{"id":232846,"date":"2020-12-29T16:50:10","date_gmt":"2020-12-29T08:50:10","guid":{"rendered":"http:\/\/4563.org\/?p=232846"},"modified":"2020-12-29T16:50:10","modified_gmt":"2020-12-29T08:50:10","slug":"%e5%85%b3%e4%ba%8e-mysql-%e7%9a%84%e9%a1%b5%e9%94%81","status":"publish","type":"post","link":"http:\/\/4563.org\/?p=232846","title":{"rendered":"\u5173\u4e8e mysql \u7684\u9875\u9501"},"content":{"rendered":"
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\u5173\u4e8e mysql \u7684\u9875\u9501 <\/h1>\n

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\u8cc7\u6df1\u5927\u4f6c : Cyshall <\/span> <\/i> 9<\/span> <\/div>\n
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\u5404\u4f4d\uff0c\u95ee\u4e2a\u5173\u4e8e mysql \u9875\u9501\u7684\u95ee\u9898\u3002<\/p>\n

\u9996\u5148\u9875\u8fd9\u4e2a\u6982\u5ff5\u5728 mysql \u4e2d\u6709\u4e24\u5904\u5730\u65b9\u4f1a\u51fa\u73b0\uff0c\u4e00\u4e2a\u662f innodb \u5f15\u64ce\u4e2d\u78c1\u76d8\u7ba1\u7406\u7684\u6700\u5c0f\u5355\u4f4d\uff0c\u4e00\u4e2a\u5c31\u662f\u9875\u9501\uff0c\u8fd9\u4e24\u4e2a\u5730\u65b9\u7684\u9875\u662f\u4e00\u4e2a\u6982\u5ff5\u5417\uff1f<\/p>\n

\u5982\u679c\u662f\u7684\u8bdd\uff0c\u53c8\u4ea7\u751f\u4e86\u53e6\u5916\u4e00\u4e2a\u95ee\u9898\uff1a\u9996\u5148\u9875\u9501\u7684\u7c92\u5ea6\u662f\u5728\u8868\u9501\u548c\u884c\u9501\u4e4b\u95f4\u7684\uff08\u884c\u9501<\u9875\u9501<\u8868\u9501\uff09\uff0c\u4f46\u662f\u9875\u7684\u5927\u5c0f\u662f 16KB\uff0c\u4e00\u5f20\u8868\u5982\u679c\u53ea\u5b58\u4e00\u884c\u6570\u636e\u660e\u663e\u4e0d\u53ef\u80fd\u5927\u4e8e\u9875\uff0c\u90a3\u662f\u4e0d\u662f\u53ef\u4ee5\u7406\u89e3\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\u8868\u9501\u7684\u7c92\u5ea6\u8981\u5c0f\u4e8e\u9875\u9501\uff1f\uff08\u6216\u8005\u8fd9\u91cc\u7684\u7c92\u5ea6\u5927\u5c0f\u4e0d\u662f\u6309\u7167\u6570\u636e\u5927\u5c0f\u6765\u7684\uff1f\uff09<\/p>\n

\u5176\u6b21\uff0cinnodb \u4e2d\u7684\u9875\u76f8\u8f83\u4e8e\u9875\u9501\u4e2d\u7684\u9875\u611f\u89c9\u62bd\u8c61\u5c42\u6b21\u66f4\u4f4e\uff0c\u4e5f\u5c31\u662f\u8bf4\u5b8c\u5168\u662f\u4e0d\u540c\u5c42\u6b21\u7684\u6982\u5ff5\u4e86\uff0c\u6bd5\u7adf innodb \u4e2d\u7684\u9875\u662f\u5b58\u6570\u636e\u7684\u5730\u65b9\u4e86\uff08\u6211\u77e5\u9053 mysql \u4e0b\u9762\u8fd8\u6709\u6587\u4ef6\u7cfb\u7edf\uff0c\u6587\u4ef6\u7cfb\u7edf\u4e2d\u4e5f\u6709\u9875\u7684\u6982\u5ff5\uff0c\u8fd9\u91cc\u53ea\u63d0 mysql \uff09\u3002 \u771f\u7684\u5f88\u8ff7\u60d1\uff0c\u4e0d\u77e5\u9053\u6709\u6ca1\u6709\u8001\u54e5\u53ef\u4ee5\u89e3\u7b54\u4e00\u4e0b\u3002<\/p>\n<\/p><\/div>\n

