{"id":483,"date":"2016-01-26T16:51:52","date_gmt":"2016-01-26T16:51:52","guid":{"rendered":"e1e32e235eee1f970470a3a6658dfdd5"},"modified":"2016-01-26T16:51:52","modified_gmt":"2016-01-26T16:51:52","slug":"","status":"publish","type":"post","link":"https:\/\/www.xiaobo.li\/notes\/archives\/483","title":{"rendered":"load average"},"content":{"rendered":"
\n

CPU<\/span><\/strong>\u5229\u7528\u7387\u4e0eLoad Average<\/span>\u7684\u533a\u522b\uff1f<\/span><\/strong><\/p>\n

CPU<\/span>\u5229\u7528\u7387\uff0c\u662f\u5bf9\u4e00\u4e2a\u65f6\u95f4\u6bb5\u5185CPU<\/span>\u4f7f\u7528\u72b6\u51b5\u7684\u7edf\u8ba1\uff0c\u901a\u8fc7\u8fd9\u4e2a\u6307\u6807\u53ef\u4ee5\u770b\u51fa\u5728\u67d0\u4e00\u4e2a\u65f6\u95f4\u6bb5\u5185CPU<\/span>\u88ab\u5360\u7528\u7684\u60c5\u51b5\uff0c\u5982\u679cCPU<\/span>\u88ab\u5360\u7528\u65f6\u95f4\u5f88\u9ad8\uff0c\u90a3\u4e48\u5c31\u9700\u8981\u8003\u8651CPU<\/span>\u662f\u5426\u5df2\u7ecf\u5904\u4e8e\u8d85\u8d1f\u8377\u8fd0\u4f5c\uff0c\u957f\u671f\u8d85\u8d1f\u8377\u8fd0\u4f5c\u5bf9\u4e8e\u673a\u5668\u672c\u8eab\u6765\u8bf4\u662f\u4e00\u79cd\u635f\u5bb3\uff0c\u56e0\u6b64\u5fc5\u987b\u5c06CPU<\/span>\u7684\u5229\u7528\u7387\u63a7\u5236\u5728\u4e00\u5b9a\u7684\u6bd4\u4f8b\u4e0b\uff0c\u4ee5\u4fdd\u8bc1\u673a\u5668\u7684\u6b63\u5e38\u8fd0\u4f5c\u3002<\/span><\/p>\n

Load Average<\/span>\u662f<\/span> CPU<\/span>\u7684Load<\/span>\uff0c\u5b83\u6240\u5305\u542b\u7684\u4fe1\u606f\u4e0d\u662fCPU<\/span>\u7684\u4f7f\u7528\u7387\u72b6\u51b5\uff0c\u800c\u662f\u5728\u4e00\u6bb5\u65f6\u95f4\u5185CPU<\/span>\u6b63\u5728\u5904\u7406\u4ee5\u53ca\u7b49\u5f85CPU<\/span>\u5904\u7406\u7684\u8fdb\u7a0b\u6570\u4e4b\u548c\u7684\u7edf\u8ba1\u4fe1\u606f\uff0c\u4e5f\u5c31\u662fCPU<\/span>\u4f7f\u7528\u961f\u5217\u7684\u957f\u5ea6\u7684\u7edf\u8ba1\u4fe1\u606f\u3002<\/span><\/p>\n

