{"id":476157,"date":"2023-08-09T07:26:52","date_gmt":"2023-08-09T07:26:52","guid":{"rendered":""},"modified":"2023-09-05T11:12:09","modified_gmt":"2023-09-05T11:12:09","slug":"cache-miss","status":"publish","type":"wiki","link":"https:\/\/oneproxy.pro\/cn\/wiki\/cache-miss\/","title":{"rendered":"\u7f13\u5b58\u672a\u547d\u4e2d"},"content":{"rendered":"

\u7f13\u5b58\u672a\u547d\u4e2d\u662f\u8ba1\u7b97\u673a\u79d1\u5b66\u4e2d\u7684\u4e00\u4e2a\u91cd\u8981\u6982\u5ff5\uff0c\u5728\u63d0\u9ad8\u5404\u79cd\u7cfb\u7edf\uff08\u5305\u62ec\u4ee3\u7406\u670d\u52a1\u5668\uff09\u7684\u6027\u80fd\u65b9\u9762\u53d1\u6325\u7740\u91cd\u8981\u4f5c\u7528\u3002\u5b83\u6307\u7684\u662f\u8bf7\u6c42\u7684\u6570\u636e\u672a\u5728\u7f13\u5b58\u4e2d\u627e\u5230\uff0c\u9700\u8981\u4ece\u4e3b\u5185\u5b58\u6216\u5b58\u50a8\u4e2d\u83b7\u53d6\uff0c\u4ece\u800c\u4ea7\u751f\u989d\u5916\u5ef6\u8fdf\u7684\u60c5\u51b5\u3002\u7f13\u5b58\u672a\u547d\u4e2d\u4f1a\u5bf9\u6570\u636e\u68c0\u7d22\u8fc7\u7a0b\u7684\u6574\u4f53\u6548\u7387\u548c\u901f\u5ea6\u4ea7\u751f\u91cd\u5927\u5f71\u54cd\uff0c\u4f7f\u5176\u6210\u4e3a\u7cfb\u7edf\u4f18\u5316\u7684\u4e00\u4e2a\u91cd\u8981\u65b9\u9762\u3002<\/p>\n

Cache miss \u7684\u8d77\u6e90\u5386\u53f2\u4ee5\u53ca\u7b2c\u4e00\u6b21\u88ab\u63d0\u53ca<\/h2>\n

\u7f13\u5b58\u7684\u6982\u5ff5\u53ef\u4ee5\u8ffd\u6eaf\u5230 20 \u4e16\u7eaa 60 \u5e74\u4ee3\uff0c\u5f53\u65f6\u65e9\u671f\u7684\u8ba1\u7b97\u673a\u7cfb\u7edf\u5f00\u59cb\u53d1\u73b0\u5904\u7406\u5668\u548c\u5185\u5b58\u4e4b\u95f4\u5b58\u5728\u76f8\u5f53\u5927\u7684\u6027\u80fd\u5dee\u8ddd\u3002\u4e3a\u4e86\u5f25\u8865\u8fd9\u4e00\u5dee\u8ddd\uff0c\u5f15\u5165\u4e86\u7f13\u5b58\uff0c\u4f5c\u4e3a\u4e00\u79cd\u66f4\u5c0f\u3001\u66f4\u5feb\u7684\u5185\u5b58\u7ec4\u4ef6\uff0c\u7528\u4e8e\u5b58\u50a8\u7ecf\u5e38\u8bbf\u95ee\u7684\u6570\u636e\u3002\u968f\u7740\u57fa\u4e8e\u7f13\u5b58\u7684\u5185\u5b58\u7cfb\u7edf\u7684\u53d1\u5c55\uff0c\u201c\u7f13\u5b58\u672a\u547d\u4e2d\u201d\u4e00\u8bcd\u5728 20 \u4e16\u7eaa 70 \u5e74\u4ee3\u521d\u51fa\u73b0\u3002<\/p>\n

\u6709\u5173\u7f13\u5b58\u672a\u547d\u4e2d\u7684\u8be6\u7ec6\u4fe1\u606f\u3002\u6269\u5c55\u7f13\u5b58\u672a\u547d\u4e2d\u4e3b\u9898\u3002<\/h2>\n

\u5f53\u53d1\u751f\u7f13\u5b58\u672a\u547d\u4e2d\u65f6\uff0cCPU \u6216\u7cfb\u7edf\u7684\u5904\u7406\u5355\u5143\u65e0\u6cd5\u5728\u5176\u7f13\u5b58\u4e2d\u627e\u5230\u6240\u8bf7\u6c42\u7684\u6570\u636e\u3002 \u56e0\u6b64\uff0c\u5b83\u5fc5\u987b\u4ece\u4e3b\u5b58\u50a8\u5668\u6216\u5916\u90e8\u5b58\u50a8\u5668\u4e2d\u83b7\u53d6\u6570\u636e\uff0c\u4ece\u800c\u5bfc\u81f4\u8bbf\u95ee\u65f6\u95f4\u548c\u5ef6\u8fdf\u589e\u52a0\u3002 \u7f13\u5b58\u672a\u547d\u4e2d\u53ef\u80fd\u7531\u4e8e\u591a\u79cd\u539f\u56e0\u800c\u53d1\u751f\uff0c\u4f8b\u5982\uff1a<\/p>\n

