{"id":133730,"date":"2021-10-20T01:57:35","date_gmt":"2021-10-19T17:57:35","guid":{"rendered":"http:\/\/www.idc.net\/help\/133730\/"},"modified":"2021-10-20T01:57:35","modified_gmt":"2021-10-19T17:57:35","slug":"linux%e7%ad%89%e5%be%85%e4%ba%8b%e4%bb%b6%e7%9a%84%e5%8e%9f%e7%90%86%e5%92%8c%e5%ba%94%e7%94%a8-linuxwaitevent","status":"publish","type":"post","link":"https:\/\/idc.net\/help\/133730\/","title":{"rendered":"Linux\u7b49\u5f85\u4e8b\u4ef6\u7684\u539f\u7406\u548c\u5e94\u7528 (linuxwaitevent)"},"content":{"rendered":"<p>Linux\u64cd\u4f5c\u7cfb\u7edf\u5728\u5b9e\u65f6\u64cd\u4f5c\u7cfb\u7edf\u9886\u57df\u4e2d\u6709\u7740\u5e7f\u6cdb\u7684\u5e94\u7528\uff0c\u800cLinux\u7b49\u5f85\u4e8b\u4ef6\u5219\u662fLinux\u64cd\u4f5c\u7cfb\u7edf\u5b9e\u73b0\u5b9e\u65f6\u54cd\u5e94\u7684\u5173\u952e\u4e4b\u4e00\u3002<\/p>\n<p>\u4e00\u3001Linux\u7b49\u5f85\u4e8b\u4ef6\u7684\u539f\u7406<\/p>\n<p>1.\u7b49\u5f85\u961f\u5217<\/p>\n<p>Linux\u7b49\u5f85\u4e8b\u4ef6\u7684\u5b9e\u73b0\u57fa\u4e8e\u7b49\u5f85\u961f\u5217\u7684\u673a\u5236\uff0c\u7b49\u5f85\u961f\u5217\u662f\u4e00\u79cd\u6570\u636e\u7ed3\u6784\uff0c\u7528\u4e8e\u5728\u8fdb\u7a0b\u6216\u8005\u7ebf\u7a0b\u4e4b\u95f4\u5b9e\u73b0\u7b49\u5f85\u548c\u5524\u9192\u7684\u64cd\u4f5c\u3002\u7b49\u5f85\u961f\u5217\u662f\u7531\u5185\u6838\u63d0\u4f9b\u7684\u6570\u636e\u7ed3\u6784\uff0c\u5f00\u53d1\u8005\u53ef\u4ee5\u4f7f\u7528\u5b83\u6765\u5b9e\u73b0\u7b49\u5f85\u548c\u5524\u9192\u7684\u529f\u80fd\u3002<\/p>\n<p>\u7b49\u5f85\u961f\u5217\u662f\u7531\u4e00\u4e2a\u6307\u9488\u5217\u8868\u7ec4\u6210\u7684\u7ed3\u6784\uff0c\u6bcf\u4e2a\u6307\u9488\u6307\u5411\u4e00\u4e2a\u7b49\u5f85\u4e8b\u4ef6\u7684\u8fdb\u7a0b\u6216\u7ebf\u7a0b\u3002\u7b49\u5f85\u961f\u5217\u4e5f\u6709\u4e00\u4e2a\u6307\u9488\uff0c\u6307\u5411\u961f\u5217\u4e2d\u7684\u4e4b\u4e00\u4e2a\u7b49\u5f85\u4e8b\u4ef6\u3002<\/p>\n<p>2.\u7b49\u5f85\u4e8b\u4ef6<\/p>\n<p>\u7b49\u5f85\u4e8b\u4ef6\u662f\u5728\u64cd\u4f5c\u7cfb\u7edf\u4e2d\u9700\u8981\u7b49\u5f85\u7684\u4e8b\u4ef6\uff0c\u5982\u7b49\u5f85\u78c1\u76d8IO\u5b8c\u6210\u3001\u7b49\u5f85\u7f51\u7edc\u8fde\u63a5\u3001\u7b49\u5f85\u5b9a\u65f6\u5668\u5230\u671f\u7b49\u3002\u5f53\u67d0\u4e2a\u8fdb\u7a0b\u9700\u8981\u7b49\u5f85\u67d0\u4e2a\u4e8b\u4ef6\u65f6\uff0c\u5b83\u5c06\u8bf7\u6c42\u8ba9\u51faCPU\uff0c\u5e76\u5c06\u81ea\u5df1\u52a0\u5165\u5230\u76f8\u5e94\u7684\u7b49\u5f85\u961f\u5217\u4e2d\u3002<\/p>\n<p>\u7b49\u5f85\u4e8b\u4ef6\u7684\u72