\u7528\u7387\u901a\u5e38\u8868\u793a\u7269\u7406RAM\u5df2\u7ecf\u7528\u5c3d\uff0c\u7cfb\u7edf\u6b63\u5728\u4f7f\u7528\u786c\u76d8\u4e0a\u7684swap\u5206\u533a\u4f5c\u4e3a\u5907\u7528\u5185\u5b58\u3002\u957f\u65f6\u95f4\u9ad8Swap\u4f7f\u7528\u53ef\u80fd\u4f1a\u5bfc\u81f4\u7cfb\u7edf\u6027\u80fd\u4e0b\u964d\uff0c\u56e0\u4e3a\u786c\u76d8\u7684\u8bbf\u95ee\u901f\u5ea6\u8fdc\u4f4e\u4e8eRAM\u3002<\/li>\n<\/ul>\n<\/div>\n\n\n\n<div class=\"wp-block-group is-vertical is-layout-flex wp-container-core-group-layout-3 wp-block-group-is-layout-flex\">\n<ul>\n<li><strong>Q3: \u5982\u4f55\u589e\u52a0\u6216\u8c03\u6574Linux\u7cfb\u7edf\u7684swap\u7a7a\u95f4\uff1f<\/strong><\/li>\n\n\n\n<li><strong>A3: <\/strong>\u4f60\u53ef\u4ee5\u4f7f\u7528fallocate\u6216dd\u547d\u4ee4\u521b\u5efa\u4e00\u4e2aswap\u6587\u4ef6\uff0c\u7136\u540e\u4f7f\u7528mkswap\u548cswapon\u547d\u4ee4\u6765\u542f\u7528\u5b83\u3002\u5982\u679c\u662fswap\u5206\u533a\uff0c\u4f60\u53ef\u80fd\u9700\u8981\u8c03\u6574\u5206\u533a\u5927\u5c0f\u6216\u6dfb\u52a0\u65b0\u7684swap\u5206\u533a\u3002<\/li>\n<\/ul>\n<\/div>\n\n\n\n<div class=\"wp-block-group is-vertical is-layout-flex wp-container-core-group-layout-4 wp-block-group-is-layout-flex\">\n<ul>\n<li><strong>Q4: \u662f\u5426\u5b58\u5728\u5de5\u5177\u53ef\u4ee5\u81ea\u52a8\u4f18\u5316Linux\u7684\u5185\u5b58\u4f7f\u7528\uff1f<\/strong><\/li>\n\n\n\n<li><strong>A4: <\/strong>\u6709\u4e00\u4e9b\u5de5\u5177\uff0c\u5982earlyoom\u548cnohang\uff0c\u53ef\u4ee5\u5728\u7cfb\u7edf\u5185\u5b58\u4e0d\u8db3\u65f6\u81ea\u52a8\u5e72\u9884\uff0c\u4f46\u6700\u4f73\u7684\u7b56\u7565\u8fd8\u662f\u624b\u52a8\u76d1\u63a7\u548c\u4f18\u5316\u5185\u5b58\u4f7f\u7528\uff0c\u786e\u4fdd\u7cfb\u7edf\u7684\u7a33\u5b9a\u6027\u548c\u6027\u80fd\u3002<\/li>\n<\/ul>\n<\/div>\n\n\n\n<div class=\"wp-block-group is-vertical is-layout-flex wp-container-core-group-layout-5 wp-block-group-is-layout-flex\">\n<ul>\n<li><strong>Q5: Linux\u5185\u6838\u53c2\u6570vm.swappiness\u662f\u4ec0\u4e48\u610f\u601d\uff1f<\/strong><\/li>\n\n\n\n<li><strong>A5: <\/strong>vm.swappiness\u51b3\u5b9a\u4e86\u7cfb\u7edf\u5e94\u8be5\u5982\u4f55\u79ef\u6781\u5730\u5c06\u5185\u5b58\u9875\u9762\u4ea4\u6362\u5230swap\u7a7a\u95f4\u3002\u6570\u503c\u8303\u56f4\u4e3a0-100\uff0c\u8f83\u9ad8\u7684\u503c\u8868\u793a\u7cfb\u7edf\u66f4\u503e\u5411\u4e8e\u4f7f\u7528swap\uff0c\u800c\u8f83\u4f4e\u7684\u503c\u5219\u66f4\u504f\u5411\u4e8e\u4fdd\u7559\u7269\u7406RAM\u3002<\/li>\n<\/ul>\n<\/div>\n","protected":false},"excerpt":{"rendered":"\u9762\u5bf9Linux\u7cfb\u7edf\u7684\u5185\u5b58\u4e0d\u8db3\u95ee\u9898\uff0c\u4f60\u9700\u8981\u9075\u5faa\u4ee5\u4e0b\u6b65\u9aa4\uff1a1.\u786e\u5b9a\u5185\u5b58\u74f6\u9888\uff1b2.\u9009\u62e9\u9002\u5f53\u7684\u5185\u5b58\u7ba1\u7406\u5de5\u5177\uff1b3.\u8003\u8651\u4f7f\u7528swap\u5206\u533a\uff1b4.\u4f18\u5316\u5e94\u7528\u7a0b\u5e8f\uff1b5.\u914d\u7f6e\u5185\u6838\u53c2\u6570\u548c\u8fdb\u7a0b\u3002\u5f53\u7cfb\u7edf\u7684\u8fd0\u884c\u901f\u5ea6\u53d8\u6162\u6216\u51fa\u73b0\u9519\u8bef\u65f6 ...","protected":false},"author":8,"featured_media":59692,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[37],"tags":[],"acf":[],"_links":{"self":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/59691"}],"collection":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/users\/8"}],"replies":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/comments?post=59691"}],"version-history":[{"count":0,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/59691\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/59692"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=59691"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=59691"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=59691"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}