    \n
  1. \n

    \u5f3a\u5236\u7f13\u5b58\u672a\u547d\u4e2d\uff1a<\/strong> \u8fd9\u79cd\u60c5\u51b5\u53d1\u751f\u5728\u7b2c\u4e00\u6b21\u8bbf\u95ee\u67d0\u4e2a\u6570\u636e\u9879\u65f6\uff0c\u8be5\u6570\u636e\u9879\u4e0d\u5728\u7f13\u5b58\u4e2d\u3002\u7531\u4e8e\u7f13\u5b58\u5728\u5f00\u59cb\u65f6\u662f\u7a7a\u7684\uff0c\u56e0\u6b64\u521d\u59cb\u8bbf\u95ee\u5c06\u59cb\u7ec8\u5bfc\u81f4\u7f13\u5b58\u672a\u547d\u4e2d\u3002<\/p>\n<\/li>\n

  2. \n

    \u5bb9\u91cf\u7f13\u5b58\u672a\u547d\u4e2d\uff1a<\/strong> \u5f53\u7f13\u5b58\u5df2\u6ee1\uff0c\u9700\u8981\u7528\u65b0\u6761\u76ee\u66ff\u6362\u73b0\u6709\u6761\u76ee\u65f6\uff0c\u5c31\u4f1a\u53d1\u751f\u5bb9\u91cf\u7f13\u5b58\u672a\u547d\u4e2d\u3002\u9891\u7e41\u8bbf\u95ee\u7684\u6570\u636e\u53ef\u80fd\u4f1a\u4ece\u7f13\u5b58\u4e2d\u9010\u51fa\uff0c\u4ece\u800c\u5bfc\u81f4\u66f4\u591a\u672a\u547d\u4e2d\u3002<\/p>\n<\/li>\n

  3. \n

    \u51b2\u7a81\u7f13\u5b58\u672a\u547d\u4e2d\uff1a<\/strong> \u4e5f\u79f0\u4e3a\u51b2\u7a81\u7f13\u5b58\u672a\u547d\u4e2d\uff0c\u5f53\u591a\u4e2a\u6570\u636e\u9879\u4e89\u593a\u540c\u4e00\u4e2a\u7f13\u5b58\u69fd\u65f6\uff0c\u8fd9\u79cd\u60c5\u51b5\u4f1a\u53d1\u751f\u5728\u76f4\u63a5\u6620\u5c04\u7f13\u5b58\u6216\u7ec4\u76f8\u8054\u7f13\u5b58\u4e2d\uff0c\u4ece\u800c\u5bfc\u81f4\u51b2\u7a81\u548c\u7f13\u5b58\u9a71\u9010\u3002<\/p>\n<\/li>\n

  4. \n

    \u4e00\u81f4\u6027\u7f13\u5b58\u672a\u547d\u4e2d\uff1a<\/strong> \u5728\u5177\u6709\u5171\u4eab\u7f13\u5b58\u7684\u591a\u5904\u7406\u5668\u7cfb\u7edf\u4e2d\uff0c\u5f53\u4e00\u4e2a\u5904\u7406\u5668\u9700\u8981\u83b7\u53d6\u5df2\u88ab\u53e6\u4e00\u4e2a\u5904\u7406\u5668\u4fee\u6539\u7684\u6570\u636e\u65f6\uff0c\u5c31\u4f1a\u53d1\u751f\u4e00\u81f4\u6027\u672a\u547d\u4e2d\u3002<\/p>\n<\/li>\n<\/ol>\n

    \u7f13\u5b58\u672a\u547d\u4e2d\u4f1a\u4e25\u91cd\u5f71\u54cd\u5404\u79cd\u5e94\u7528\u7a0b\u5e8f\u7684\u6027\u80fd\uff0c\u5c24\u5176\u662f\u5728\u9ad8\u6570\u636e\u541e\u5410\u91cf\u548c\u4f4e\u5ef6\u8fdf\u8bbf\u95ee\u81f3\u5173\u91cd\u8981\u7684\u573a\u666f\u4e2d\uff0c\u4f8b\u5982\u5728 Web \u670d\u52a1\u5668\u548c\u4ee3\u7406\u670d\u52a1\u5668\u4e2d\u3002<\/p>\n

    Cache \u672a\u547d\u4e2d\u7684\u5185\u90e8\u7ed3\u6784\u3002Cache \u672a\u547d\u4e2d\u7684\u5de5\u4f5c\u539f\u7406\u3002<\/h2>\n

    \u7f13\u5b58\u672a\u547d\u4e2d\u673a\u5236\u4e0e\u7f13\u5b58\u7684\u7ec4\u7ec7\u5bc6\u5207\u76f8\u5173\u3002\u7f13\u5b58\u901a\u5e38\u4ee5\u591a\u4e2a\u7ea7\u522b\u8fd0\u884c\uff0c\u6bcf\u4e2a\u7ea7\u522b\u7684\u5927\u5c0f\u3001\u8bbf\u95ee\u901f\u5ea6\u548c\u4e0e\u5904\u7406\u5668\u7684\u63a5\u8fd1\u7a0b\u5ea6\u90fd\u4e0d\u540c\u3002\u5f53\u53d1\u751f\u7f13\u5b58\u672a\u547d\u4e2d\u65f6\uff0cCPU \u4f1a\u9075\u5faa\u7279\u5b9a\u8fc7\u7a0b\u6765\u68c0\u7d22\u6240\u9700\u6570\u636e\uff1a<\/p>\n

