{"id":398,"date":"2015-02-07T18:44:11","date_gmt":"2015-02-07T10:44:11","guid":{"rendered":"http:\/\/www.ipcpu.com\/?p=398"},"modified":"2015-02-07T18:44:11","modified_gmt":"2015-02-07T10:44:11","slug":"vmstat-linux-2","status":"publish","type":"post","link":"https:\/\/c.ipcpu.com\/2015\/02\/vmstat-linux-2\/","title":{"rendered":"Linux\u7cfb\u7edf\u76d1\u63a7\u5de5\u5177\u4e4bvmstat\u8be6\u89e3"},"content":{"rendered":"

vmstat\u662f\u4e00\u4e2a\u67e5\u770b\u865a\u62df\u5185\u5b58\uff08Virtual Memory\uff09\u4f7f\u7528\u72b6\u51b5\u7684\u5de5\u5177\uff0c\u4f7f\u7528vmstat\u547d\u4ee4\u53ef\u4ee5\u5f97\u5230\u5173\u4e8e\u8fdb\u7a0b\u3001\u5185\u5b58\u3001\u5185\u5b58\u5206\u9875\u3001\u5835\u585eIO\u3001traps\u53caCPU\u6d3b\u52a8\u7684\u4fe1\u606f\u3002<\/p>\n

vmstat\u662f\u4e00\u4e2a\u5341\u5206\u6709\u7528\u7684Linux\u7cfb\u7edf\u76d1\u63a7\u5de5\u5177\uff0c\u662fprocps\u7ec4\u4ef6\u7684\u4e00\u90e8\u5206\u3002<\/p>\n

\u4e00\u3001\u524d\u8a00<\/h3>\n

\u5f88\u663e\u7136\u4ece\u540d\u5b57\u4e2d\u6211\u4eec\u5c31\u53ef\u4ee5\u77e5\u9053vmstat\u662f\u4e00\u4e2a\u67e5\u770b\u865a\u62df\u5185\u5b58\uff08Virtual Memory\uff09\u4f7f\u7528\u72b6\u51b5\u7684\u5de5\u5177\uff0c\u4f46\u662f\u600e\u6837\u901a\u8fc7vmstat\u6765\u53d1\u73b0\u7cfb\u7edf\u4e2d\u7684\u74f6\u9888\u5462\uff1f\u5728\u56de\u7b54\u8fd9\u4e2a\u95ee\u9898\u524d\uff0c\u8fd8\u662f\u8ba9\u6211\u4eec\u56de\u987e\u4e00\u4e0bLinux\u4e2d\u5173\u4e8e\u865a\u62df\u5185\u5b58\u76f8\u5173\u5185\u5bb9\u3002<\/p>\n

\u865a\u62df\u5185\u5b58\u8fd0\u884c\u539f\u7406<\/h4>\n

\u5728\u7cfb\u7edf\u4e2d\u8fd0\u884c\u7684\u6bcf\u4e2a\u8fdb\u7a0b\u90fd\u9700\u8981\u4f7f\u7528\u5230\u5185\u5b58\uff0c\u4f46\u4e0d\u662f\u6bcf\u4e2a\u8fdb\u7a0b\u90fd\u9700\u8981\u6bcf\u65f6\u6bcf\u523b\u4f7f\u7528\u7cfb\u7edf\u5206\u914d\u7684\u5185\u5b58\u7a7a\u95f4\u3002\u5f53\u7cfb\u7edf\u8fd0\u884c\u6240\u9700\u5185\u5b58\u8d85\u8fc7\u5b9e\u9645\u7684\u7269\u7406\u5185\u5b58\uff0c\u5185\u6838\u4f1a\u91ca \u653e\u67d0\u4e9b\u8fdb\u7a0b\u6240\u5360\u7528\u4f46\u672a\u4f7f\u7528\u7684\u90e8\u5206\u6216\u6240\u6709\u7269\u7406\u5185\u5b58\uff0c\u5c06\u8fd9\u90e8\u5206\u8d44\u6599\u5b58\u50a8\u5728\u78c1\u76d8\u4e0a\u76f4\u5230\u8fdb\u7a0b\u4e0b\u4e00\u6b21\u8c03\u7528\uff0c\u5e76\u5c06\u91ca\u653e\u51fa\u7684\u5185\u5b58\u63d0\u4f9b\u7ed9\u6709\u9700\u8981\u7684\u8fdb\u7a0b\u4f7f\u7528\u3002
\u5728Linux\u5185\u5b58\u7ba1\u7406\u4e2d\uff0c\u4e3b\u8981\u662f\u901a\u8fc7\u201c\u8c03\u9875Paging\u201d\u548c\u201c\u4ea4\u6362Swapping\u201d\u6765\u5b8c\u6210\u4e0a\u8ff0\u7684\u5185\u5b58\u8c03\u5ea6\u3002
\u8c03\u9875\u7b97\u6cd5\u662f\u5c06\u5185\u5b58\u4e2d\u6700\u8fd1\u4e0d\u5e38\u4f7f\u7528\u7684\u9875\u9762\u6362\u5230\u78c1\u76d8\u4e0a\uff0c\u628a\u6d3b\u52a8\u9875\u9762\u4fdd\u7559\u5728\u5185\u5b58\u4e2d\u4f9b\u8fdb\u7a0b\u4f7f\u7528\u3002
\u4ea4\u6362\u6280\u672f\u662f\u5c06\u6574\u4e2a\u8fdb\u7a0b\uff0c\u800c\u4e0d\u662f\u90e8\u5206\u9875\u9762\uff0c\u5168\u90e8\u4ea4\u6362\u5230\u78c1\u76d8\u4e0a\u3002<\/p>\n

\u4e8c\u3001vmstat\u7684\u4f7f\u7528<\/h3>\n

2.1.\u7528\u6cd5<\/h4>\n
  1. [<\/span>root@BJYF<\/span>-<\/span>7<\/span> <\/span>~]#<\/span>vmstat <\/span>--<\/span>help<\/span><\/code><\/li>
  2. usage<\/span>:<\/span> vmstat <\/span>[-<\/span>V<\/span>]<\/span> <\/span>[-<\/span>n<\/span>]<\/span> <\/span>[<\/span>delay <\/span>[<\/span>count<\/span>]]<\/span><\/code><\/li>
