{"id":894,"date":"2020-05-08T14:07:00","date_gmt":"2020-05-08T06:07:00","guid":{"rendered":"http:\/\/www.langmanezhuang.com\/index.php\/2020\/05\/08\/%e6%93%8d%e4%bd%9c%e7%b3%bb%e7%bb%9f%e6%80%a7%e8%83%bd%e8%a7%82%e6%b5%8b%e5%b7%a5%e5%85%b7\/"},"modified":"2020-05-08T14:07:00","modified_gmt":"2020-05-08T06:07:00","slug":"%e6%93%8d%e4%bd%9c%e7%b3%bb%e7%bb%9f%e6%80%a7%e8%83%bd%e8%a7%82%e6%b5%8b%e5%b7%a5%e5%85%b7","status":"publish","type":"post","link":"http:\/\/blog.langmanezhuang.com\/index.php\/2020\/05\/08\/%e6%93%8d%e4%bd%9c%e7%b3%bb%e7%bb%9f%e6%80%a7%e8%83%bd%e8%a7%82%e6%b5%8b%e5%b7%a5%e5%85%b7\/","title":{"rendered":"\u64cd\u4f5c\u7cfb\u7edf\u6027\u80fd\u89c2\u6d4b\u5de5\u5177"},"content":{"rendered":"

1.\u5de5\u5177\u7c7b\u578b <\/strong><\/p>\n

  \u6027\u80fd\u89c2\u6d4b\u5de5\u5177\u53ef\u4ee5\u6309\u7167\u7cfb\u7edf\u7ea7\u522b\u548c\u8fdb\u7a0b\u7ea7\u522b\u6765\u5206\u7c7b\uff0c\u591a\u6570\u7684\u5de5\u5177\u8981\u4e48\u57fa\u4e8e\u8ba1\u6570\u5668\u8981\u4e48\u57fa\u4e8e\u8ddf\u8e2a\u3002\u6211\u4eec\u628a\u8fd9\u4e9b\u6027\u80fd\u653e\u5728\u5982\u4e0b\u56fe\u4e2d\uff0c\u5305\u62ec\u4e00\u4e9b\u5e38\u89c1\u5de5\u5177\u4f5c\u4e3a\u793a\u4f8b<\/p>\n

\"\"<\/p>\n

  \u6709\u4e00\u4e9b\u5de5\u5177\u4e0d\u6b62\u9002\u5408\u4e00\u4e2a\u8c61\u9650\uff0c\u4f8b\u5982\uff1atop\u8fd8\u6709\u4e00\u4e2a\u7cfb\u7edf\u7ea7\u522b\u7684\u89c6\u56fe\uff0cDtrace\u4e5f\u6709\u8fdb\u7a0b\u7ea7\u522b\u7684\u80fd\u529b\u3002\u8fd8\u6709\u4e00\u4e9b\u6027\u80fd\u5de5\u5177\u662f\u57fa\u4e8e\u5256\u6790\uff08profiling\uff09\u7684\u3002\u5bf9\u7cfb\u7edf\u548c\u8fdb\u7a0b\u505a\u4e00\u7cfb\u5217\u5feb\u7167\uff0c\u4ee5\u6b64\u6765\u8fdb\u884c\u89c2\u6d4b\u3002<\/p>\n

 1.1\u8ba1\u6570\u5668<\/strong><\/p>\n

   \u5185\u6838\u7ef4\u62a4\u4e86\u5404\u79cd\u7edf\u8ba1\u6570\u636e\uff0c\u79f0\u4e3a\u8ba1\u6570\u5668\uff0c\u7528\u4e8e\u5bf9\u4e8b\u4ef6\u8ba1\u6570\u3002\u901a\u5e38\u8ba1\u6570\u5668\u5b9e\u73b0\u4e3a\u65e0\u7b26\u53f7\u7684\u6574\u578b\u6570\uff0c\u53d1\u751f\u4e8b\u4ef6\u65f6\u9012\u589e\u3002\u8ba1\u6570\u5668\u7684\u4f7f\u7528\u53ef\u4ee5\u8ba4\u4e3a\u662f“\u96f6\u5f00\u9500”\u7684\uff0c\u56e0\u4e3a\u5b83\u4eec\u9ed8\u8ba4\u662f\u5f00\u542f\u7684\uff0c\u800c\u4e14\u59cb\u7ec8\u7531\u5185\u6838\u7ef4\u62a4\u3002<\/p>\n