      \n
    1. \n

      \u7f13\u5b58\u5c42\u6b21\u7ed3\u6784\uff1a<\/strong> \u73b0\u4ee3\u8ba1\u7b97\u673a\u7cfb\u7edf\u91c7\u7528\u591a\u7ea7\u7f13\u5b58\u5c42\u6b21\u7ed3\u6784\uff0c\u5305\u62ec L1\u3001L2\u3001L3 \u7f13\u5b58\uff0c\u6709\u65f6\u751a\u81f3\u66f4\u9ad8\u3002L1 \u7f13\u5b58\u6700\u5c0f\u4f46\u901f\u5ea6\u6700\u5feb\uff0c\u4f4d\u4e8e\u6700\u9760\u8fd1\u5904\u7406\u5668\u7684\u4f4d\u7f6e\uff0c\u800c L3 \u7f13\u5b58\u8f83\u5927\u4f46\u901f\u5ea6\u8f83\u6162\uff0c\u4f4d\u4e8e\u8f83\u8fdc\u7684\u4f4d\u7f6e\u3002<\/p>\n<\/li>\n

    2. \n

      \u7f13\u5b58\u884c\u83b7\u53d6\uff1a<\/strong> \u5f53 L1 \u7f13\u5b58\u4e2d\u53d1\u751f\u7f13\u5b58\u672a\u547d\u4e2d\u65f6\uff0cCPU \u4f1a\u5411\u4e0b\u4e00\u7ea7\u7f13\u5b58\u6216\u4e3b\u5b58\u50a8\u5668\u53d1\u9001\u8bf7\u6c42\uff0c\u4ee5\u83b7\u53d6\u5305\u542b\u6240\u8bf7\u6c42\u6570\u636e\u9879\u7684\u66f4\u5927\u6570\u636e\u5757\uff08\u79f0\u4e3a\u7f13\u5b58\u884c\uff09\u3002<\/p>\n<\/li>\n

    3. \n

      \u7f13\u5b58\u884c\u653e\u7f6e\uff1a<\/strong> \u7136\u540e\u5c06\u83b7\u53d6\u7684\u7f13\u5b58\u884c\u653e\u5165\u7f13\u5b58\u4e2d\uff0c\u53ef\u80fd\u901a\u8fc7\u5404\u79cd\u66ff\u6362\u7b97\u6cd5\uff08\u4f8b\u5982 LRU\uff08\u6700\u8fd1\u6700\u5c11\u4f7f\u7528\uff09\u6216 LFU\uff08\u6700\u4e0d\u9891\u7e41\u4f7f\u7528\uff09\uff09\u53d6\u4ee3\u73b0\u6709\u7684\u7f13\u5b58\u884c\u3002<\/p>\n<\/li>\n

    4. \n

      \u672a\u6765\u53c2\u8003\uff1a<\/strong> \u5728\u67d0\u4e9b\u7f13\u5b58\u67b6\u6784\u4e2d\uff0c\u786c\u4ef6\u9884\u53d6\u673a\u5236\u4f1a\u9884\u6d4b\u5e76\u83b7\u53d6\u8fd1\u671f\u53ef\u80fd\u8bbf\u95ee\u7684\u6570\u636e\uff0c\u4ece\u800c\u51cf\u5c11\u7f13\u5b58\u672a\u547d\u4e2d\u7684\u5f71\u54cd\u3002<\/p>\n<\/li>\n<\/ol>\n

      Cache miss\u7684\u5173\u952e\u7279\u5f81\u5206\u6790\u3002<\/h2>\n

      \u7f13\u5b58\u672a\u547d\u4e2d\u5177\u6709\u51e0\u4e2a\u5173\u952e\u7279\u5f81\uff0c\u5bf9\u4e8e\u7406\u89e3\u5176\u5bf9\u7cfb\u7edf\u6027\u80fd\u7684\u5f71\u54cd\u81f3\u5173\u91cd\u8981\uff1a<\/p>\n

        \n
      1. \n

        \u5ef6\u8fdf\u5f71\u54cd\uff1a<\/strong> \u7f13\u5b58\u672a\u547d\u4e2d\u4f1a\u7ed9\u5185\u5b58\u8bbf\u95ee\u5e26\u6765\u989d\u5916\u7684\u5ef6\u8fdf\uff0c\u8fd9\u5bf9\u5b9e\u65f6\u5e94\u7528\u7a0b\u5e8f\u548c\u5177\u6709\u4e25\u683c\u6027\u80fd\u8981\u6c42\u7684\u7cfb\u7edf\u9020\u6210\u4e0d\u5229\u5f71\u54cd\u3002<\/p>\n<\/li>\n

      2. \n

        \u6027\u80fd\u6743\u8861\uff1a<\/strong> \u7f13\u5b58\u5927\u5c0f\u3001\u7ec4\u7ec7\u548c\u66ff\u6362\u7b56\u7565\u4f1a\u5f71\u54cd\u547d\u4e2d\u7387\u548c\u672a\u547d\u4e2d\u60e9\u7f5a\u4e4b\u95f4\u7684\u6743\u8861\u3002\u589e\u52a0\u7f13\u5b58\u5927\u5c0f\u53ef\u4ee5\u964d\u4f4e\u672a\u547d\u4e2d\u7387\uff0c\u4f46\u4e5f\u4f1a\u589e\u52a0\u8bbf\u95ee\u5ef6\u8fdf\u3002<\/p>\n<\/li>\n