  3.               <\/span>-<\/span>V prints version<\/span>.\u663e\u793a<\/span>vmstat<\/span>\u7248\u672c\u4fe1\u606f.<\/span><\/code><\/li>
  4.               <\/span>-<\/span>n causes the headers <\/span>not<\/span> to be reprinted regularly<\/span>.<\/span><\/code><\/li>
  5.               <\/span>-<\/span>a <\/span>print<\/span> inactive<\/span>\/<\/span>active page stats<\/span>.\u663e\u793a\u6d3b\u8dc3\u548c\u975e\u6d3b\u8dc3\u5185\u5b58.<\/span><\/code><\/li>
  6.               <\/span>-<\/span>d prints disk statistics<\/span>.\u663e\u793a\u78c1\u76d8\u76f8\u5173\u7edf\u8ba1\u4fe1\u606f.<\/span><\/code><\/li>
  7.               <\/span>-<\/span>D prints disk table<\/span>.\u663e\u793a\u6307\u5b9a\u78c1\u76d8\u5206\u533a.<\/span><\/code><\/li>
  8.               <\/span>-<\/span>p prints disk partition statistics<\/span>.\u663e\u793a\u6307\u5b9a\u78c1\u76d8\u5206\u533a\u7edf\u8ba1\u4fe1\u606f.<\/span><\/code><\/li>
  9.               <\/span>-<\/span>s prints vm table<\/span>.\u663e\u793a\u5185\u5b58\u76f8\u5173\u7edf\u8ba1\u4fe1\u606f.<\/span><\/code><\/li>
  10.               <\/span>-<\/span>m prints slabinfo<\/span>.\u663e\u793a<\/span>slabinfo<\/span>.<\/span><\/code><\/li>
  11.               <\/span>-<\/span>t add timestamp to output<\/span>.\u663e\u793a\u65f6\u95f4\u4fe1\u606f.<\/span><\/code><\/li>
  12.               <\/span>-<\/span>S unit size<\/span>.\u6307\u5b9a\u663e\u793a\u4fe1\u606f\u7684\u5355\u4f4d\u3002<\/span><\/code><\/li>
  13.               delay <\/span>is<\/span> the delay between updates <\/span>in<\/span> seconds<\/span>.\u66f4\u65b0\u65f6\u95f4.<\/span><\/code><\/li>
  14.               unit size k<\/span>:<\/span>1000<\/span> K<\/span>:<\/span>1024<\/span> m<\/span>:<\/span>1000000<\/span> M<\/span>:<\/span>1048576<\/span> <\/span>(<\/span>default<\/span> <\/span>is<\/span> K<\/span>)<\/span><\/code><\/li>
  15.               count <\/span>is<\/span> the number of updates<\/span>.\u6b21\u6570.<\/span><\/code><\/li><\/ol><\/pre>\n
    2.2 \u4f7f\u7528\u8bf4\u660e<\/h4>\n
    1. [<\/span>root@BJYF<\/span>-<\/span>7<\/span> <\/span>~]#<\/span>vmstat <\/span>1<\/span> <\/span><\/code><\/li>
    2. procs <\/span>-----------<\/span>memory<\/span>----------<\/span> <\/span>---<\/span>swap<\/span>--<\/span> <\/span>-----<\/span>io<\/span>----<\/span> <\/span>--<\/span>system<\/span>--<\/span> <\/span>-----<\/span>cpu<\/span>-----<\/span><\/code><\/li>
    3.  r  b   swpd   free   buff  cache   si   so    bi    bo   <\/span>in<\/span>   cs us sy id wa st<\/span><\/code><\/li>
    4.  <\/span>1<\/span>  <\/span>0<\/span>  <\/span>10580<\/span> <\/span>6415376<\/span>  <\/span>78424<\/span>  <\/span>71864<\/span>    <\/span>7<\/span>   <\/span>10<\/span>     <\/span>9<\/span>    <\/span>11<\/span>   <\/span>51<\/span>   <\/span>37<\/span>  <\/span>3<\/span>  <\/span>0<\/span> <\/span>97<\/span>  <\/span>0<\/span>  <\/span>0<\/span><\/code><\/li>
    5. [<\/span>root@BJYF<\/span>-<\/span>7<\/span> <\/span>~]#<\/span>vmstat <\/span>-<\/span>S M<\/span><\/code><\/li>
    6. procs <\/span>-----------<\/span>memory<\/span>----------<\/span> <\/span>---<\/span>swap<\/span>--<\/span> <\/span>-----<\/span>io<\/span>----<\/span> <\/span>--<\/span>system<\/span>--<\/span> <\/span>-----<\/span>cpu<\/span>-----<\/span><\/code><\/li>