b6\u6001\u901a\u5e38\u662f\u4e00\u4e2a\u6574\u6570\uff0c\u6bd4\u5982\u7b49\u5f85\u78c1\u76d8IO\u5b8c\u6210\u7684\u4e8b\u4ef6\u72b6\u6001\u5c31\u662f\u201c2\u201d\u3002\u5f53\u4e8b\u4ef6\u5b8c\u6210\u65f6\uff0c\u5185\u6838\u4f1a\u904d\u5386\u7b49\u5f85\u961f\u5217\uff0c\u5c06\u7b49\u5f85\u8be5\u4e8b\u4ef6\u7684\u6240\u6709\u8fdb\u7a0b\u6216\u7ebf\u7a0b\u5524\u9192\uff0c\u8fdb\u7a0b\u6216\u7ebf\u7a0b\u88ab\u5524\u9192\u540e\u4f1a\u91cd\u65b0\u8fd0\u884c\u3002<\/p>\n<p>\u5728\u7b49\u5f85\u4e8b\u4ef6\u7684\u8fc7\u7a0b\u4e2d\uff0c\u8fdb\u7a0b\u6216\u7ebf\u7a0b\u4f1a\u963b\u585e\uff0c\u7b49\u5f85\u67d0\u4e2a\u6761\u4ef6\u6ee1\u8db3\u540e\u518d\u88ab\u5524\u9192\u3002\u7b49\u5f85\u4e8b\u4ef6\u65f6\u7684\u7ebf\u7a0b\u88ab\u52a0\u5165\u5230\u7b49\u5f85\u961f\u5217\u4e2d\uff0c\u5e76\u5728\u7b49\u5f85\u961f\u5217\u4e2d\u4f11\u7720\uff0c\u8fd9\u6837\u5c31\u8282\u7ea6\u4e86CPU\u8d44\u6e90\u3002<\/p>\n<p>3.\u4fe1\u53f7\u91cf<\/p>\n<p>\u7b49\u5f85\u4e8b\u4ef6\u7684\u5b9e\u73b0\u8fd8\u9700\u8981\u501f\u52a9\u4fe1\u53f7\u91cf\uff0c\u4fe1\u53f7\u91cf\u662fLinux\u5185\u6838\u63d0\u4f9b\u7684\u4e00\u79cd\u8fdb\u7a0b\u540c\u6b65\u673a\u5236\u3002<\/p>\n<p>\u5f53\u4e00\u4e2a\u8fdb\u7a0b\u7b49\u5f85\u67d0\u4e2a\u4e8b\u4ef6\u65f6\uff0c\u5b83\u4f1a\u5c06\u81ea\u5df1\u52a0\u5165\u5230\u7b49\u5f85\u961f\u5217\u4e2d\uff0c\u5e76\u5c06\u76f8\u5e94\u7684\u4fe1\u53f7\u91cf\u51cf1\u3002\u5f53\u4e8b\u4ef6\u5b8c\u6210\u65f6\uff0c\u5185\u6838\u4f1a\u904d\u5386\u7b49\u5f85\u961f\u5217\uff0c\u5e76\u5c06\u7b49\u5f85\u8be5\u4e8b\u4ef6\u7684\u6240\u6709\u8fdb\u7a0b\u6216\u7ebf\u7a0b\u5524\u9192\uff0c\u8fd9\u4e9b\u8fdb\u7a0b\u6216\u7ebf\u7a0b\u4f1a\u5c06\u76f8\u5e94\u7684\u4fe1\u53f7\u91cf\u52a01\uff0c\u4f7f\u5f97\u4fe1\u53f7\u91cf\u7684\u503c\u56de\u5230\u521d\u59cb\u72b6\u6001\u3002<\/p>\n<p>\u901a\u8fc7\u7b49\u5f85\u4e8b\u4ef6\u548c\u4fe1\u53f7\u91cf\uff0cLinux\u5185\u6838\u5b9e\u73b0\u4e86\u8fdb\u7a0b\u4e4b\u95f4\u7684\u540c\u6b65\u548c\u901a\u4fe1\uff0c\u8fdb\u800c\u5b9e\u73b0\u4e86\u5b9e\u65f6\u54cd\u5e94\u548c\u5b9e\u65f6\u63a7\u5236\u3002<\/p>\n<p>\u4e8c\u3001Linux\u7b49\u5f85\u4e8b\u4ef6\u7684\u5e94\u7528<\/p>\n<p>1.