{"id":299707,"date":"2024-05-20T17:24:28","date_gmt":"2024-05-20T09:24:28","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/299707.html"},"modified":"2024-05-20T17:24:38","modified_gmt":"2024-05-20T09:24:38","slug":"linux%e9%87%8c%e9%9d%a2virt%e5%92%8cres%e4%bb%a3%e8%a1%a8%e4%bb%80%e4%b9%88%e6%84%8f%e6%80%9d","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/299707.html","title":{"rendered":"Linux\u91cc\u9762VIRT\u548cRES\u4ee3\u8868\u4ec0\u4e48\u610f\u601d"},"content":{"rendered":"<p style=\"text-align:center\"><img decoding=\"async\" src=\"https:\/\/cdn-kb.worktile.com\/kb\/wp-content\/uploads\/2024\/04\/27151818\/47e9de41-12f2-4d19-9793-d0a597ead755.webp\" alt=\"Linux\u91cc\u9762VIRT\u548cRES\u4ee3\u8868\u4ec0\u4e48\u610f\u601d\" \/><\/p>\n<p><p>\u5728Linux\u64cd\u4f5c\u7cfb\u7edf\u4e2d\uff0c\u5f53\u4f7f\u7528<code>top<\/code>\u6216\u8005\u5176\u4ed6\u7cfb\u7edf\u76d1\u63a7\u5de5\u5177\u67e5\u770b\u8fdb\u7a0b\u4fe1\u606f\u65f6\uff0c\u7ecf\u5e38\u4f1a\u9047\u5230\u4e24\u4e2a\u91cd\u8981\u7684\u5185\u5b58\u6307\u6807\uff1aVIRT\u548cRES\u3002<strong>VIRT\u4ee3\u8868\u865a\u62df\u5185\u5b58\u5927\u5c0f<\/strong>\u3001<strong>RES\u4ee3\u8868\u5e38\u9a7b\u5185\u5b58\uff08\u7269\u7406\u5185\u5b58\uff09\u5927\u5c0f<\/strong>\u3002\u865a\u62df\u5185\u5b58\uff08VIRT\uff09\u5305\u62ec\u8fdb\u7a0b\u6b63\u5728\u4f7f\u7528\u7684\u6240\u6709\u5185\u5b58\uff0c\u4e0d\u4ec5\u4ec5\u662f\u5360\u7528\u7684\u7269\u7406\u5185\u5b58\uff0c\u8fd8\u5305\u62ec\u4ea4\u6362\u7a7a\u95f4\u3001\u88ab\u6620\u5c04\u7684\u6587\u4ef6\u548c\u5ef6\u8fdf\u52a0\u8f7d\u7684\u5e93\u3002\u76f8\u5bf9\u5730\uff0c\u5e38\u9a7b\u5185\u5b58\uff08RES\uff09\u5219\u4e13\u6307\u5206\u914d\u7ed9\u8fdb\u7a0b\u5e76\u4e14\u5df2\u7ecf\u88ab\u52a0\u8f7d\u8fdb\u7269\u7406\u5185\u5b58\u7684\u90e8\u5206\u3002<\/p>\n<\/p>\n<p><h2>\u4e00\u3001VIRT\uff1a\u865a\u62df\u5185\u5b58\u5927\u5c0f<\/h2>\n<\/p>\n<p><p>VIRT\u5217\u7684\u503c\u662f\u6307\u8be5\u8fdb\u7a0b\u5bf9\u5e94\u7684\u865a\u62df\u5730\u5740\u7a7a\u95f4\u7684\u603b\u5927\u5c0f\uff0c\u5b83\u5305\u62ec\u4e86\u8fdb\u7a0b\u4f7f\u7528\u7684\u6240\u6709\u5185\u5b58\u7c7b\u578b\u3002\u8fd9\u4e0d\u4ec5\u4ec5\u5305\u62ec\u53ef\u6267\u884c\u4ee3\u7801\u3001\u5df2\u5206\u914d\u7684\u5806\u7a7a\u95f4\u3001\u6808\u3001\u5168\u5c40\u53d8\u91cf\u7b49\uff0c\u8fd8\u5305\u62ec\u4e86\u8fd8\u6ca1\u6709\u5b9e\u9645\u4f7f\u7528\uff08\u5373\u61d