\u90a3\u4e48CPU<\/span>\u5229\u7528\u7387\u4e0eLoad Average<\/span>\u5bf9\u4e8e\u6027\u80fd\u6d4b\u8bd5\u7684\u610f\u4e49\u6709\u4ec0\u4e48\u533a\u522b\u5462\uff1f\u5b9e\u9645\u4e0a\uff0cCPU<\/span>\u5229\u7528\u7387\u53cd\u6620\u7684\u662fCPU<\/span>\u88ab\u4f7f\u7528\u7684\u60c5\u51b5\uff0c\u5f53CPU<\/span>\u957f\u671f\u5904\u4e8e\u88ab\u4f7f\u7528\u800c\u6ca1\u6709\u5f97\u5230\u8db3\u591f\u7684\u65f6\u95f4\u4f11\u606f\u95f4\u6b47\uff0c\u90a3\u4e48\u5bf9\u4e8eCPU<\/span>\u786c\u4ef6\u6765\u8bf4\u662f\u4e00\u79cd\u8d85\u8d1f\u8377\u7684\u8fd0\u4f5c\uff0c\u9700\u8981\u8c03\u6574\u4f7f\u7528\u9891\u5ea6\u3002\u800cLoad Average<\/span>\u5374\u4ece\u53e6\u4e00\u4e2a\u89d2\u5ea6\u6765\u5c55\u73b0\u5bf9\u4e8eCPU<\/span>\u4f7f\u7528\u72b6\u6001\u7684\u63cf\u8ff0\uff0cLoad Average<\/span>\u8d8a\u9ad8\u8bf4\u660e\u5bf9\u4e8eCPU<\/span>\u8d44\u6e90\u7684\u7ade\u4e89\u8d8a\u6fc0\u70c8\uff0cCPU<\/span>\u8d44\u6e90\u6bd4\u8f83\u77ed\u7f3a\u3002\u5bf9\u4e8e\u8d44\u6e90\u7684\u7533\u8bf7\u548c\u7ef4\u62a4\u5176\u5b9e\u4e5f\u662f\u9700\u8981\u5f88\u5927\u7684\u6210\u672c\uff0c\u6240\u4ee5\u5728\u8fd9\u79cd\u9ad8Average Load<\/span>\u7684\u60c5\u51b5\u4e0bCPU<\/span>\u8d44\u6e90\u7684\u957f\u671f\u201c\u70ed\u7ade\u4e89\u201d\u4e5f\u662f\u5bf9\u4e8e\u786c\u4ef6\u7684\u4e00\u79cd\u635f\u5bb3\u3002<\/span><\/span><\/p>\n

\u5982\u4f55\u8bc4\u4f30\u6027\u80fd\u9700\u6c42\u4e2d\u5408\u7406\u7684Load Average<\/span>\uff1f<\/span><\/strong><\/p>\n

\u4e00\u822c\u6765\u8bf4\uff0cLoad Average<\/span>\u662f\u4e0e\u673a\u5668\u5185\u6838\u6570\u6709\u5173\u7684\u3002\u4ee5\u4e00\u4e2a\u5355\u6838\u7684\u673a\u5668\u4e3a\u4f8b\uff0cload=0.5<\/span>\u8868\u793aCPU<\/span>\u8fd8\u6709\u4e00\u534a\u7684\u8d44\u6e90\u53ef\u4ee5\u5904\u7406\u5176\u4ed6\u7684\u7ebf\u7a0b\u8bf7\u6c42\uff0cload=1<\/span>\u8868\u793aCPU<\/span>\u6240\u6709\u7684\u8d44\u6e90\u90fd\u5728\u5904\u7406\u8bf7\u6c42\uff0c\u6ca1\u6709\u5269\u4f59\u7684\u8d44\u6e90\u53ef\u4ee5\u5229\u7528\u4e86\uff0c\u800cload=2<\/span>\u5219\u8868\u793aCPU<\/span>\u5df2\u7ecf\u8d85\u8d1f\u8377\u8fd0\u4f5c\uff0c\u53e6\u5916\u8fd8\u6709\u4e00\u500d\u7684\u7ebf\u7a0b\u6b63\u5728\u7b49\u5f85\u5904\u7406\u3002\u6240\u4ee5\uff0c\u5bf9\u4e8e\u5355\u6838\u673a\u5668\u6765\u8bf4\uff0c\u7406\u60f3\u72b6\u6001\u4e0b\uff0cLoad Average<\/span>\u8981\u5c0f\u4e8e1<\/span>\u3002\u540c\u7406\uff0c\u5bf9\u4e8e\u53cc\u6838\u5904\u7406\u5668\u6765\u8bf4\uff0cLoad Average<\/span>\u8981\u5c0f\u4e8e2<\/span>\u3002\u7ed3\u8bba\u662f\uff1a<\/span>\u591a\u6838\u5904\u7406\u5668\u4e2d\uff0c\u4f60\u7684Load Average<\/span>\u4e0d\u5e94\u8be5\u9ad8\u4e8e\u5904\u7406\u5668\u6838\u5fc3\u7684\u603b\u6570\u91cf\u3002<\/span><\/p>\n