\u8fdb\u7a0b\u540c\u6b65<\/p>\n<p>Linux\u7b49\u5f85\u4e8b\u4ef6\u53ef\u4ee5\u7528\u4e8e\u8fdb\u7a0b\u540c\u6b65\uff0c\u5f53\u591a\u4e2a\u8fdb\u7a0b\u9700\u8981\u540c\u65f6\u8bbf\u95ee\u67d0\u4e2a\u5171\u4eab\u8d44\u6e90\u65f6\uff0c\u53ef\u4ee5\u4f7f\u7528\u7b49\u5f85\u4e8b\u4ef6\u673a\u5236\u907f\u514d\u591a\u4e2a\u8fdb\u7a0b\u540c\u65f6\u8bbf\u95ee\u8be5\u8d44\u6e90\u7684\u95ee\u9898\u3002\u4f8b\u5982\uff0c\u5f53\u591a\u4e2a\u8fdb\u7a0b\u9700\u8981\u540c\u65f6\u8bfb\u53d6\u4e00\u4e2a\u6587\u4ef6\u65f6\uff0c\u53ef\u4ee5\u4f7f\u7528\u7b49\u5f85\u4e8b\u4ef6\u673a\u5236\u6765\u907f\u514d\u591a\u4e2a\u8fdb\u7a0b\u540c\u65f6\u5199\u8be5\u6587\u4ef6\u7684\u95ee\u9898\u3002<\/p>\n<p>2.\u7f51\u7edc\u901a\u4fe1<\/p>\n<p>\u5728\u7f51\u7edc\u901a\u4fe1\u4e2d\uff0c\u7b49\u5f85\u4e8b\u4ef6\u673a\u5236\u4e5f\u88ab\u5e7f\u6cdb\u5e94\u7528\u3002\u5f53\u4e00\u4e2a\u8fdb\u7a0b\u9700\u8981\u7b49\u5f85\u7f51\u7edc\u8fde\u63a5\u65f6\uff0c\u53ef\u4ee5\u4f7f\u7528\u7b49\u5f85\u4e8b\u4ef6\u673a\u5236\u6765\u5b9e\u73b0\u7b49\u5f85\u64cd\u4f5c\u3002\u5f53\u7f51\u7edc\u8fde\u63a5\u5efa\u7acb\u540e\uff0c\u8be5\u8fdb\u7a0b\u4f1a\u88ab\u5524\u9192\u5e76\u5f00\u59cb\u6267\u884c\u7f51\u7edc\u901a\u4fe1\u3002<\/p>\n<p>3.\u591a\u7ebf\u7a0b<\/p>\n<p>\u5728\u591a\u7ebf\u7a0b\u73af\u5883\u4e2d\uff0c\u7b49\u5f85\u4e8b\u4ef6\u673a\u5236\u4e5f\u7ecf\u5e38\u88ab\u4f7f\u7528\u3002\u5f53\u591a\u4e2a\u7ebf\u7a0b\u9700\u8981\u8bbf\u95ee\u5171\u4eab\u8d44\u6e90\u65f6\uff0c\u53ef\u4ee5\u4f7f\u7528\u7b49\u5f85\u4e8b\u4ef6\u673a\u5236\u6765\u907f\u514d\u591a\u4e2a\u7ebf\u7a0b\u540c\u65f6\u8bbf\u95ee\u8be5\u8d44\u6e90\u7684\u95ee\u9898\u3002<\/p>\n<p>Linux\u7b49\u5f85\u4e8b\u4ef6\u662fLinux\u64cd\u4f5c\u7cfb\u7edf\u5b9e\u73b0\u5b9e\u65f6\u54cd\u5e94\u7684\u5173\u952e\u4e4b\u4e00\uff0c\u5b83\u91c7\u7528\u4e86\u7b49\u5f85\u961f\u5217\u548c\u4fe1\u53f7\u91cf\u673a\u5236\u6765\u5b9e\u73b0\u8fdb\u7a0b\u4e4b\u95f4\u7684\u540c\u6b65\u548c\u901a\u4fe1\u3002Linux\u7b49\u5f85\u4e8b\u4ef6\u88ab\u5e7f\u6cdb\u5e94\u7528\u4e8e\u8fdb\u7a0b\u540c\u6b65\u3001\u7f51\u7edc\u901a\u4fe1\u548c\u591a\u7ebf\u7a0b\u7b49\u65b9\u9762\u3002\u5728\u5b9e\u65f6\u64cd\u4f5c\u7cfb\u7edf\u9886\u57df\u4e2d\uff0cLinux\u7b49\u5f85\u4e8b\u4ef6\u6709\u7740\u5e7f\u6cdb\u7684\u5e94\u7528\u3002<\/p>\n<p><strong>\u76f8\u5173\u95ee\u9898\u62d3\u5c55\u9605\u8bfb\uff1a<\/strong><\/p>\n<ul>\n<li>Linux\u4e2dwait\u5982\u4f55\u8bc6\u522bfor\u5faa\u73af\u4f53\u5185\u7684\u8ba1\u7b97\u8fc7\u7a0b\u7ed3\u675f<\/li>\n<\/ul>\n<h3>Linux\u4e2dwait\u5982\u4f55\u8bc6\u522bfor\u5faa\u73af\u4f53\u5185\u7684\u8ba1\u7b97\u8fc7\u7a0b\u7ed3\u675f<\/h3>\n<p>\u53ef\u4ee5\u5199\u4e00\u4e2a\u51fd\u6570\uff0c\u68c0\u67e5\u4f60\u81ea\u5df1\u7684\u8fdb\u7a0b\u662f\u5426\u8fd0\u884c\u5b8c\u6210\uff0c\u5b8c\u6210\u5c18\u7b80\u540e\u518d\u5411\u4e0b\u6267\u884c<\/p>\n<p>precise_waiting()<\/p>\n<p>{<\/p>\n<p> $1<\/p>\n<p> while ps -ef | grep $1 | grep -v \u2018grep\u2019; do<\/p>\n<p>sleep 1<\/p>\n<p>continue<\/p>\n<p> done<\/p>\n<p>}<\/p>\n<p>\u4f7f\u7528\u6b64\u57f9\u65b9\u6cd5\uff1a<\/p>\n<p>#!