      3. \n

        \u7a7a\u95f4\u548c\u65f6\u95f4\u5c40\u90e8\u6027\uff1a<\/strong> \u7f13\u5b58\u672a\u547d\u4e2d\u53d7\u7a7a\u95f4\u548c\u65f6\u95f4\u5c40\u90e8\u6027\u539f\u5219\u7684\u5f71\u54cd\u3002\u7a7a\u95f4\u5c40\u90e8\u6027\u662f\u6307\u8bbf\u95ee\u9760\u8fd1\u6700\u8fd1\u8bbf\u95ee\u7684\u6570\u636e\u9879\uff0c\u800c\u65f6\u95f4\u5c40\u90e8\u6027\u662f\u6307\u5728\u4e0d\u4e45\u7684\u5c06\u6765\u518d\u6b21\u8bbf\u95ee\u540c\u4e00\u6570\u636e\u9879\u3002<\/p>\n<\/li>\n

      4. \n

        \u5de5\u4f5c\u91cf\u654f\u611f\u5ea6\uff1a<\/strong> \u7f13\u5b58\u672a\u547d\u4e2d\u7684\u5f71\u54cd\u56e0\u5de5\u4f5c\u8d1f\u8f7d\u548c\u8bbf\u95ee\u6a21\u5f0f\u800c\u5f02\u3002\u67d0\u4e9b\u5e94\u7528\u7a0b\u5e8f\u53ef\u80fd\u56e0\u5176\u5185\u5b58\u8bbf\u95ee\u7279\u6027\u800c\u8868\u73b0\u51fa\u66f4\u9ad8\u7684\u7f13\u5b58\u672a\u547d\u4e2d\u7387\u3002<\/p>\n<\/li>\n<\/ol>\n

        \u7f13\u5b58\u672a\u547d\u4e2d\u7684\u7c7b\u578b<\/p>\n

        \u6839\u636e\u7f13\u5b58\u672a\u547d\u4e2d\u7684\u539f\u56e0\u548c\u7cfb\u7edf\u67b6\u6784\uff0c\u7f13\u5b58\u672a\u547d\u4e2d\u53ef\u5206\u4e3a\u591a\u79cd\u7c7b\u578b\u3002\u5e38\u89c1\u7684\u7f13\u5b58\u672a\u547d\u4e2d\u7c7b\u578b\u5305\u62ec\uff1a<\/p>\n\n\n\n\n\n\n\n\n
        \u7f13\u5b58\u672a\u547d\u4e2d\u7c7b\u578b<\/strong><\/th>\n\u63cf\u8ff0<\/strong><\/th>\n<\/tr>\n<\/thead>\n
        \u5f3a\u5236\u7f13\u5b58\u672a\u547d\u4e2d<\/td>\n\u5f53\u7b2c\u4e00\u6b21\u8bbf\u95ee\u6570\u636e\u9879\u4e14\u8be5\u6570\u636e\u9879\u4e0d\u5728\u7f13\u5b58\u4e2d\u65f6\u53d1\u751f\u3002<\/td>\n<\/tr>\n
        \u5bb9\u91cf\u7f13\u5b58\u672a\u547d\u4e2d<\/td>\n\u5f53\u7f13\u5b58\u5df2\u6ee1\u5e76\u4e14\u9700\u8981\u7528\u65b0\u6761\u76ee\u66ff\u6362\u73b0\u6709\u6761\u76ee\u65f6\uff0c\u4f1a\u53d1\u751f\u8fd9\u79cd\u60c5\u51b5\u3002<\/td>\n<\/tr>\n
        \u51b2\u7a81\u7f13\u5b58\u672a\u547d\u4e2d<\/td>\n\u5f53\u591a\u4e2a\u6570\u636e\u9879\u4e89\u593a\u540c\u4e00\u4e2a\u7f13\u5b58\u69fd\u65f6\u53d1\u751f\uff0c\u4ece\u800c\u5bfc\u81f4\u51b2\u7a81\u548c\u7f13\u5b58\u9a71\u9010\u3002<\/td>\n<\/tr>\n
        \u4e00\u81f4\u6027\u7f13\u5b58\u672a\u547d\u4e2d<\/td>\n\u5f53\u4e00\u4e2a\u5904\u7406\u5668\u9700\u8981\u83b7\u53d6\u88ab\u53e6\u4e00\u4e2a\u5904\u7406\u5668\u4fee\u6539\u7684\u6570\u636e\u65f6\uff0c\u5728\u5177\u6709\u5171\u4eab\u7f13\u5b58\u7684\u591a\u5904\u7406\u5668\u7cfb\u7edf\u4e2d\u5c31\u4f1a\u53d1\u751f\u8fd9\u79cd\u60c5\u51b5\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

        Cache miss\u7684\u4f7f\u7528\u65b9\u6cd5\uff0c\u4f7f\u7528\u4e2d\u9047\u5230\u7684\u95ee\u9898\u53ca\u5176\u89e3\u51b3\u65b9\u6cd5\u3002<\/h2>\n