    7.  r  b   swpd   free   buff  cache   si   so    bi    bo   <\/span>in<\/span>   cs us sy id wa st<\/span><\/code><\/li>
    8.  <\/span>0<\/span>  <\/span>0<\/span>     <\/span>10<\/span>   <\/span>7183<\/span>     <\/span>77<\/span>    <\/span>106<\/span>    <\/span>0<\/span>    <\/span>0<\/span>    <\/span>10<\/span>    <\/span>11<\/span>   <\/span>51<\/span>   <\/span>36<\/span>  <\/span>3<\/span>  <\/span>0<\/span> <\/span>97<\/span>  <\/span>0<\/span>  <\/span>0<\/span><\/code><\/li><\/ol><\/pre>\n
      \u5b57\u6bb5\u8bf4\u660e\uff1a
      Procs\uff08\u8fdb\u7a0b\uff09<\/strong>
      r: \u8fd0\u884c\u961f\u5217\u4e2d\u8fdb\u7a0b\u6570\u91cf
      b: \u7b49\u5f85IO\u7684\u8fdb\u7a0b\u6570\u91cf
      Memory\uff08\u5185\u5b58\uff09<\/strong>
      swpd: \u4f7f\u7528\u865a\u62df\u5185\u5b58\u5927\u5c0f
      free: \u53ef\u7528\u5185\u5b58\u5927\u5c0f
      buff: \u7528\u4f5c\u7f13\u51b2\u7684\u5185\u5b58\u5927\u5c0f
      cache: \u7528\u4f5c\u7f13\u5b58\u7684\u5185\u5b58\u5927\u5c0f
      Swap<\/strong>
      si: \u6bcf\u79d2\u4ece\u78c1\u76d8\u5199\u5230\u865a\u62df\u5185\u5b58\u7684\u5927\u5c0f
      so: \u6bcf\u79d2\u5199\u5165\u78c1\u76d8\u7684\u865a\u62df\u5185\u5b58\u5927\u5c0f
      IO<\/strong>
      bi: \u5757\u8bbe\u5907\u6bcf\u79d2\u63a5\u6536\u7684\u5757\u6570\u91cf\uff0c\u8fd9\u91cc\u7684\u5757\u8bbe\u5907\u662f\u6307\u7cfb\u7edf\u4e0a\u6240\u6709\u7684\u78c1\u76d8\u548c\u5176\u4ed6\u5757\u8bbe\u5907\uff0c\u9ed8\u8ba4\u5757\u5927\u5c0f\u662f1024byte\u3002
      bo: \u5757\u8bbe\u5907\u6bcf\u79d2\u53d1\u9001\u7684\u5757\u6570\u91cf\uff0c\u4f8b\u5982\u6211\u4eec\u8bfb\u53d6\u6587\u4ef6\uff0cbo\u5c31\u8981\u5927\u4e8e0\u3002bi\u548cbo\u4e00\u822c\u90fd\u8981\u63a5\u8fd10\uff0c\u4e0d\u7136\u5c31\u662fIO\u8fc7\u4e8e\u9891\u7e41\uff0c\u9700\u8981\u8c03\u6574\u3002
      \u7cfb\u7edf<\/strong>
      in: \u6bcf\u79d2\u4e2d\u65ad\u6570\uff0c\u5305\u62ec\u65f6\u949f\u4e2d\u65ad\u3002
      cs: \u6bcf\u79d2\u4e0a\u4e0b\u6587\u5207\u6362\u6570\uff0c\u4f8b\u5982\u6211\u4eec\u8c03\u7528\u7cfb\u7edf\u51fd\u6570\uff0c\u5c31\u8981\u8fdb\u884c\u4e0a\u4e0b\u6587\u5207\u6362\uff0c\u7ebf\u7a0b\u7684\u5207\u6362\uff0c\u4e5f\u8981\u8fdb\u7a0b\u4e0a\u4e0b\u6587\u5207\u6362\uff0c\u8fd9\u4e2a\u503c\u8981\u8d8a\u5c0f\u8d8a\u597d\uff0c\u592a\u5927\u4e86\uff0c\u8981\u8003\u8651\u8c03\u4f4e\u7ebf\u7a0b\u6216\u8005\u8fdb\u7a0b\u7684\u6570 \u76ee,\u4f8b\u5982\u5728apache\u548cnginx\u8fd9\u79cdweb\u670d\u52a1\u5668\u4e2d\uff0c\u6211\u4eec\u4e00\u822c\u505a\u6027\u80fd\u6d4b\u8bd5\u65f6\u4f1a\u8fdb\u884c\u51e0\u5343\u5e76\u53d1\u751a\u81f3\u51e0\u4e07\u5e76\u53d1\u7684\u6d4b\u8bd5\uff0c\u9009\u62e9web\u670d\u52a1\u5668\u7684\u8fdb\u7a0b\u53ef\u4ee5\u7531\u8fdb\u7a0b\u6216\u8005 \u7ebf\u7a0b\u7684\u5cf0\u503c\u4e00\u76f4\u4e0b\u8c03\uff0c\u538b\u6d4b\uff0c\u76f4\u5230cs\u5230\u4e00\u4e2a\u6bd4\u8f83\u5c0f\u7684\u503c\uff0c\u8fd9\u4e2a\u8fdb\u7a0b\u548c\u7ebf\u7a0b\u6570\u5c31\u662f\u6bd4\u8f83\u5408\u9002\u7684\u503c\u4e86\u3002\u7cfb\u7edf\u8c03\u7528\u4e5f\u662f\uff0c\u6bcf\u6b21\u8c03\u7528\u7cfb\u7edf\u51fd\u6570\uff0c\u6211\u4eec\u7684\u4ee3\u7801\u5c31\u4f1a\u8fdb\u5165\u5185\u6838\u7a7a \u95f4\uff0c\u5bfc\u81f4\u4e0a\u4e0b\u6587\u5207\u6362\uff0c\u8fd9\u4e2a\u662f\u5f88\u8017\u8d44\u6e90\uff0c\u4e5f\u8981\u5c3d\u91cf\u907f\u514d\u9891\u7e41\u8c03\u7528\u7cfb\u7edf\u51fd\u6570\u3002\u4e0a\u4e0b\u6587\u5207\u6362\u6b21\u6570\u8fc7\u591a\u8868\u793a\u4f60\u7684CPU\u5927\u90e8\u5206\u6d6a\u8d39\u5728\u4e0a\u4e0b\u6587\u5207\u6362\uff0c\u5bfc\u81f4CPU\u5e72\u6b63\u7ecf\u4e8b\u7684\u65f6\u95f4\u5c11\u4e86\uff0cCPU\u6ca1\u6709\u5145\u5206\u5229\u7528\uff0c\u662f\u4e0d\u53ef\u53d6\u7684\u3002