\u5927\u4f6c\u6709\u8a71\u8aaa<\/b> (8<\/span>) <\/div>\n
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    \n
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    \u8cc7\u6df1\u5927\u4f6c : xsm1890 <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    1.\u4e00\u5f20\u8868\u5982\u679c\u53ea\u5b58\u4e00\u884c\u6570\u636e\u660e\u663e\u4e0d\u53ef\u80fd\u5927\u4e8e\u9875\u3002\u8fd9\u4e2a\u89c2\u70b9\u9996\u5148\u662f\u9519\u8bef\u7684\uff0c\u5bf9\u4e8e innodb\uff0c\u5efa\u7acb\u4e00\u5f20\u8868\uff0c\u9884\u5206\u914d 6 \u4e2a\u6570\u636e\u9875\uff1b\u63d2\u5165\u4e00\u6761\u6570\u636e\u540e\uff0c\u5360\u7528\u4e09\u4e2a\u6570\u636e\u9875\uff0c\u4e00\u4e2a\u6570\u636e\u9875\u5305\u542b\u57fa\u672c\u4fe1\u606f\uff0c\u4e00\u4e2a\u6570\u636e\u9875\u5305\u542b\u805a\u7c07\u7d22\u5f15\u4fe1\u606f\uff08\u6ca1\u6709\u663e\u793a\u6307\u5b9a\u4f1a\u6709\u751f\u6210\u9690\u5f0f\u7684\uff09\uff0c\u53e6\u5916\u4e00\u4e2a\u9875\u5305\u542b\u7684\u662f\u63d2\u5165\u7684\u6570\u636e\uff0c\u6570\u636e\u884c\u957f\u5ea6\u8d85\u8fc7\u4e03\u5343\u4e94\u6bd4\u7279\u8fd8\u4f1a\u6709\u4e00\u4e2a\u884c\u8fc1\u79fb\u6570\u636e\u9875\uff08 7500 \u662f\u5927\u6982\u503c\uff0c\u5177\u4f53\u5fd8\u4e86\uff09
    2.\u5173\u4e8e\u9875\u5c42\u6b21\u7684\u95ee\u9898\u3002\u9996\u5148\uff0cMySQL \u662f\u4e2a\u63d2\u62d4\u5f0f\u5f15\u64ce\u7684\u6570\u636e\u5e93\uff0cinnodb \u53ea\u662f\u5176\u4e2d\u4e00\u79cd\u5b58\u50a8\u5f15\u64ce\u3002\u6240\u4ee5\u4e2a\u4eba\u89c9\u5f97\uff0c\u8fd9\u91cc\u5e76\u6ca1\u6709\u5c42\u6b21\u9ad8\u4f4e\u7684\u95ee\u9898\uff0c\u53ea\u662f\u4e24\u79cd\u4e0d\u540c\u5c42\u9762\u7684\u8bf4\u6cd5\u800c\u5df2\uff1b\u4f46\u662f mysql \u5c42\u9762\u7684\u9875\u5305\u542b\u7684\u4e1c\u897f\u4f1a\u66f4\u5927\u4e9b\u800c\u5df2 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
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    \u8cc7\u6df1\u5927\u4f6c : cherryQWE <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u95ee\uff1a…\u4e00\u5f20\u8868\u5982\u679c\u53ea\u5b58\u4e00\u884c\u6570\u636e\u660e\u663e\u4e0d\u53ef\u80fd\u5927\u4e8e\u9875\uff0c\u90a3\u662f\u4e0d\u662f\u53ef\u4ee5\u7406\u89e3\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\u8868\u9501\u7684\u7c92\u5ea6\u8981\u5c0f\u4e8e\u9875\u9501\uff1f
    \u7b54\uff1a\u4e0d\u4f1a\u554a\uff0c\u53ea\u6709\u4e00\u6761\u6570\u636e\u7684\u8bdd\uff0c\u4e5f\u662f\u5b58\u5728\u4e00\u4e2a 16k \u9875\u4e0a\uff0c\u8868\u662f\u9875\u7684\u5916\u5c42\u5bb9\u5668\uff08\u627e\u4e0d\u5230\u5408\u9002\u7684\u8bcd\uff0c\u5c31\u6682\u5b9a\u5bb9\u5668\u5427\uff09\uff0c\u603b\u4e4b\uff0c\u9875\u7684\u5927\u5c0f\u662f\u56fa\u5b9a\u7684\uff0c\u5c11\u4e8e\u4e00\u4e2a\u9875\u4e86\u8fd8\u662f\u4e00\u4e2a\u9875\uff0c\u591a\u4e86\u7ee7\u7eed\u65b0\u589e\u9875\u3002<\/p>\n

    \u95ee\uff1a…\u5176\u6b21\uff0cinnodb \u4e2d\u7684\u9875\u76f8\u8f83\u4e8e\u9875\u9501\u4e2d\u7684\u9875\u611f\u89c9\u62bd\u8c61\u5c42\u6b21\u66f4\u4f4e\uff0c\u4e5f\u5c31\u662f\u8bf4\u5b8c\u5168\u662f\u4e0d\u540c\u5c42\u6b21\u7684\u6982\u5ff5\u4e86\uff0c\u6bd5\u7adf innodb \u4e2d\u7684\u9875\u662f\u5b58\u6570\u636e\u7684\u5730\u65b9\u4e86…
    \u7b54\uff1aDB \u5185\u90e8\u4e5f\u6709\u4e00\u5957\u5b58\u50a8\u7ed3\u6784\u554a\uff0c\u600e\u4e48\u4f1a\u548c OS \u6df7\u4e00\u8d77\u5462\uff0c\u4e24\u5c42\u4e1c\u897f\u5440\u3002<\/p>\n