        \u53ef\u4ee5\u4f7f\u7528\u5404\u79cd\u6280\u672f\u6765\u7ba1\u7406\u548c\u7f13\u89e3\u7f13\u5b58\u672a\u547d\u4e2d\uff1a<\/p>\n

          \n
        1. \n

          \u7f13\u5b58\u8c03\u6574\uff1a<\/strong> \u9002\u5f53\u7684\u7f13\u5b58\u8c03\u6574\u5305\u62ec\u8c03\u6574\u7f13\u5b58\u5927\u5c0f\u3001\u5173\u8054\u6027\u548c\u66ff\u6362\u7b56\u7565\uff0c\u4ee5\u6700\u9002\u5408\u5e94\u7528\u7a0b\u5e8f\u7684\u5de5\u4f5c\u8d1f\u8f7d\u548c\u8bbf\u95ee\u6a21\u5f0f\u3002<\/p>\n<\/li>\n

        2. \n

          \u9884\u53d6\uff1a<\/strong> \u786c\u4ef6\u9884\u53d6\u6280\u672f\u53ef\u4ee5\u9884\u6d4b\u6570\u636e\u9700\u6c42\u5e76\u5728\u660e\u786e\u8bbf\u95ee\u4e4b\u524d\u5c06\u5176\u63d0\u53d6\u5230\u7f13\u5b58\u4e2d\uff0c\u4ece\u800c\u51cf\u5c11\u7f13\u5b58\u672a\u547d\u4e2d\u3002<\/p>\n<\/li>\n

        3. \n

          \u8f6f\u4ef6\u4f18\u5316\uff1a<\/strong> \u5f00\u53d1\u4eba\u5458\u53ef\u4ee5\u901a\u8fc7\u6539\u5584\u7a7a\u95f4\u548c\u65f6\u95f4\u5c40\u90e8\u6027\u3001\u51cf\u5c11\u6570\u636e\u4f9d\u8d56\u6027\u4ee5\u53ca\u4f7f\u7528\u4e0e\u7f13\u5b58\u884c\u5927\u5c0f\u76f8\u5339\u914d\u7684\u6570\u636e\u7ed3\u6784\u6765\u4f18\u5316\u4ee3\u7801\uff0c\u4ee5\u6700\u5927\u9650\u5ea6\u5730\u51cf\u5c11\u7f13\u5b58\u672a\u547d\u4e2d\u3002<\/p>\n<\/li>\n

        4. \n

          \u7f13\u5b58\u5c42\u6b21\u7ed3\u6784\uff1a<\/strong> \u591a\u7ea7\u7f13\u5b58\u5c42\u6b21\u7ed3\u6784\u53ef\u4ee5\u901a\u8fc7\u4f18\u5148\u5904\u7406\u7ecf\u5e38\u8bbf\u95ee\u7684\u6570\u636e\u5e76\u51cf\u5c11\u4e0d\u540c\u7f13\u5b58\u7ea7\u522b\u4e4b\u95f4\u7684\u4e89\u7528\u6765\u5e2e\u52a9\u964d\u4f4e\u603b\u4f53\u7f13\u5b58\u672a\u547d\u4e2d\u7387\u3002<\/p>\n<\/li>\n

        5. \n

          \u975e\u963b\u585e\u7f13\u5b58\uff1a<\/strong> \u975e\u963b\u585e\u6216\u65e0\u51b2\u7a81\u7f13\u5b58\u53ef\u4ee5\u901a\u8fc7\u5141\u8bb8\u540c\u65f6\u8bfb\u53d6\u6216\u5199\u5165\u591a\u4e2a\u7f13\u5b58\u884c\u6765\u7f13\u89e3\u51b2\u7a81\u7f13\u5b58\u672a\u547d\u4e2d\u3002<\/p>\n<\/li>\n<\/ol>\n