\u4e0d\u540c\u6838\u5904\u7406\u5668\u4e4b\u95f4\u7684load<\/span>\u503c\u600e\u6837\u6362\u7b97\uff1f<\/span><\/strong><\/p>\n

\u6027\u80fd\u6d4b\u8bd5\u4e2d\u53ef\u80fd\u9047\u5230\u8fd9\u6837\u7684\u95ee\u9898\uff0c\u4f60\u7684\u7ebf\u4e0a\u673a\u5668\u662f8<\/span>\u6838\u7684\uff0c\u4f46\u662f\u7ebf\u4e0b\u6027\u80fd\u6d4b\u8bd5\u673a\u53ea\u67094<\/span>\u6838\u7684\u4e0e16<\/span>\u6838\u7684\uff0c\u90a3\u4e48\u6211\u752816<\/span>\u6838\u673a\u5668\u6d4b\u8bd5\u5f97\u5230\u7684load<\/span>\u503c\u662f2.6<\/span>\uff0c\u6362\u7b97\u52308<\/span>\u6838\u673a\u5668\u4e0a\u5e94\u8be5\u662f\u591a\u5c11\u5462\uff1f<\/span><\/p>\n

\u5f88\u4e0d\u5e78\uff0c\u6ca1\u6709\u4e00\u4e2a\u51c6\u786e\u7684\u516c\u5f0f\u53ef\u4ee5\u7528\u6765\u6362\u7b97\u3002\u4f46\u662f\u6211\u4eec\u53ef\u4ee5\u6839\u636eload<\/span>\u7684\u542b\u4e49\u6765\u505a\u4e00\u4e2a\u63a8\u65ad\uff0c\u5047\u5982\u6211\u4eec\u5728\u4e00\u4e2a\u53cc\u6838\u7684\u673a\u5668\u4e0a\u6d4b\u8bd5100<\/span>\u4e2a\u7ebf\u7a0b\u5e76\u53d1\u8bbf\u95eeX<\/span>\u9875\u9762\u65f6load<\/span>\u4e3a2<\/span>\uff0c\u90a3\u4e48\u540c\u6837\u7684\u5e76\u53d1\u7ebf\u7a0b\u6570\u8bf7\u6c42\u540c\u6837\u7684\u9875\u9762\uff0c\u5728\u4e00\u53f0\u5355\u6838\u7684\u673a\u5668\u4e0a\u6d4b\u8bd5\uff0cload<\/span>\u4f1a\u662f\u591a\u5c11\u5462\uff1f\u5728\u53cc\u6838\u673a\u5668\u4e0a\uff0c100<\/span>\u7ebf\u7a0b\u540c\u65f6\u8bf7\u6c42\u65f6load<\/span>\u4e3a2<\/span>\uff0c\u8bf4\u660e2<\/span>\u4e2a\u6838\u90fd\u5728\u6ee1\u8d1f\u8377\u8fd0\u4f5c\uff0c\u4e14\u5e73\u5747\u6bcf\u4e00\u4e2a\u6838\u5728\u540c\u65f6\u5904\u740650<\/span>\u4e2a\u7ebf\u7a0b\uff1b\u5982\u679c\u5728\u5355\u6838\u673a\u5668\u4e0a100<\/span>\u4e2a\u7ebf\u7a0b\u540c\u65f6\u8bf7\u6c42\uff0c\u5e76\u4e14\u5047\u8bbe\u6bcf\u4e00\u4e2a\u6838\u8fd8\u662f\u80fd\u540c\u65f6\u5904\u740650<\/span>\u4e2a\u7ebf\u7a0b\uff0c\u90a3\u4e48\u5c31\u4f1a\u670950<\/span>\u4e2a\u7ebf\u7a0b\u5728\u7b49\u5f85\uff0c\u8fd9\u6837\u770b\u8d77\u6765CPU<\/span>\u7684load<\/span>\u8fd8\u662f2<\/span>\uff0c\u4f46\u4e8b\u5b9e\u4e0a\uff0c100<\/span>\u4e2a\u7ebf\u7a0b\u540c\u65f6\u8bf7\u6c42CPU<\/span>\u65f6\uff0c\u5df2\u7ecf\u8d85\u51fa\u4e86\u4e00\u4e2aCPU<\/span>\u53ef\u4ee5\u540c\u65f6\u5904\u7406\u7684\u7ebf\u7a0b\u7684\u80fd\u529b\uff0c\u5fc5\u7136\u4f1a\u51fa\u73b0\u7ebf\u7a0b\u4e4b\u95f4\u7ade\u4e89CPU<\/span>\u8d44\u6e90\u7684\u60c5\u51b5\uff0c\u800c\u7ebf\u7a0b\u5bf9CPU<\/span>\u7684\u201c\u70ed\u7ade\u4e89\u201d\u4f1a\u4f7fCPU<\/span>\u8017\u8d39\u66f4\u591a\u7684\u8d44\u6e90\u53bb\u505a\u7ebf\u7a0b\u8c03\u5ea6\u7684\u4e8b\u60c5\uff0c\u6240\u4ee5\u603b\u4f53\u6548\u679c\u6765\u770b\uff0c\u5355\u6838\u65f6load<\/span>\u503c\u5b9e\u9645\u4f1a\u9ad8\u4e8e2<\/span>\u3002<\/span><\/p>\n