      CPU<\/strong>
      us: \u7528\u6237\u8fdb\u7a0b\u6267\u884c\u65f6\u95f4(user time)
      sy: \u7cfb\u7edf\u8fdb\u7a0b\u6267\u884c\u65f6\u95f4(system time)
      id: \u7a7a\u95f2\u65f6\u95f4(\u5305\u62ecIO\u7b49\u5f85\u65f6\u95f4)
      wa: \u7b49\u5f85IO\u65f6\u95f4<\/p>\n
      \u4e09\u3001\u6848\u4f8b\u6f14\u793a<\/h3>\n
      3.1 \u7a7a\u8d1f\u8f7d\u72b6\u6001\u4e0bvmstat\u7684\u8f93\u51fa<\/h4>\n
      1. [<\/span>root@BJYF<\/span>-<\/span>7<\/span> <\/span>~]#<\/span>vmstat <\/span>1<\/span> <\/span>4<\/span> <\/span><\/code><\/li>
      2. procs <\/span>-----------<\/span>memory<\/span>----------<\/span> <\/span>---<\/span>swap<\/span>--<\/span> <\/span>-----<\/span>io<\/span>----<\/span> <\/span>--<\/span>system<\/span>--<\/span> <\/span>-----<\/span>cpu<\/span>-----<\/span><\/code><\/li>
      3.  r  b   swpd   free   buff  cache   si   so    bi    bo   <\/span>in<\/span>   cs us sy id wa st<\/span><\/code><\/li>
      4.  <\/span>0<\/span>  <\/span>0<\/span>  <\/span>10580<\/span> <\/span>7395128<\/span>  <\/span>78136<\/span>  <\/span>70772<\/span>    <\/span>7<\/span>   <\/span>10<\/span>    <\/span>10<\/span>    <\/span>11<\/span>   <\/span>48<\/span>   <\/span>37<\/span>  <\/span>2<\/span>  <\/span>0<\/span> <\/span>97<\/span>  <\/span>0<\/span>  <\/span>0<\/span>    <\/span><\/code><\/li>
      5.  <\/span>0<\/span>  <\/span>0<\/span>  <\/span>10580<\/span> <\/span>7395120<\/span>  <\/span>78136<\/span>  <\/span>70772<\/span>    <\/span>0<\/span>    <\/span>0<\/span>     <\/span>0<\/span>     <\/span>0<\/span>   <\/span>53<\/span>   <\/span>55<\/span>  <\/span>0<\/span>  <\/span>0<\/span> <\/span>100<\/span>  <\/span>0<\/span>  <\/span>0<\/span>    <\/span><\/code><\/li>
      6.  <\/span>0<\/span>  <\/span>0<\/span>  <\/span>10580<\/span> <\/span>7395120<\/span>  <\/span>78136<\/span>  <\/span>70772<\/span>    <\/span>0<\/span>    <\/span>0<\/span>     <\/span>0<\/span>     <\/span>0<\/span>   <\/span>47<\/span>   <\/span>59<\/span>  <\/span>0<\/span>  <\/span>0<\/span> <\/span>100<\/span>  <\/span>0<\/span>  <\/span>0<\/span>    <\/span><\/code><\/li>
      7.  <\/span>0<\/span>  <\/span>0<\/span>  <\/span>10580<\/span> <\/span>7395120<\/span>  <\/span>78136<\/span>  <\/span>70772<\/span>    <\/span>0<\/span>    <\/span>0<\/span>     <\/span>0<\/span>     <\/span>0<\/span>   <\/span>36<\/span>   <\/span>55<\/span>  <\/span>0<\/span>  <\/span>0<\/span> <\/span>100<\/span>  <\/span>0<\/span>  <\/span>0<\/span>    <\/span><\/code><\/li>
      8. [<\/span>root@BJYF<\/span>-<\/span>7<\/span> <\/span>~]#<\/span>free<\/span><\/code><\/li>
      9.              total       used       free     shared    buffers     cached<\/span><\/code><\/li>
      10. Mem<\/span>:<\/span>       <\/span>8059684<\/span>     <\/span>664556<\/span>    <\/span>7395128<\/span>          <\/span>0<\/span>      <\/span>78136<\/span>      <\/span>70772<\/span><\/code><\/li>
      11. -<\/span>\/+ buffers\/<\/span>cache<\/span>:<\/span>     <\/span>515648<\/span>    <\/span>7544036<\/span><\/code><\/li>