\u552f\u4e00\u7684\u4f7f\u7528\u5f00\u9500\u662f\u4ece\u7528\u6237\u7a7a\u95f4\u8bfb\u53d6\u5b83\u4eec\u7684\u65f6\u5019\uff08\u53ef\u4ee5\u5ffd\u7565\u4e0d\u8ba1\uff09\u3002<\/p>\n

\u7cfb\u7edf\u7ea7\u522b<\/span><\/p>\n

\u4e0b\u9762\u8fd9\u4e9b\u5de5\u5177\u5229\u7528\u5185\u6838\u7684\u8ba1\u6570\u5668\u5728\u7cfb\u7edf\u8f6f\u786c\u4ef6\u7684\u73af\u5883\u4e2d\u68c0\u67e5\u7cfb\u7edf\u7ea7\u522b\u7684\u6d3b\u52a8\u3002<\/p>\n

 vmstat:\u865a\u62df\u5185\u5b58\u548c\u7269\u7406\u5185\u5b58\u7684\u7edf\u8ba1\uff0c\u7cfb\u7edf\u7ea7\u522b\u3002<\/p>\n

mpstat:\u6bcf\u4e2aCPU\u7684\u4f7f\u7528\u60c5\u51b5\u3002<\/p>\n

iostat:\u6bcf\u4e2aI\/O\u7684\u4f7f\u7528\u60c5\u51b5\uff0c\u7531\u5757\u8bbe\u5907\u63a5\u53e3\u62a5\u544a\u3002<\/p>\n

netstat:\u7f51\u7edc\u63a5\u53e3\u7684\u7edf\u8ba1\uff0cTCP\/IP\u6808\u7684\u7edf\u8ba1\uff0c\u4ee5\u53ca\u6bcf\u4e2a\u8fde\u63a5\u7684\u4e00\u4e9b\u7edf\u8ba1\u4fe1\u606f\u3002<\/p>\n

sar:\u5404\u79cd\u5404\u6837\u7684\u7edf\u8ba1\uff0c\u80fd\u5f52\u6863\u5386\u53f2\u6570\u636e\u3002<\/p>\n

\u8fd9\u4e9b\u5de5\u5177\u901a\u5e38\u662f\u7cfb\u7edf\u5168\u4f53\u7528\u6237\u53ef\u89c1\u7684(\u975eroot\u7528\u6237)\u3002\u7edf\u8ba1\u51fa\u7684\u6570\u636e\u4e5f\u5e38\u5e38\u88ab\u76d1\u63a7\u8f6f\u4ef6\u7528\u6765\u7ed8\u56fe\u3002<\/p>\n

\u8fdb\u7a0b\u7ea7\u522b<\/span><\/p>\n

\u4e0b\u9762\u8fd9\u4e9b\u5de5\u5177\u4ee5\u8fdb\u7a0b\u4e3a\u5bfc\u5411\u7684\uff0c\u4f7f\u7528\u7684\u662f\u5185\u6838\u4e3a\u6bcf\u4e2a\u8fdb\u7a0b\u7ef4\u62a4\u7684\u8ba1\u6570\u5668\u3002<\/p>\n

ps:\u8fdb\u7a0b\u72b6\u6001\uff0c\u663e\u793a\u8fdb\u7a0b\u7684\u5404\u79cd\u7edf\u8ba1\u4fe1\u606f\uff0c\u5305\u62ec\u5185\u5b58\u548ccpu\u7684\u4f7f\u7528\u3002<\/p>\n

top:\u6309\u4e00\u4e2a\u7edf\u8ba1\u6570\u636e\uff08\u5982CPU\u4f7f\u7528\uff09\u6392\u5e8f\uff0c\u663e\u793a\u6392\u540d\u9ad8\u7684\u8fdb\u7a0b\uff0c\u57fa\u4e8eSolaris\u7684\u7cfb\u7edf\u5bf9\u5e94\u7684\u5de5\u5177\u662fprstat(1M)<\/p>\n

pmap:\u5c06\u8fdb\u7a0b\u7684\u5185\u5b58\u6bb5\u548c\u4f7f\u7528\u7edf\u8ba1\u4e00\u8d77\u5217\u51fa\u3002<\/p>\n

\u4e00\u822c\u6765\u8bf4\uff0c\u4e0a\u8ff0\u7684\u8fd9\u4e9b\u5de5\u5177\u662f\u4ece\/proc\u6587\u4ef6\u7cfb\u7edf\u91cc\u8bfb\u53d6\u7edf\u8ba1\u7684\u4fe1\u606f\u7684\u3002<\/p>\n