          \u4ee5\u8868\u683c\u548c\u5217\u8868\u7684\u5f62\u5f0f\u5217\u51fa\u4e3b\u8981\u7279\u5f81\u4ee5\u53ca\u4e0e\u7c7b\u4f3c\u672f\u8bed\u7684\u5176\u4ed6\u6bd4\u8f83\u3002<\/h2>\n\n\n\n\n\n\n\n\n\n
          \u7279\u5f81<\/strong><\/th>\n\u7f13\u5b58\u672a\u547d\u4e2d<\/strong><\/th>\n\u7f13\u5b58\u547d\u4e2d<\/strong><\/th>\n<\/tr>\n<\/thead>\n
          \u5b9a\u4e49<\/td>\n\u5728\u7f13\u5b58\u4e2d\u672a\u627e\u5230\u8bf7\u6c42\u7684\u6570\u636e\u3002<\/td>\n\u5728\u7f13\u5b58\u4e2d\u627e\u5230\u4e86\u8bf7\u6c42\u7684\u6570\u636e\u3002<\/td>\n<\/tr>\n
          \u5bf9\u6027\u80fd\u7684\u5f71\u54cd<\/td>\n\u589e\u52a0\u5ef6\u8fdf\u548c\u8bbf\u95ee\u65f6\u95f4\u3002<\/td>\n\u51cf\u5c11\u5ef6\u8fdf\u548c\u8bbf\u95ee\u65f6\u95f4\u3002<\/td>\n<\/tr>\n
          \u6548\u7387\u76ee\u6807<\/td>\n\u5c3d\u91cf\u51cf\u5c11\u7f13\u5b58\u672a\u547d\u4e2d\u4ee5\u63d0\u9ad8\u6027\u80fd\u3002<\/td>\n\u6700\u5927\u5316\u7f13\u5b58\u547d\u4e2d\u7387\u4ee5\u63d0\u9ad8\u6027\u80fd\u3002<\/td>\n<\/tr>\n
          \u9891\u7387<\/td>\n\u6839\u636e\u5de5\u4f5c\u91cf\uff0c\u53ef\u4ee5\u5b9a\u671f\u53d1\u751f\u3002<\/td>\n\u9884\u8ba1\u5728\u4f18\u5316\u826f\u597d\u7684\u7cfb\u7edf\u4e2d\u7ecf\u5e38\u51fa\u73b0\u3002<\/td>\n<\/tr>\n
          \u89e3\u51b3\u65b9\u6848<\/td>\n\u7f13\u5b58\u8c03\u6574\u3001\u9884\u53d6\u3001\u8f6f\u4ef6\u4f18\u5316\u3002<\/td>\n\u7f13\u5b58\u5c42\u6b21\u7ed3\u6784\u3001\u66ff\u6362\u7b56\u7565\u3001\u786c\u4ef6\u9884\u53d6\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

          \u4e0e\u7f13\u5b58\u672a\u547d\u4e2d\u76f8\u5173\u7684\u672a\u6765\u89c2\u70b9\u548c\u6280\u672f\u3002<\/h2>\n

          \u968f\u7740\u6280\u672f\u7684\u8fdb\u6b65\uff0c\u4eba\u4eec\u6b63\u5728\u52aa\u529b\u8fdb\u4e00\u6b65\u4f18\u5316\u7f13\u5b58\u7cfb\u7edf\u5e76\u6700\u5927\u9650\u5ea6\u5730\u51cf\u5c11\u7f13\u5b58\u672a\u547d\u4e2d\u3002\u4e00\u4e9b\u672a\u6765\u7684\u89c2\u70b9\u548c\u6280\u672f\u5305\u62ec\uff1a<\/p>\n

            \n
          1. \n

            \u66f4\u667a\u80fd\u7684\u66f4\u6362\u653f\u7b56\uff1a<\/strong> \u5229\u7528\u673a\u5668\u5b66\u4e60\u548c\u4eba\u5de5\u667a\u80fd\u6839\u636e\u5e94\u7528\u7a0b\u5e8f\u884c\u4e3a\u548c\u8bbf\u95ee\u6a21\u5f0f\u52a8\u6001\u8c03\u6574\u7f13\u5b58\u66ff\u6362\u7b56\u7565\u3002<\/p>\n<\/li>\n

          2. \n

            \u786c\u4ef6\u548c\u8f6f\u4ef6\u534f\u540c\u8bbe\u8ba1\uff1a<\/strong> \u786c\u4ef6\u548c\u8f6f\u4ef6\u5f00\u53d1\u4eba\u5458\u4e4b\u95f4\u7684\u534f\u4f5c\u8bbe\u8ba1\uff0c\u4ee5\u521b\u5efa\u66f4\u7b26\u5408\u73b0\u4ee3\u5e94\u7528\u7a0b\u5e8f\u8981\u6c42\u7684\u7f13\u5b58\u67b6\u6784\u3002<\/p>\n<\/li>\n

          3. \n

            \u7f13\u5b58\u538b\u7f29\uff1a<\/strong> \u538b\u7f29\u7f13\u5b58\u4e2d\u7684\u6570\u636e\u7684\u6280\u672f\uff0c\u4ee5\u4fbf\u5728\u7ed9\u5b9a\u7684\u7f13\u5b58\u5927\u5c0f\u5185\u5bb9\u7eb3\u66f4\u591a\u4fe1\u606f\uff0c\u4ece\u800c\u6f5c\u5728\u5730\u51cf\u5c11\u7f13\u5b58\u672a\u547d\u4e2d\u3002<\/p>\n<\/li>\n

          4. \n

            \u6301\u4e45\u5185\u5b58\u7f13\u5b58\uff1a<\/strong> \u5c06\u6301\u4e45\u6027\u5185\u5b58\u6280\u672f\u96c6\u6210\u5230\u7f13\u5b58\u5c42\u6b21\u7ed3\u6784\u4e2d\uff0c\u4ee5\u63d0\u4f9b\u66f4\u597d\u7684\u6570\u636e\u6301\u4e45\u6027\u5e76\u51cf\u5c11\u7f13\u5b58\u672a\u547d\u4e2d\u7684\u635f\u5931\u3002<\/p>\n<\/li>\n<\/ol>\n

            \u4ee3\u7406\u670d\u52a1\u5668\u5982\u4f55\u4f7f\u7528\u6216\u4e0e\u7f13\u5b58\u672a\u547d\u4e2d\u76f8\u5173\u3002<\/h2>\n