      12. Swap<\/span>:<\/span>      <\/span>6143992<\/span>      <\/span>10580<\/span>    <\/span>6133412<\/span><\/code><\/li><\/ol><\/pre>\n
        \u6ce8\u610f\uff1a\u6211\u4eec\u5728\u8fd9\u91cc\u53d1\u73b0\u4e00\u4e2a\u5c0fbug\uff0cvmstat\u7b2c\u4e00\u6b21\u663e\u793a\u7684\u7ed3\u679c\u5f80\u5f80\u4f1a\u4e0d\u51c6\u786e\uff0c\u9700\u8981\u770b\u7b2c\u4e8c\u3001\u4e09\u6b21\u7684\u7ed3\u679c<\/strong><\/p>\n
        3.2 \u9ad8CPU\u4f7f\u7528\u60c5\u51b5\u7684vmstat\u8f93\u51fa<\/h4>\n
        1. [<\/span>root@BJYF<\/span>-<\/span>7<\/span> <\/span>~]#<\/span>vmstat <\/span>1<\/span> <\/span>4<\/span><\/code><\/li>
        2. procs <\/span>-----------<\/span>memory<\/span>----------<\/span> <\/span>---<\/span>swap<\/span>--<\/span> <\/span>-----<\/span>io<\/span>----<\/span> <\/span>--<\/span>system<\/span>--<\/span> <\/span>-----<\/span>cpu<\/span>-----<\/span><\/code><\/li>
        3.  r  b   swpd   free   buff  cache   si   so    bi    bo   <\/span>in<\/span>   cs us sy id wa st<\/span><\/code><\/li>
        4.  <\/span>2<\/span>  <\/span>0<\/span>  <\/span>10580<\/span> <\/span>5436328<\/span>  <\/span>78344<\/span>  <\/span>71864<\/span>    <\/span>7<\/span>   <\/span>10<\/span>     <\/span>9<\/span>    <\/span>11<\/span>   <\/span>49<\/span>   <\/span>37<\/span>  <\/span>3<\/span>  <\/span>0<\/span> <\/span>97<\/span>  <\/span>0<\/span>  <\/span>0<\/span>    <\/span><\/code><\/li>
        5.  <\/span>2<\/span>  <\/span>0<\/span>  <\/span>10580<\/span> <\/span>5436344<\/span>  <\/span>78344<\/span>  <\/span>71864<\/span>    <\/span>0<\/span>    <\/span>0<\/span>     <\/span>0<\/span>     <\/span>0<\/span> <\/span>2027<\/span>   <\/span>57<\/span> <\/span>100<\/span>  <\/span>0<\/span>  <\/span>0<\/span>  <\/span>0<\/span>  <\/span>0<\/span>    <\/span><\/code><\/li>
        6.  <\/span>2<\/span>  <\/span>0<\/span>  <\/span>10580<\/span> <\/span>5436360<\/span>  <\/span>78344<\/span>  <\/span>71864<\/span>    <\/span>0<\/span>    <\/span>0<\/span>     <\/span>0<\/span>     <\/span>8<\/span> <\/span>2027<\/span>   <\/span>65<\/span> <\/span>100<\/span>  <\/span>0<\/span>  <\/span>0<\/span>  <\/span>0<\/span>  <\/span>0<\/span>    <\/span><\/code><\/li>
        7.  <\/span>2<\/span>  <\/span>0<\/span>  <\/span>10580<\/span> <\/span>5436360<\/span>  <\/span>78344<\/span>  <\/span>71864<\/span>    <\/span>0<\/span>    <\/span>0<\/span>     <\/span>0<\/span>     <\/span>0<\/span> <\/span>2024<\/span>   <\/span>55<\/span> <\/span>100<\/span>  <\/span>0<\/span>  <\/span>0<\/span>  <\/span>0<\/span>  <\/span>0<\/span><\/code><\/li><\/ol><\/pre>\n
          \u548c\u4e0a\u9762\u5bf9\u7167\u53ef\u4ee5\u660e\u663e\u7684\u53d1\u73b0\uff0c\u8fd0\u884c\u961f\u5217\u4e3a2\uff0c\u5185\u5b58\u7a7a\u95f2\u533a\u57df\u51cf\u5c11\uff0c\u4e2d\u65ad\u6570\u503c\u8f83\u5927\uff0cCPU\u4e2d\u7684user%\u4f7f\u7528\u7387\u662f100%\u3002<\/p>\n
          3.3 \u9ad8CPU\u548c\u5185\u5b58\u4f7f\u7528\u60c5\u51b5\u7684vmstat\u8f93\u51fa<\/h4>\n
          1. [<\/span>root@BJYF<\/span>-<\/span>7<\/span>-<\/span>38<\/span> tmp<\/span>]#<\/span>vmstat  <\/span>1<\/span> <\/span>4<\/span><\/code><\/li>
          2. procs <\/span>-----------<\/span>memory<\/span>----------<\/span> <\/span>---<\/span>swap<\/span>--<\/span> <\/span>-----<\/span>io<\/span>----<\/span> <\/span>--<\/span>system<\/span>--<\/span> <\/span>-----<\/span>cpu<\/span>-----<\/span><\/code><\/li>