1.2 \u8ddf\u8e2a<\/strong><\/p>\n

       \u8ddf\u8e2a\u6536\u96c6\u6bcf\u4e00\u4e2a\u4e8b\u4ef6\u7684\u6570\u636e\u4ee5\u4f9b\u5206\u6790\u3002\u8ddf\u8e2a\u6846\u67b6\u4e00\u822c\u9ed8\u8ba4\u662f\u4e0d\u542f\u7528\u7684\uff0c\u56e0\u4e3a\u8ddf\u8e2a\u6355\u83b7\u6570\u636e\u4f1a\u6709CPU\u7684\u5f00\u9500\uff0c\u53e6\u5916\u8fd8\u9700\u8981\u4e0d\u5c0f\u7684\u5b58\u50a8\u7a7a\u95f4\u6765\u5b58\u653e\u6570\u636e\u3002<\/p>\n

\u8fd9\u4e9b\u5f00\u9500\u4f1a\u62d6\u6162\u6240\u8ddf\u8e2a\u7684\u5bf9\u8c61\uff0c\u5728\u89e3\u91ca\u6d4b\u91cf\u65f6\u95f4\u7684\u65f6\u5019\u9700\u8981\u52a0\u4ee5\u8003\u8651\u3002<\/p>\n

     \u65e5\u5fd7\uff0c\u5305\u62ec\u7cfb\u7edf\u65e5\u5fd7\uff0c\u53ef\u4ee5\u8ba4\u4e3a\u662f\u4e00\u79cd\u9ed8\u8ba4\u5f00\u542f\u7684\u4f4e\u9891\u7387\u7684\u8ddf\u8e2a\u3002\u65e5\u5fd7\u5305\u62ec\u6bcf\u4e00\u4e2a\u4e8b\u4ef6\u7684\u6570\u636e\uff0c\u867d\u7136\u901a\u5e38\u53ea\u9488\u5bf9\u5076\u53d1\u4e8b\u4ef6\uff0c\u5982\u9519\u8bef\u548c\u8b66\u544a\u3002<\/p>\n

\u7cfb\u7edf\u7ea7\u522b<\/span><\/p>\n

\u5229\u7528\u5185\u6838\u529f\u7684\u8ddf\u8e2a\u8bbe\u65bd\uff0c\u4e0b\u9762\u8fd9\u4e9b\u8ddf\u8e2a\u5de5\u5177\u5728\u7cfb\u7edf\u8f6f\u786c\u4ef6\u7684\u73af\u5883\u4e2d\u68c0\u67e5\u7cfb\u7edf\u7ea7\u522b\u7684\u6d3b\u52a8\u3002<\/p>\n

   tcpdump:\u7f51\u7edc\u5305\u8ddf\u8e2a\uff08\u7528libpcap\u5e93\uff09<\/p>\n

   snoop:\u4e3a\u57fa\u4e8eSolaris\u7684\u7cfb\u7edf\u6253\u9020\u7684\u7f51\u7edc\u5305\u8ddf\u8e2a\u5de5\u5177\u3002<\/p>\n

   blktrace:\u5757I\/O\u8ddf\u8e2a\uff08Linux\uff09<\/p>\n

   iosnoop:\u5757I\/O\u8ddf\u8e2a\uff08\u57fa\u4e8eDtrace\uff09<\/p>\n

   execsnoop:\u8ddf\u8e2a\u65b0\u8fdb\u7a0b\uff08\u57fa\u4e8eDtrace\uff09<\/p>\n

   dtruss:\u7cfb\u7edf\u7ea7\u522b\u7684\u7cfb\u7edf\u8c03\u7528\u7f13\u51b2\u8ddf\u8e2a\uff08\u57fa\u4e8eDtrace\uff09<\/p>\n

   Dtrace:\u8ddf\u8e2a\u5185\u6838\u7684\u5185\u90e8\u6d3b\u52a8\u548c\u6240\u6709\u8d44\u6e90\u7684\u4f7f\u7528\u60c5\u51b5\uff08\u4e0d\u4ec5\u4ec5\u662f\u7f51\u7edc\u548c\u5757I\/O\uff09,\u652f\u6301\u9759\u6001\u548c\u52a8\u6001\u7684\u8ddf\u8e2a\u3002<\/p>\n

   SystemTap:\u8ddf\u8e2a\u5185\u6838\u7684\u5185\u90e8\u6d3b\u52a8\u548c\u6240\u6709\u8d44\u6e90\u7684\u4f7f\u7528\u60c5\u51b5\uff0c\u652f\u6301\u9759\u6001\u548c\u52a8\u6001\u7684\u8ddf\u8e2a\u3002<\/p>\n

   perf:Linux\u6027\u80fd\u4e8b\u4ef6\uff0c\u8ddf\u8e2a\u9759\u6001\u548c\u52a8\u6001\u7684\u63a2\u9488\u3002<\/p>\n