\u4e0a\u9762\u662f\u6211\u81ea\u5df1\u7684\u63a8\u8bba\uff0c\u7f51\u4e0a\u8fd8\u6ca1\u6709\u627e\u5230\u76f8\u5e94\u7684\u8d44\u6599\u9a8c\u8bc1\u3002\u5047\u5982\u8fd9\u79cd\u63a8\u8bba\u662f\u5bf9\u7684\uff0c\u90a3\u4e4816<\/span>\u6838\u673a\u5668\u4e0a\u6d4b\u8bd5\u5f97\u5230\u7684load<\/span>\u4e3a2.6<\/span>\uff0c\u57288<\/span>\u6838\u673a\u5668\u4e0a\u6d4b\u8bd5\u7684\u8bddload<\/span>\u503c\u80af\u5b9a\u9ad8\u4e8e2.6<\/span>\u3002\u7a76\u7adf\u9ad8\u591a\u5c11\u5e94\u8be5\u8ddfCPU<\/span>\u672c\u8eab\u7684\u6027\u80fd\u4e5f\u662f\u6709\u5173\u7684\uff0c\u5177\u4f53\u6211\u8fd8\u4e0d\u6e05\u695a\u8be5\u5982\u4f55\u8bc4\u4f30\u3002\u6709\u5174\u8da3\u7684\u540c\u5b66\u53ef\u4ee5\u4e00\u8d77\u6765\u8ba8\u8bba\u8ba8\u8bba\u54e6\uff01<\/span><\/span><\/p>\n<\/p><\/div>\n

--------------------------------------------------------------------------------------<\/p>\n

 <\/p>\n

1\u3001\u5148\u4f7f\u7528top\u770b\u4e0bCPU\u5360\u7528\u9ad8\u7684\u8fdb\u7a0b\uff0c\u627e\u51fa\u8fdb\u7a0b\u7684\u8fdb\u7a0bID\uff08pid\uff09\uff1b<\/p>\n

\u67e5\u770b\u65b9\u6cd5\uff1atop
\n2\u3001\u6839\u636e\u8fdb\u7a0bID\uff08pid\uff09\u67e5\u770b\u662f\u8fdb\u7a0b\u7684\u90a3\u4e9b\u7ebf\u7a0b\u5360\u7528CPU\u9ad8\u3002
\n \u67e5\u770b\u65b9\u6cd5\uff1atop -Hp pid
\n3\u3001\u4f7f\u7528pstack\uff0c\u67e5\u770bCPU\u5360\u7528\u9ad8\u7684\u7ebf\u7a0b\u5728\u5e72\u4ec0\u4e48\u3002
\n \u67e5\u770b\u65b9\u6cd5\uff1apstack pid
\n4\u3001\u6839\u636epstack\u5206\u6790\uff0c\u5e94\u8be5\u53ef\u4ee5\u770b\u51fa\u95ee\u9898\u6240\u5728<\/p>\n","protected":false},"excerpt":{"rendered":"