          3.  r  b   swpd   free   buff  cache   si   so    bi    bo   <\/span>in<\/span>   cs us sy id wa st<\/span><\/code><\/li>
          4.  <\/span>1<\/span>  <\/span>8<\/span> <\/span>4161944<\/span> <\/span>109876<\/span>    <\/span>252<\/span>   <\/span>4600<\/span> <\/span>17439<\/span> <\/span>27600<\/span> <\/span>17652<\/span> <\/span>27604<\/span> <\/span>1628<\/span>  <\/span>929<\/span> <\/span>16<\/span> <\/span>13<\/span> <\/span>29<\/span> <\/span>43<\/span>  <\/span>0<\/span>    <\/span><\/code><\/li>
          5.  <\/span>0<\/span>  <\/span>9<\/span> <\/span>4158880<\/span> <\/span>104684<\/span>    <\/span>252<\/span>   <\/span>4552<\/span> <\/span>58240<\/span> <\/span>55268<\/span> <\/span>58240<\/span> <\/span>55268<\/span> <\/span>4595<\/span> <\/span>2578<\/span> <\/span>10<\/span> <\/span>14<\/span>  <\/span>0<\/span> <\/span>77<\/span>  <\/span>0<\/span>    <\/span><\/code><\/li>
          6.  <\/span>8<\/span>  <\/span>7<\/span> <\/span>4110180<\/span>  <\/span>92344<\/span>    <\/span>252<\/span>   <\/span>4732<\/span> <\/span>98604<\/span> <\/span>55540<\/span> <\/span>98604<\/span> <\/span>55540<\/span> <\/span>4890<\/span> <\/span>5189<\/span> <\/span>17<\/span> <\/span>18<\/span>  <\/span>0<\/span> <\/span>65<\/span>  <\/span>1<\/span>    <\/span><\/code><\/li>
          7.  <\/span>1<\/span>  <\/span>8<\/span> <\/span>4161664<\/span> <\/span>105228<\/span>    <\/span>252<\/span>   <\/span>4648<\/span> <\/span>59272<\/span> <\/span>110972<\/span> <\/span>59272<\/span> <\/span>110972<\/span> <\/span>8996<\/span> <\/span>2551<\/span> <\/span>10<\/span> <\/span>26<\/span>  <\/span>0<\/span> <\/span>65<\/span>  <\/span>0<\/span><\/code><\/li><\/ol><\/pre>\n
            \u4ece\u8f93\u51fa\u7ed3\u679c\u6765\u770b\uff0c\u5904\u5728block\u963b\u585e\u72b6\u6001\u7b49\u5f85IO\u64cd\u4f5c\u7684\u6570\u91cf\u57288\u5de6\u53f3\uff0cswap\u4f7f\u75284G\uff0c\u51e0\u4e4e80%\uff0c\u5269\u4f59\u7269\u7406\u5185\u5b58100M\u5de6\u53f3\uff0cswap\u6362\u5165\u6362\u51fa\u572860M\u6bcf\u79d2\uff0c\u4e2d\u65ad\u548c\u4e0a\u4e0b\u6587\u6b21\u6570\u8f83\u591a\uff0cCPU\u4e2duser%\u4e3a20%\uff0cwait%\u4e3a70%\u3002<\/p>\n
            \u6b64\u65f6\u901a\u8fc7top\u6765\u770b\uff0cCPU\u5360\u7528\u6700\u591a\u7684\u8fdb\u7a0b\u4e3a\u7cfb\u7edf\u7684kswapd0\u3002iostat\u67e5\u770b\u78c1\u76d8\u4f7f\u7528\u7387100%\u3002<\/p>\n
            \u7531\u6b64\u63a8\u65ad\uff0cswap\u4ea4\u6362\u8fc7\u4e8e\u9891\u7e41\uff0c\u5bfc\u81f4IO\u4f7f\u7528\u7387100%\uff0c\u8fc7\u591a\u7684\u8fdb\u7a0b\u5904\u5728\u963b\u585e\u72b6\u6001\uff0c\u5de5\u4f5c\u6548\u7387\u6781\u4f4e\u3002<\/p>\n
            \u800c\u4e4b\u6240\u4ee5\u4ea7\u751f\u5f88\u591a\u7684swap\u4ea4\u6362\uff0c\u5f88\u53ef\u80fd\u662f\u56e0\u4e3a\u5185\u5b58\u4e0d\u8db3\u9020\u6210\u7684\u3002\u9700\u8981\u5347\u7ea7\u5185\u5b58\u3002<\/p>\n
            \u5185\u5b58\u5347\u52308G\u4ee5\u540e\uff0c\u5728\u6b64\u8fd0\u884c\u76f8\u540c\u7684\u6d4b\u8bd5\u7a0b\u5e8f\u7ed3\u679c\u5982\u4e0b\uff1a<\/p>\n
            1. [<\/span>root@BJYF<\/span>-<\/span>7<\/span>-<\/span>38<\/span> tmp<\/span>]#<\/span>vmstat <\/span>1<\/span> <\/span>4<\/span><\/code><\/li>
            2. procs <\/span>-----------<\/span>memory<\/span>----------<\/span> <\/span>---<\/span>swap<\/span>--<\/span> <\/span>-----<\/span>io<\/span>----<\/span> <\/span>--<\/span>system<\/span>--<\/span> <\/span>-----<\/span>cpu<\/span>-----<\/span><\/code><\/li>