    \u4f60\u8981\u4e0d\u770b\u770b\u6e90\u7801\u5f97\u4e86\uff0c\u5c31\u4e0d\u4f1a\u8fd9\u4e48\u7ea0\u7ed3\u4e86\u3002 <\/p><\/div>\n<\/p><\/div>\n<\/li>\n

  • \n
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    \u8cc7\u6df1\u5927\u4f6c : cherryQWE <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u4e00\u4e2a InnoDB \u9875\u4e2d\u5b58\u50a8\u4e86\u4e00\u5806\u69fd\uff0c\u69fd\u8bb0\u5f55\u7684\u662f\u6bcf\u4e2a\u6570\u636e\u5757\u4e2d\u6700\u5c0f\u884c\u8bb0\u5f55\uff08\u6309\u67d0\u79cd\u65b9\u5f0f\u6392\u5e8f\uff1a\u4e3b\u952e\u6216\u8005\u7d22\u5f15\u952e\uff09\uff0c\u4f46\u662f\u6bcf\u4e2a\u69fd\u5bf9\u5e94\u4e00\u4e2a\u6570\u636e\u5757\uff0c\u8fd9\u4e2a\u6570\u636e\u5757\u91cc\u9762\u53c8\u6709\u5f88\u591a\u6570\u636e\u884c…. <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
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    \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : Cyshall <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @xsm1890 \u61c2\u4e86\u61c2\u4e86\uff0c\u975e\u5e38\u611f\u8c22\u3002 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
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    \u8cc7\u6df1\u5927\u4f6c : louettagfh <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @xsm1890 \u4f60\u8fd9\u662f\u54ea\u91cc\u770b\u7684 InnoDB \u7684 B+ tree \u63d2\u5165\u4e00\u4e2a record \u53ea\u5360\u4e00\u4e2a Page, \u6ca1\u6709\u4ec0\u4e48\u5355\u72ec\u7684\u7d22\u5f15, \u7d22\u5f15\u5373\u6570\u636e. <\/div>\n<\/p><\/div>\n<\/li>\n
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    \u8cc7\u6df1\u5927\u4f6c : xsm1890 <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @louettagfh \u6ca1\u9519\uff0c\u53ef\u4ee5\u8bf4\u7d22\u5f15\u65e2\u6570\u3002\u603b\u7ed3\u8fd9\u53e5\u8bdd\u7684\u4eba\u7684\u610f\u601d\u662f innodb \u7684\u6570\u636e\u6587\u4ef6\u7d22\u5f15\u548c\u6570\u636e\u662f\u5728\u540c\u4e00\u4e2a\u6587\u4ef6\u4e2d\uff08\u65e2 table_name.ibd \u6587\u4ef6\uff09\uff0c\u800c\u4e0d\u662f\u50cf myisam \u4e00\u6837\u6709\u5355\u72ec\u7684\u7d22\u5f15\u6570\u636e\u6587\u4ef6\uff08 table_name.MYI \uff09\uff0c\u66f4\u4e0d\u662f\u4f60\u7406\u89e3\u7684\u90a3\u6837\u6ca1\u6709\u5355\u72ec\u7684\u7d22\u5f15\u3002\u6211\u6240\u8bf4\u7684\u9875\u5305\u542b\u805a\u7c07\u7d22\u5f15\u53ca\u4e0b\u4e00\u4e2a\u9875\u5305\u542b\u4e00\u6761\u6570\u636e\uff0c\u662f table_name.ibd \u6587\u4ef6\u7684\u5185\u90e8\u6570\u636e\u7ec4\u7ec7\u65b9\u5f0f\uff0c\u6728\u6709\u4efb\u4f55\u95ee\u9898\u3002 <\/div>\n<\/p><\/div>\n<\/li>\n
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    \u8cc7\u6df1\u5927\u4f6c : louettagfh <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @xsm1890 \u8fd9\u662f B+ tree \u7684\u7ec4\u7ec7\u65b9\u5f0f\uff0c\u548c .ibd \u6ca1\u6709\u5173\u7cfb. <\/div>\n<\/p><\/div>\n<\/li>\n
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    \u8cc7\u6df1\u5927\u4f6c : xsm1890 <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @louettagfh \u90a3 B+ tree \u603b\u5f97\u5b58\u5728\u78c1\u76d8\u4e0a\u5427\uff1f <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n","protected":false},"excerpt":{"rendered":"

    \u5173\u4e8e mysql \u7684\u9875\u9501 \u8cc7\u6df1\u5927\u4f6c…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[],"tags":[],"_links":{"self":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/232846"}],"collection":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=232846"}],"version-history":[{"count":0,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/232846\/revisions"}],"wp:attachment":[{"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=232846"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=232846"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=232846"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}