            \u4ee3\u7406\u670d\u52a1\u5668\u5145\u5f53\u5ba2\u6237\u7aef\u548c Web \u670d\u52a1\u5668\u4e4b\u95f4\u7684\u4e2d\u4ecb\uff0c\u8f6c\u53d1\u5ba2\u6237\u7aef\u8bf7\u6c42\u5e76\u7f13\u5b58\u7ecf\u5e38\u8bbf\u95ee\u7684\u5185\u5bb9\u4ee5\u7f29\u77ed\u54cd\u5e94\u65f6\u95f4\u3002\u7f13\u5b58\u672a\u547d\u4e2d\u5bf9\u4ee3\u7406\u670d\u52a1\u5668\u7684\u6027\u80fd\u81f3\u5173\u91cd\u8981\uff0c\u56e0\u4e3a\u5b83\u51b3\u5b9a\u4e86\u4ee3\u7406\u5fc5\u987b\u591a\u4e45\u8bbf\u95ee\u4e00\u6b21\u539f\u59cb\u670d\u52a1\u5668\u4ee5\u83b7\u53d6\u65b0\u5185\u5bb9\u3002<\/p>\n

            \u4ee3\u7406\u670d\u52a1\u5668\u53ef\u4ee5\u901a\u8fc7\u591a\u79cd\u65b9\u5f0f\u5229\u7528\u7f13\u5b58\u672a\u547d\u4e2d\uff1a<\/p>\n

              \n
            1. \n

              \u7f13\u5b58\u5b58\u50a8\uff1a<\/strong> \u4ee3\u7406\u670d\u52a1\u5668\u7ef4\u62a4\u4e00\u4e2a\u7f13\u5b58\u6765\u5b58\u50a8\u6240\u8bf7\u6c42\u7684\u7f51\u9875\u53ca\u5176\u76f8\u5173\u8d44\u6e90\u3002\u5f53\u6240\u8bf7\u6c42\u7684\u5185\u5bb9\u4e0d\u5728\u7f13\u5b58\u4e2d\u65f6\uff0c\u5c31\u4f1a\u53d1\u751f\u7f13\u5b58\u672a\u547d\u4e2d\uff0c\u4ece\u800c\u4fc3\u4f7f\u4ee3\u7406\u4ece\u539f\u59cb\u670d\u52a1\u5668\u83b7\u53d6\u8be5\u5185\u5bb9\u3002<\/p>\n<\/li>\n

            2. \n

              \u7f13\u5b58\u7b56\u7565\uff1a<\/strong> \u4ee3\u7406\u7ba1\u7406\u5458\u53ef\u4ee5\u5b9a\u4e49\u7f13\u5b58\u7b56\u7565\u6765\u786e\u5b9a\u5185\u5bb9\u5728\u7f13\u5b58\u4e2d\u4fdd\u7559\u591a\u957f\u65f6\u95f4\u624d\u4f1a\u88ab\u89c6\u4e3a\u8fc7\u671f\u3002\u8fd9\u4f1a\u5f71\u54cd\u7f13\u5b58\u672a\u547d\u4e2d\u7684\u9891\u7387\u548c\u4ee3\u7406\u63d0\u4f9b\u7684\u5185\u5bb9\u7684\u65b0\u9c9c\u5ea6\u3002<\/p>\n<\/li>\n

            3. \n

              \u8d1f\u8f7d\u5747\u8861\uff1a<\/strong> \u4e00\u4e9b\u4ee3\u7406\u670d\u52a1\u5668\u4f7f\u7528\u7f13\u5b58\u672a\u547d\u4e2d\u7387\u4f5c\u4e3a\u6307\u6807\uff0c\u5728\u591a\u4e2a\u540e\u7aef\u670d\u52a1\u5668\u4e4b\u95f4\u5206\u914d\u5ba2\u6237\u7aef\u8bf7\u6c42\uff0c\u4ece\u800c\u4f18\u5316\u8d1f\u8f7d\u5e73\u8861\u4ee5\u83b7\u5f97\u66f4\u597d\u7684\u6027\u80fd\u3002<\/p>\n<\/li>\n

            4. \n

              \u5185\u5bb9\u8fc7\u6ee4\uff1a<\/strong> \u4ee3\u7406\u670d\u52a1\u5668\u53ef\u4ee5\u4f7f\u7528\u7f13\u5b58\u672a\u547d\u4e2d\u6570\u636e\u6765\u8bc6\u522b\u6f5c\u5728\u7684\u5b89\u5168\u5a01\u80c1\u6216\u53ef\u7591\u6d3b\u52a8\uff0c\u4e3a\u5ba2\u6237\u7aef\u63d0\u4f9b\u989d\u5916\u7684\u4fdd\u62a4\u3002<\/p>\n<\/li>\n<\/ol>\n

              \u76f8\u5173\u94fe\u63a5<\/h2>\n

              \u6709\u5173\u7f13\u5b58\u672a\u547d\u4e2d\u7684\u66f4\u591a\u4fe1\u606f\uff0c\u8bf7\u8003\u8651\u63a2\u7d22\u4ee5\u4e0b\u8d44\u6e90\uff1a<\/p>\n

                \n
              1. \n

                \u7f13\u5b58\u672a\u547d\u4e2d\u548c\u547d\u4e2d<\/a> \u2013 \u7ef4\u57fa\u767e\u79d1\u9875\u9762\u8be6\u7ec6\u89e3\u91ca\u4e86\u7f13\u5b58\u672a\u547d\u4e2d\u548c\u547d\u4e2d\u6982\u5ff5\u3002<\/p>\n<\/li>\n