\n

CPU<\/span><\/strong>\u5229\u7528\u7387\u4e0eLoad Average<\/span>\u7684\u533a\u522b\uff1f<\/span><\/strong><\/p>\n

CPU<\/span>\u5229\u7528\u7387\uff0c\u662f\u5bf9\u4e00\u4e2a\u65f6\u95f4\u6bb5\u5185CPU<\/span>\u4f7f\u7528\u72b6\u51b5\u7684\u7edf\u8ba1\uff0c\u901a\u8fc7\u8fd9\u4e2a\u6307\u6807\u53ef\u4ee5\u770b\u51fa\u5728\u67d0\u4e00\u4e2a\u65f6\u95f4\u6bb5\u5185CPU<\/span>\u88ab\u5360\u7528\u7684\u60c5\u51b5\uff0c\u5982\u679cCPU<\/span>\u88ab\u5360\u7528\u65f6\u95f4\u5f88\u9ad8\uff0c\u90a3\u4e48\u5c31\u9700\u8981\u8003\u8651CPU<\/span>\u662f\u5426\u5df2\u7ecf\u5904\u4e8e\u8d85\u8d1f\u8377\u8fd0\u4f5c\uff0c\u957f\u671f\u8d85\u8d1f\u8377\u8fd0\u4f5c\u5bf9\u4e8e\u673a\u5668\u672c\u8eab\u6765\u8bf4\u662f\u4e00\u79cd\u635f\u5bb3\uff0c\u56e0\u6b64\u5fc5\u987b\u5c06CPU<\/span>\u7684\u5229\u7528\u7387\u63a7\u5236\u5728\u4e00\u5b9a\u7684\u6bd4\u4f8b\u4e0b\uff0c\u4ee5\u4fdd\u8bc1\u673a\u5668\u7684\u6b63\u5e38\u8fd0\u4f5c\u3002<\/span><\/p>\n

Load Average<\/span>\u662f<\/span>CPU<\/span>\u7684Load<\/span>\uff0c\u5b83\u6240\u5305\u542b\u7684\u4fe1\u606f\u4e0d\u662fCPU<\/span>\u7684\u4f7f\u7528\u7387\u72b6\u51b5\uff0c\u800c\u662f\u5728\u4e00\u6bb5\u65f6\u95f4\u5185CPU<\/span>\u6b63\u5728\u5904\u7406\u4ee5\u53ca\u7b49\u5f85CPU<\/span>\u5904\u7406\u7684\u8fdb\u7a0b\u6570\u4e4b\u548c\u7684\u7edf\u8ba1\u4fe1\u606f\uff0c\u4e5f\u5c31\u662fCPU<\/span>\u4f7f\u7528\u961f\u5217\u7684\u957f\u5ea6\u7684\u7edf\u8ba1\u4fe1\u606f\u3002<\/span><\/p>\n

\u90a3\u4e48CPU<\/span>\u5229\u7528\u7387\u4e0eLoad Average<\/span>\u5bf9\u4e8e\u6027\u80fd\u6d4b\u8bd5\u7684\u610f\u4e49\u6709\u4ec0\u4e48\u533a\u522b\u5462\uff1f\u5b9e...<\/span><\/p>\n<\/div>\n

\u7ee7\u7eed\u9605\u8bfb →<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[287],"tags":[],"class_list":["post-483","post","type-post","status-publish","format-standard","hentry","category-linux"],"_links":{"self":[{"href":"https:\/\/www.xiaobo.li\/notes\/wp-json\/wp\/v2\/posts\/483","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.xiaobo.li\/notes\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.xiaobo.li\/notes\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.xiaobo.li\/notes\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.xiaobo.li\/notes\/wp-json\/wp\/v2\/comments?post=483"}],"version-history":[{"count":0,"href":"https:\/\/www.xiaobo.li\/notes\/wp-json\/wp\/v2\/posts\/483\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.xiaobo.li\/notes\/wp-json\/wp\/v2\/media?parent=483"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.xiaobo.li\/notes\/wp-json\/wp\/v2\/categories?post=483"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.xiaobo.li\/notes\/wp-json\/wp\/v2\/tags?post=483"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}