{"id":831,"date":"2019-10-09T14:07:11","date_gmt":"2019-10-09T06:07:11","guid":{"rendered":"http:\/\/149.129.74.185\/?p=831"},"modified":"2019-10-09T14:07:11","modified_gmt":"2019-10-09T06:07:11","slug":"%e6%93%8d%e4%bd%9c%e7%b3%bb%e7%bb%9fweek-3-%e8%a1%a5-chapter-3","status":"publish","type":"post","link":"http:\/\/www.magicmipamipa.com\/?p=831","title":{"rendered":"[\u64cd\u4f5c\u7cfb\u7edf]Week 3 \u8865 Chapter 3"},"content":{"rendered":"

\u8fdb\u7a0bProcess<\/h2>\n

\u4e00\u3001\u8fdb\u7a0b\u6982\u5ff5<\/h5>\n

1.\u8fdb\u7a0b<\/p>\n

\n
\n
\n
\n
\n
\n
\u8fdb\u7a0b\u662f\u6b63\u5728\u6267\u884c\u7684\u7a0b\u5e8f\uff08\u6d3b\u52a8\u5b9e\u4f53\uff0c\u5373\u5b83\u6b63\u5728\u8fd0\u884c\u7a0b\u5f0f\uff09<\/span><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n
\n
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    \n
  • \u8ba1\u7b97\u673a\u4e0a\u7684\u57fa\u672c\u5de5\u4f5c\u5355\u5143\uff0c\u5de5\u4f5c\uff0c\u4efb\u52a1\u3002<\/span><\/span><\/li>\n
  • \u5e26\u6709\u4e00\u4e9b\u8d44\u6e90\u7684\u8bf4\u660e\u5bb9\u5668\uff1a\u2013\u4f8b\u5982 CPU\u65f6\u95f4\uff08CPU\u6267\u884c<\/span>\u6307\u4ee4\uff0c\u5185\u5b58\uff0c\u6587\u4ef6\uff0cI \/ O\u8bbe\u5907\u4ee5\u5b8c\u6210\u5176\u4efb\u52a1<\/span><\/span><\/li>\n
  • \u793a\u4f8b\uff1a\u7f16\u8bd1\u8fc7\u7a0b\uff0c\u6587\u5b57\u5904\u7406\u8fc7\u7a0b\uff0c\u8c03\u5ea6\u7a0b\u5e8f\uff08sched\uff0c<\/span>swapper\uff09\u8fdb\u7a0b\u6216\u5b88\u62a4\u8fdb\u7a0b\uff1aftpd\uff0chttpd<\/span><\/span><\/li>\n<\/ul>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n

    jobs\u4f5c\u4e1a=user programs\u7528\u6237\u7a0b\u5e8f= tasks\u4efb\u52a1= process \u8fdb\u7a0b<\/span><\/p>\n

    MEMO:\u8fdb\u7a0b\u662f\u4ec0\u4e48\uff1f<\/span><\/p>\n

    \u4e00\u4e2a\u5177\u6709\u4e00\u5b9a\u72ec\u7acb\u529f\u80fd\u7684\u7a0b\u5e8f\u5728\u4e00\u4e2a\u6570\u636e\u96c6\u5408\u4e0a\u7684\u4e00\u6b21\u52a8\u6001\u6267\u884c\u8fc7\u7a0b\u3002 <\/span><\/p>\n

    \u6b63\u5728\u6267\u884c\u4e2d\u7684\u7a0b\u5e8f<\/span><\/strong> a program in execution<\/span><\/p>\n

    <\/p><\/blockquote>\n

    2.\u8fdb\u7a0b\u72b6\u6001 Process State<\/p>\n

    As a process executes, it changes state<\/p>\n

      \n
    • New\uff08\u65b0\u7684\uff09: The process is being created.<\/li>\n
    • Running\uff08\u8fd0\u884c\u3001\u6267\u884c\uff09: Instructions are being executed.<\/li>\n
    • Ready\uff08\u5c31\u7eea\uff09: The process is waiting to be assigned to a processor (CPU).\u7b49\u5f85\u67d0\u4e2a\u4e8b\u4ef6\u53d1\u751f<\/li>\n
    • Waiting\uff08\u7b49\u5f85\u3001blocked\u963b\u585e\uff09: The process is waiting for some event to occur.<\/li>\n
    • Terminated\uff08\u7ec8\u6b62\uff09: The process has finished execution.<\/li>\n<\/ul>\n

      \u591a\u4e2a\u8fdb\u7a0b\u53ef\u4ee5\u5904\u4e8e\u5c31\u7eea<\/em><\/strong><\/span>\uff08\u7b49\u5f85CPU<\/em>\uff09\u6216\u7b49\u5f85<\/span><\/em><\/strong>\uff08\u7b49\u5f85\u4e8b\u4ef6\u548cIO<\/em>\uff09\u72b6\u6001<\/p>\n

       <\/p>\n

      3.\u8fdb\u7a0b\u63a7\u5236\u5feb PCB<\/p>\n

      <\/p>\n

        \n
      • \u8fdb\u7a0b\u72b6\u6001<\/li>\n
      • \u7a0b\u5e8f\u8ba1\u6570\u5668<\/li>\n
      • CPU\u5bc4\u5b58\u5668<\/li>\n
      • CPU\u8c03\u5ea6\u4fe1\u606f<\/li>\n
      • \u5185\u5b58\u7ba1\u7406\u4fe1\u606f<\/li>\n
      • \u8bb0\u8d26\u4fe1\u606f<\/li>\n
      • IO\u72b6\u6001\u4fe1\u606f<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"

        \u8fdb\u7a0bProcess \u4e00\u3001\u8fdb\u7a0b\u6982\u5ff5 1.\u8fdb\u7a0b \u8fdb\u7a0b\u662f\u6b63\u5728\u6267\u884c\u7684\u7a0b\u5e8f\uff08\u6d3b\u52a8\u5b9e\u4f53\uff0c\u5373\u5b83\u6b63\u5728\u8fd0\u884c\u7a0b\u5f0f\uff09 \u8ba1\u7b97 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[16,20],"tags":[],"_links":{"self":[{"href":"http:\/\/www.magicmipamipa.com\/index.php?rest_route=\/wp\/v2\/posts\/831"}],"collection":[{"href":"http:\/\/www.magicmipamipa.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.magicmipamipa.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.magicmipamipa.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.magicmipamipa.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=831"}],"version-history":[{"count":1,"href":"http:\/\/www.magicmipamipa.com\/index.php?rest_route=\/wp\/v2\/posts\/831\/revisions"}],"predecessor-version":[{"id":841,"href":"http:\/\/www.magicmipamipa.com\/index.php?rest_route=\/wp\/v2\/posts\/831\/revisions\/841"}],"wp:attachment":[{"href":"http:\/\/www.magicmipamipa.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=831"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.magicmipamipa.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=831"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.magicmipamipa.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=831"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}