            3.  r  b   swpd   free   buff  cache   si   so    bi    bo   <\/span>in<\/span>   cs us sy id wa st<\/span><\/code><\/li>
            4.  <\/span>8<\/span>  <\/span>0<\/span>  <\/span>10712<\/span> <\/span>120884<\/span>    <\/span>304<\/span>  <\/span>10128<\/span>   <\/span>96<\/span>  <\/span>185<\/span>   <\/span>191<\/span>   <\/span>188<\/span>  <\/span>654<\/span>  <\/span>253<\/span> <\/span>61<\/span>  <\/span>1<\/span> <\/span>38<\/span>  <\/span>0<\/span>  <\/span>0<\/span>    <\/span><\/code><\/li>
            5.  <\/span>8<\/span>  <\/span>0<\/span>  <\/span>10712<\/span> <\/span>120884<\/span>    <\/span>304<\/span>  <\/span>10128<\/span>    <\/span>0<\/span>    <\/span>0<\/span>     <\/span>0<\/span>     <\/span>0<\/span> <\/span>2005<\/span>  <\/span>674<\/span> <\/span>100<\/span>  <\/span>0<\/span>  <\/span>0<\/span>  <\/span>0<\/span>  <\/span>0<\/span>    <\/span><\/code><\/li>
            6.  <\/span>8<\/span>  <\/span>0<\/span>  <\/span>10712<\/span> <\/span>120884<\/span>    <\/span>304<\/span>  <\/span>10128<\/span>    <\/span>0<\/span>    <\/span>0<\/span>     <\/span>0<\/span>     <\/span>0<\/span> <\/span>2009<\/span>  <\/span>675<\/span> <\/span>100<\/span>  <\/span>0<\/span>  <\/span>0<\/span>  <\/span>0<\/span>  <\/span>0<\/span>    <\/span><\/code><\/li>
            7.  <\/span>8<\/span>  <\/span>0<\/span>  <\/span>10712<\/span> <\/span>120884<\/span>    <\/span>304<\/span>  <\/span>10128<\/span>    <\/span>0<\/span>    <\/span>0<\/span>     <\/span>0<\/span>     <\/span>0<\/span> <\/span>2005<\/span>  <\/span>678<\/span> <\/span>100<\/span>  <\/span>0<\/span>  <\/span>0<\/span>  <\/span>0<\/span>  <\/span>0<\/span><\/code><\/li><\/ol><\/pre>\n
              \u5347\u7ea7\u4ee5\u540e\uff0cswap\u4f7f\u75281G\u5de6\u53f3\uff0c\u4f46swap\u6362\u5165\u6362\u51fa\u57fa\u672c\u4e3a0\uff0cwait%\u4e3a0\uff0cuser%\u4e3a100%\uff0c\u4e00\u5207\u90fd\u6b63\u5e38\u4e86\u3002<\/p>\n
              \u53c2\u8003\u6587\u7ae0<\/h4>\n
              http:\/\/blog.csdn.net\/xifeijian\/article\/details\/8209788<\/a><\/p>\n
              \u672c\u7ad9\u4e4b\u524d\u7684\u6587\u7ae0\uff1aLinux\u5b66\u4e60\u7b14\u8bb0\u4e4bvmstat<\/a><\/p>\n
              \u6765\u81ea\u4e3a\u77e5\u7b14\u8bb0(Wiz)<\/a><\/div>\n
              \u8f6c\u8f7d\u8bf7\u6ce8\u660e\uff1aIPCPU-\u7f51\u7edc\u4e4b\u8def<\/a> » Linux\u7cfb\u7edf\u76d1\u63a7\u5de5\u5177\u4e4bvmstat\u8be6\u89e3<\/a><\/p>","protected":false},"excerpt":{"rendered":"
              vmstat\u662f\u4e00\u4e2a\u67e5\u770b\u865a\u62df\u5185\u5b58\uff08Virtual Memory\uff09\u4f7f\u7528\u72b6\u51b5\u7684\u5de5\u5177\uff0c\u4f7f\u7528vmstat\u547d\u4ee4\u53ef\u4ee5\u5f97\u5230\u5173\u4e8e\u8fdb\u7a0b\u3001\u5185\u5b58\u3001\u5185\u5b58\u5206\u9875\u3001\u5835\u585eIO\u3001traps\u53caCPU\u6d3b\u52a8\u7684\u4fe1\u606f\u3002 vmstat\u662f\u4e00\u4e2a\u5341\u5206\u6709\u7528\u7684Linux\u7cfb\u7edf\u76d1\u63a7\u5de5\u5177\uff0c\u662fprocps\u7ec4\u4ef6\u7684\u4e00\u90e8\u5206\u3002 \u4e00\u3001\u524d\u8a00 \u5f88\u663e\u7136\u4ece\u540d\u5b57\u4e2d\u6211\u4eec\u5c31\u53ef\u4ee5\u77e5\u9053vmstat\u662f\u4e00\u4e2a\u67e5\u770b\u865a\u62df\u5185\u5b58\uff08Virtual