Dtrace\u548cSystemTap\u90fd\u662f\u53ef\u7f16\u7a0b\u73af\u5883\uff0c\u5728\u5b83\u4eec\u4e4b\u4e0a\u53ef\u4ee5\u6784\u5efa\u7cfb\u7edf\u7ea7\u522b\u7684\u8ddf\u8e2a\u5de5\u5177<\/p>\n

\u8fdb\u7a0b\u7ea7\u522b<\/span><\/p>\n

 \u4ee5\u8fdb\u7a0b\u4e3a\u5bfc\u5411\u7684\uff0c\u57fa\u4e8e\u7684\u662f\u64cd\u4f5c\u7cfb\u7edf\u63d0\u4f9b\u7684\u6846\u67b6\u3002<\/p>\n

  strace:\u57fa\u4e8eLinux\u7cfb\u7edf\u7684\u7cfb\u7edf\u8c03\u7528\u8ddf\u8e2a\u3002<\/p>\n

  truss:\u57fa\u4e8eSolaris\u7cfb\u7edf\u7684\u7cfb\u7edf\u8c03\u7528\u8ddf\u8e2a\u3002<\/p>\n

  gdb:\u6e90\u4ee3\u7801\u7ea7\u522b\u7684\u8c03\u8bd5\u5668\uff0c\u5e7f\u6cdb\u5e94\u7528\u4e8eLinux\u7cfb\u7edf\u3002<\/p>\n

  mdb:Solaris\u7cfb\u7edf\u7684\u4e00\u4e2a\u5177\u6709\u53ef\u6269\u5c55\u6027\u7684\u8c03\u8bd5\u5668\u3002<\/p>\n

\u8c03\u8bd5\u5668\u80fd\u591f\u68c0\u67e5\u6bcf\u4e00\u4e2a\u4e8b\u4ef6\u7684\u6570\u636e\uff0c\u4e0d\u8fc7\u505a\u8fd9\u4ef6\u4e8b\u60c5\u65f6\u9700\u8981\u505c\u6b62\u76ee\u6807\u7a0b\u5e8f\u7684\u6267\u884c\uff0c\u7136\u540e\u518d\u542f\u52a8\u3002<\/p>\n

\u8bf8\u5982\uff1aDtrace\u3001SystemTap\u548cperf\u8fd9\u6837\u7684\u5de5\u5177\uff0c\u867d\u7136\u66f4\u9002\u5408\u5f52\u7eb3\u5230\u7cfb\u7edf\u7ea7\u522b\u4e00\u7c7b\u4e2d\uff0c\u4f46\u662f\u4ed6\u4eec\u90fd\u652f\u6301\u5bf9\u5355\u4e2a\u8fdb\u7a0b\u505a\u68c0\u67e5\u3002<\/p>\n

1.3 \u5256\u6790<\/strong><\/p>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

1.\u5de5\u5177\u7c7b\u578b    \u6027\u80fd\u89c2\u6d4b\u5de5\u5177\u53ef\u4ee5\u6309\u7167\u7cfb\u7edf\u7ea7\u522b\u548c\u8fdb\u7a0b\u7ea7\u522b\u6765\u5206\u7c7b\uff0c\u591a\u6570\u7684\u5de5\u5177\u8981\u4e48\u57fa\u4e8e\u8ba1\u6570\u5668 … \u7ee7\u7eed\u9605\u8bfb \u64cd\u4f5c\u7cfb\u7edf\u6027\u80fd\u89c2\u6d4b\u5de5\u5177<\/span> →<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[1],"tags":[],"_links":{"self":[{"href":"http:\/\/blog.langmanezhuang.com\/index.php\/wp-json\/wp\/v2\/posts\/894"}],"collection":[{"href":"http:\/\/blog.langmanezhuang.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/blog.langmanezhuang.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/blog.langmanezhuang.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/blog.langmanezhuang.com\/index.php\/wp-json\/wp\/v2\/comments?post=894"}],"version-history":[{"count":0,"href":"http:\/\/blog.langmanezhuang.com\/index.php\/wp-json\/wp\/v2\/posts\/894\/revisions"}],"wp:attachment":[{"href":"http:\/\/blog.langmanezhuang.com\/index.php\/wp-json\/wp\/v2\/media?parent=894"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/blog.langmanezhuang.com\/index.php\/wp-json\/wp\/v2\/categories?post=894"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/blog.langmanezhuang.com\/index.php\/wp-json\/wp\/v2\/tags?post=894"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}