\/bin\/\u6d3e\u6252\u88e4sh<\/p>\n<p>command 1<\/p>\n<p>precise_waiting command 2<\/p>\n<p>command 3<\/p>\n<p>linuxwaitevent\u7684\u4ecb\u7ecd\u5c31\u804a\u5230\u8fd9\u91cc\u5427\uff0c\u611f\u8c22\u4f60\u82b1\u65f6\u95f4\u9605\u8bfb\u672c\u7ad9\u5185\u5bb9\uff0c\u66f4\u591a\u5173\u4e8elinuxwaitevent,Linux\u7b49\u5f85\u4e8b\u4ef6\u7684\u539f\u7406\u548c\u5e94\u7528,Linux\u4e2dwait\u5982\u4f55\u8bc6\u522bfor\u5faa\u73af\u4f53\u5185\u7684\u8ba1\u7b97\u8fc7\u7a0b\u7ed3\u675f\u7684\u4fe1\u606f\u522b\u5fd8\u4e86\u5728\u672c\u7ad9\u8fdb\u884c\u67e5\u627e\u5594\u3002<\/p>\n<p><a href=\"http:https:\/\/idc.net\/\">\u9999\u6e2f\u670d\u52a1\u5668<\/a>\u9996\u9009\u540e\u6d6a\u4e91\uff0c2H2G\u9996\u670810\u5143\u5f00\u901a\u3002<br \/>\u540e\u6d6a\u4e91\uff08www.IDC.Net\uff09\u63d0\u4f9b\u7b80\u5355\u597d\u7528\uff0c\u4ef7\u683c\u539a\u9053\u7684\u9999\u6e2f\/\u7f8e\u56fd\u4e91\u670d\u52a1\u5668\u548c\u72ec\u7acb\u670d\u52a1\u5668\u3002IDC+ISP+ICP\u8d44\u8d28\u3002ARIN\u548cAPNIC\u4f1a\u5458\u3002\u6210\u719f\u6280\u672f\u56e2\u961f15\u5e74\u884c\u4e1a\u7ecf\u9a8c\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Linux\u64cd\u4f5c\u7cfb\u7edf\u5728\u5b9e\u65f6\u64cd\u4f5c\u7cfb\u7edf\u9886\u57df\u4e2d\u6709\u7740\u5e7f\u6cdb\u7684\u5e94\u7528\uff0c\u800cLinux\u7b49\u5f85\u4e8b\u4ef6\u5219\u662fLinux\u64cd\u4f5c\u7cfb\u7edf\u5b9e\u73b0\u5b9e\u65f6\u54cd\u5e94\u7684 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[34],"tags":[],"class_list":["post-133730","post","type-post","status-publish","format-standard","hentry","category-linux"],"_links":{"self":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts\/133730","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/comments?post=133730"}],"version-history":[{"count":0,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts\/133730\/revisions"}],"wp:attachment":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/media?parent=133730"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/categories?post=133730"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/tags?post=133730"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}