              2. \n

                \u4e86\u89e3\u7f13\u5b58\u672a\u547d\u4e2d<\/a> \u2013 \u5168\u9762\u6307\u5bfc\u60a8\u4e86\u89e3\u7f13\u5b58\u672a\u547d\u4e2d\u53ca\u5176\u5bf9\u6027\u80fd\u7684\u5f71\u54cd\u3002<\/p>\n<\/li>\n

              3. \n

                \u7f13\u5b58\u53ca\u5176\u91cd\u8981\u6027<\/a> \u2013 \u7f13\u5b58\u5185\u5b58\u7684\u521d\u5b66\u8005\u6307\u5357\u53ca\u5176\u5728\u73b0\u4ee3\u8ba1\u7b97\u673a\u7cfb\u7edf\u4e2d\u7684\u91cd\u8981\u6027\u3002<\/p>\n<\/li>\n

              4. \n

                \u7f13\u5b58\u672a\u547d\u4e2d\u6a21\u5f0f\u548c\u89e3\u51b3\u65b9\u6848<\/a> \u2013 \u4e00\u7bc7\u63a2\u8ba8\u7f13\u5b58\u672a\u547d\u4e2d\u6a21\u5f0f\u548c\u9ad8\u6548\u5185\u5b58\u8bbf\u95ee\u89e3\u51b3\u65b9\u6848\u7684\u5b66\u672f\u8bba\u6587\u3002<\/p>\n<\/li>\n<\/ol>","protected":false},"featured_media":476158,"menu_order":0,"template":"","meta":{"_acf_changed":false,"content-type":"","inline_featured_image":false,"footnotes":""},"class_list":["post-476157","wiki","type-wiki","status-publish","has-post-thumbnail","hentry"],"acf":{"faq_title":"Frequently Asked Questions about Cache miss: A Comprehensive Overview<\/mark>","faq_items":[{"question":"What is a cache miss?","answer":"

                A cache miss refers to a situation where the requested data is not found in the cache memory of a computer system or proxy server. When this happens, the system needs to fetch the data from the main memory or external storage, resulting in increased access time and latency.<\/p>"},{"question":"How does cache miss affect system performance?","answer":"

                Cache misses can significantly impact system performance, leading to increased latency and slower data retrieval. The frequency of cache misses can vary based on the workload and access patterns of the application. Proper cache tuning, prefetching, and software optimization are some of the techniques used to mitigate the impact of cache misses and improve overall system efficiency.<\/p>"},{"question":"What are the types of cache misses?","answer":"

                Cache misses can be classified into several types based on their causes and system architecture. The common types include:<\/p>

                1. Compulsory Cache Miss: Occurs when a data item is accessed for the first time and is not present in the cache.<\/p><\/li>

                2. Capacity Cache Miss: Happens when the cache is full and needs to replace an existing entry with a new one.<\/p><\/li>

                3. Conflict Cache Miss: Occurs when multiple data items vie for the same cache slot, resulting in conflicts and cache evictions.<\/p><\/li>

                4. Coherence Cache Miss: Happens in multiprocessor systems with shared caches when a processor needs to fetch data modified by another processor.<\/p><\/li><\/ol>"},{"question":"How can cache misses be minimized?","answer":"

                  To reduce cache misses and improve system performance, several strategies can be employed:<\/p>

                  1. Cache Tuning: Adjusting the cache size, associativity, and replacement policies to match the workload and access patterns of the application.<\/p><\/li>

                  2. Prefetching: Using hardware prefetching techniques to anticipate data needs and fetch them into the cache before they are explicitly accessed.<\/p><\/li>

                  3. Software Optimization: Optimizing code to improve spatial and temporal locality, reducing data dependencies, and using cache-friendly data structures.<\/p><\/li><\/ol>"},{"question":"How are proxy servers associated with cache misses?","answer":"

                    Proxy servers act as intermediaries between clients and web servers. They use cache miss data to store frequently accessed content and reduce response times. When a requested resource is not found in the cache, the proxy fetches it from the origin server, impacting overall performance.<\/p>"},{"question":"What does the future hold for cache miss technology?","answer":"

                    The future of cache miss technology involves smarter replacement policies, hardware and software co-design, cache compression, and the integration of persistent memory technologies. These advancements aim to further optimize cache systems and minimize cache misses, leading to even faster and more efficient data retrieval processes.<\/p>"}]},"_links":{"self":[{"href":"https:\/\/oneproxy.pro\/cn\/wp-json\/wp\/v2\/wiki\/476157","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/oneproxy.pro\/cn\/wp-json\/wp\/v2\/wiki"}],"about":[{"href":"https:\/\/oneproxy.pro\/cn\/wp-json\/wp\/v2\/types\/wiki"}],"version-history":[{"count":0,"href":"https:\/\/oneproxy.pro\/cn\/wp-json\/wp\/v2\/wiki\/476157\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/oneproxy.pro\/cn\/wp-json\/wp\/v2\/media\/476158"}],"wp:attachment":[{"href":"https:\/\/oneproxy.pro\/cn\/wp-json\/wp\/v2\/media?parent=476157"}],"curies":[{"name":"\u53ef\u6e7f\u6027\u7c89\u5242","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}