Memory\uff09\u4f7f\u7528\u72b6\u51b5\u7684\u5de5\u5177\uff0c\u4f46\u662f\u600e\u6837\u901a\u8fc7vmstat\u6765\u53d1\u73b0\u7cfb\u7edf\u4e2d\u7684\u74f6\u9888\u5462\uff1f\u5728\u56de\u7b54\u8fd9\u4e2a\u95ee\u9898\u524d\uff0c\u8fd8\u662f\u8ba9\u6211\u4eec\u56de\u987e\u4e00\u4e0bLinux\u4e2d\u5173\u4e8e\u865a\u62df\u5185\u5b58\u76f8\u5173\u5185\u5bb9\u3002 \u865a\u62df\u5185\u5b58\u8fd0\u884c\u539f\u7406 \u5728\u7cfb\u7edf\u4e2d\u8fd0\u884c\u7684\u6bcf\u4e2a\u8fdb\u7a0b\u90fd\u9700\u8981\u4f7f\u7528\u5230\u5185\u5b58\uff0c\u4f46\u4e0d\u662f\u6bcf\u4e2a\u8fdb\u7a0b\u90fd\u9700\u8981\u6bcf\u65f6\u6bcf\u523b\u4f7f\u7528\u7cfb\u7edf\u5206\u914d\u7684\u5185\u5b58\u7a7a\u95f4\u3002\u5f53\u7cfb\u7edf\u8fd0\u884c\u6240\u9700\u5185\u5b58\u8d85\u8fc7\u5b9e\u9645\u7684\u7269\u7406\u5185\u5b58\uff0c\u5185\u6838\u4f1a\u91ca \u653e\u67d0\u4e9b\u8fdb\u7a0b\u6240\u5360\u7528\u4f46\u672a\u4f7f\u7528\u7684\u90e8\u5206\u6216\u6240\u6709\u7269\u7406\u5185\u5b58\uff0c\u5c06\u8fd9\u90e8\u5206\u8d44\u6599\u5b58\u50a8\u5728\u78c1\u76d8\u4e0a\u76f4\u5230\u8fdb\u7a0b\u4e0b\u4e00\u6b21\u8c03\u7528\uff0c\u5e76\u5c06\u91ca\u653e\u51fa\u7684\u5185\u5b58\u63d0\u4f9b\u7ed9\u6709\u9700\u8981\u7684\u8fdb\u7a0b\u4f7f\u7528\u3002\u5728Linux\u5185\u5b58\u7ba1\u7406\u4e2d\uff0c\u4e3b\u8981\u662f\u901a\u8fc7\u201c\u8c03\u9875Paging\u201d\u548c\u201c\u4ea4\u6362Swapping\u201d\u6765\u5b8c\u6210\u4e0a\u8ff0\u7684\u5185\u5b58\u8c03\u5ea6\u3002\u8c03\u9875\u7b97\u6cd5\u662f\u5c06\u5185\u5b58\u4e2d\u6700\u8fd1\u4e0d\u5e38\u4f7f\u7528\u7684\u9875\u9762\u6362\u5230\u78c1\u76d8\u4e0a\uff0c\u628a\u6d3b\u52a8\u9875\u9762\u4fdd\u7559\u5728\u5185\u5b58\u4e2d\u4f9b\u8fdb\u7a0b\u4f7f\u7528\u3002\u4ea4\u6362\u6280\u672f\u662f\u5c06\u6574\u4e2a\u8fdb\u7a0b\uff0c\u800c\u4e0d\u662f\u90e8\u5206\u9875\u9762\uff0c\u5168\u90e8\u4ea4\u6362\u5230\u78c1\u76d8\u4e0a\u3002 \u4e8c\u3001vmstat\u7684\u4f7f\u7528 2.1.\u7528\u6cd5 [root@BJYF-7 ~]#vmstat –helpusage: vmstat [-V] [-n] [delay [count]] -V prints version.\u663e\u793avmstat\u7248\u672c\u4fe1\u606f. -n causes the headers not to be reprinted regularly. -a print inactive\/active page stats.\u663e\u793a\u6d3b\u8dc3\u548c\u975e\u6d3b\u8dc3\u5185\u5b58. -d prints disk statistics.\u663e\u793a\u78c1\u76d8\u76f8\u5173\u7edf\u8ba1\u4fe1\u606f. -D prints disk table.\u663e\u793a\u6307\u5b9a\u78c1\u76d8\u5206\u533a. -p prints disk partition statistics.\u663e\u793a\u6307\u5b9a\u78c1\u76d8\u5206\u533a\u7edf\u8ba1\u4fe1\u606f. -s prints vm table.\u663e\u793a\u5185\u5b58\u76f8\u5173\u7edf\u8ba1\u4fe1\u606f. -m prints […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[13],"tags":[17,30,31,32],"_links":{"self":[{"href":"https:\/\/c.ipcpu.com\/wp-json\/wp\/v2\/posts\/398"}],"collection":[{"href":"https:\/\/c.ipcpu.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/c.ipcpu.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/c.ipcpu.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/c.ipcpu.com\/wp-json\/wp\/v2\/comments?post=398"}],"version-history":[{"count":0,"href":"https:\/\/c.ipcpu.com\/wp-json\/wp\/v2\/posts\/398\/revisions"}],"wp:attachment":[{"href":"https:\/\/c.ipcpu.com\/wp-json\/wp\/v2\/media?parent=398"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/c.ipcpu.com\/wp-json\/wp\/v2\/categories?post=398"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/c.ipcpu.com\/wp-json\/wp\/v2\/tags?post=398"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}