2\u52a0\u8f7d\uff09\u7684\u5e93\uff0c\u4ee5\u53ca\u8fdb\u7a0b\u53ef\u80fd\u7528\u5230\u7684\u5185\u6838\u7ed3\u6784\u7b49\u3002\u5176\u4e2d\u4e00\u4e2a\u91cd\u8981\u90e8\u5206\u662f\u865a\u62df\u5185\u5b58\u53ef\u80fd\u5305\u62ec\u4e86\u6620\u5c04\u6587\u4ef6\u7684\u7a7a\u95f4\u2014\u2014\u8fd9\u7c7b\u6587\u4ef6\u901a\u8fc7mmap\u7cfb\u7edf\u8c03\u7528\u6620\u5c04\u5230\u8fdb\u7a0b\u7684\u5730\u5740\u7a7a\u95f4\u4f46\u53ef\u80fd\u5e76\u672a\u5b8c\u5168\u8f7d\u5165\u7269\u7406\u5185\u5b58\u3002<\/p>\n<\/p>\n<p><h3>\u6620\u5c04\u6587\u4ef6\u4e0eVIRT<\/h3>\n<\/p>\n<p><p>\u6620\u5c04\u6587\u4ef6\u662f\u865a\u62df\u5185\u5b58\u7ba1\u7406\u4e2d\u7684\u4e00\u4e2a\u5173\u952e\u6982\u5ff5\u3002\u5b83\u5141\u8bb8\u6587\u4ef6\u76f4\u63a5\u6620\u5c04\u5230\u8fdb\u7a0b\u7684\u865a\u62df\u5730\u5740\u7a7a\u95f4\uff0c\u5bf9\u6587\u4ef6\u7684\u64cd\u4f5c\u53ef\u4ee5\u901a\u8fc7\u5185\u5b58\u64cd\u4f5c\u6765\u5b9e\u73b0\uff0c\u7b80\u5316\u8bfb\u5199\u64cd\u4f5c\u540c\u65f6\u53ef\u4ee5\u63d0\u9ad8\u6548\u7387\u3002\u8fd9\u79cd\u673a\u5236\u5728\u5904\u7406\u5927\u6587\u4ef6\u65f6\u7279\u522b\u6709\u7528\u3002VIRT\u7684\u5927\u5c0f\u4e2d\u5c31\u5305\u62ec\u4e86\u8fd9\u90e8\u5206\u6620\u5c04\u6587\u4ef6\u7684\u7a7a\u95f4\uff0c\u5c3d\u7ba1\u8fd9\u90e8\u5206\u7a7a\u95f4\u5e76\u4e0d\u5b8c\u5168\u5360\u7528\u7269\u7406\u5185\u5b58\uff0c\u4f46\u5b83\u5374\u6269\u5c55\u4e86\u8fdb\u7a0b\u5728\u903b\u8f91\u4e0a\u53ef\u7528\u7684\u5730\u5740\u7a7a\u95f4\u3002\u901a\u8fc7<code>top<\/code>\u547d\u4ee4\u89c2\u5bdf\u5230\u7684VIRT\u589e\u52a0\u53ef\u80fd\u662f\u7531\u5927\u91cf\u4f7f\u7528\u5185\u5b58\u6620\u5c04\u6587\u4ef6\u9020\u6210\u7684\uff0c\u5e76\u4e0d\u76f4\u63a5\u7b49\u540c\u4e8e\u8fdb\u7a0b\u6d88\u8017\u4e86\u540c\u7b49\u5927\u5c0f\u7684\u7269\u7406\u5185\u5b58\u3002<\/p>\n<\/p>\n<p><h2>\u4e8c\u3001RES\uff1a\u5e38\u9a7b\u5185\u5b58\u5927\u5c0f<\/h2>\n<\/p>\n<p><p>RES\uff0c\u5373Resident Set Size\uff0c\u662f\u8fdb\u7a0b\u5f53\u524d\u5360\u7528\u7684\u7269\u7406\u5185\u5b58\u7684\u5927\u5c0f\u3002\u4e0d\u540c\u4e8eVIRT\uff0cRES\u53ea\u8ba1\u7b97\u88ab\u5b9e\u9645\u8f7d\u5165\u5230RAM\u4e2d\u4e14\u6b63\u5728\u88ab\u8fdb\u7a0b\u4f7f\u7528\u7684\u90a3\u90e8\u5206\u5185\u5b58\uff0c\u8fd9\u610f\u5473\u7740\u5b83\u6392\u9664\u4e86\u4ea4\u6362\u7a7a\u95f4\u3001\u6620\u5c04\u4f46\u672a\u8f7d\u5165\u7684\u6587\u4ef6\u90e8\u5206\u7b49\u3002RES\u662f\u8861\u91cf\u8fdb\u7a0b\u7269\u7406\u5185\u5b58\u4f7f\u7528\u60c5\u51b5\u7684\u4e00\u4e2a\u76f4\u89c2\u6307\u6807\uff0c\u9ad8RES\u503c\u8868\u660e\u8fdb\u7a0b\u5360\u7528\u4e86\u5927\u91cf\u7684\u7269\u7406\u5185\u5b58\u8d44\u6e90\u3002<\/p>\n<\/p>\n<p><h3>\u6df1\u5165\u4e86\u89e3RES<\/h3>\n<\/p>\n<p><p>\u5e38\u9a7b\u5185\u5b58\u5927\u5c0f\u7684\u8ba1\u7b97\uff0c\u4ec5\u5305\u62ec\u4e86<strong>\u5b9e\u9645\u4e0a\u9a7b\u7559\u5728\u7269\u7406\u5185\u5b58\u4e2d\u5e76\u4e14\u6b63\u88ab\u8fdb\u7a0b\u8bbf\u95ee\u6216\u4f7f\u7528\u7684\u5185\u5b58\u9875<\/strong>\u3002\u56e0\u6b64\uff0cRES\u53ef\u4ee5\u66f4\u51c6\u786e\u5730\u53cd\u6620\u51fa\u4e00\u4e2a\u8fdb\u7a0b\u5bf9\u7269\u7406\u5185\u5b58\u8d44\u6e90\u7684\u9700\u6c42\u91cf\u3002\u6709\u65f6\u4f60\u53ef\u80fd\u4f1a\u6ce8\u610f\u5230\u5373\u4f7f\u5728\u8fdb\u7a0b\u4e0d\u6d3b\u8dc3\u7684\u60c5\u51b5\u4e0b\uff0cRES\u503c\u4e5f\u53ef\u80fd\u76f8\u5bf9\u8f83\u9ad8\uff0c\u8fd9\u662f\u56e0\u4e3a\u4e00\u4e9b\u5185\u5b58\u9875\u53ef\u80fd\u4ecd\u4fdd\u6301\u5728\u7269\u7406\u5185\u5b58\u4e2d\uff0c\u4ee5\u4fbf\u5feb\u901f\u91cd\u65b0\u4f7f\u7528\uff0c\u800c\u4e0d\u662f\u88ab\u9a6c\u4e0a\u6e05\u9664\u6216\u4ea4\u6362\u51fa\u53bb\u3002<\/p>\n<\/p>\n<p><h2>\u4e09\u3001\u533a\u5206VIRT\u548cRES\u7684\u91cd\u8981\u6027<\/h2>\n<\/p>\n<p><p>\u4e86\u89e3VIRT\u548cRES\u7684\u533a\u522b\u5bf9\u4e8e\u8fdb\u884c\u7cfb\u7edf\u6027\u80fd\u5206\u6790\u3001<a href=\"https:\/\/docs.pingcode.com\/blog\/project-management\/58557.html\" target=\"_blank\">\u8d44\u6e90\u7ba1\u7406<\/a>\u4ee5\u53ca\u6545\u969c\u8c03\u67e5\u975e\u5e38\u5173\u952e\u3002\u5bf9\u4e8e\u5185\u5b58\u5bc6\u96c6\u578b\u5e94\u7528\uff0c\u5206\u6790\u8fd9\u4e24\u4e2a\u503c\u7684\u53d8\u5316\u53ef\u4ee5\u5e2e\u52a9\u7cfb\u7edf\u7ba1\u7406\u5458\u6216\u5f00\u53d1\u4eba\u5458\u4f18\u5316\u5e94\u7528 performance\uff0c\u907f\u514d\u4e0d\u5fc5\u8981\u7684\u5185\u5b58\u6d6a\u8d39\uff0c\u540c\u65f6\u8bc6\u522b\u51fa\u6f5c\u5728\u7684\u6027\u80fd\u74f6\u9888\u3002<\/p>\n<\/p>\n<p><h3>\u6027\u80fd\u4f18\u5316<\/h3>\n<\/p>\n<p><p><strong>\u6027\u80fd\u4f18\u5316<\/strong>\u8fc7\u7a0b\u4e2d\uff0c\u901a\u8fc7\u51cf\u5c0fVIRT\u503c\uff0c\u4f8b\u5982\u4f18\u5316\u4ee3\u7801\u4e2d\u7684\u5185\u5b58\u6620\u5c04\u6587\u4ef6\u4f7f\u7528\uff0c\u53ef\u4ee5\u964d\u4f4e\u8fdb\u7a0b\u5bf9\u865a\u62df\u5730\u5740\u7a7a\u95f4\u7684\u9700\u6c42\uff0c\u4ece\u800c\u53ef\u80fd\u51cf\u8f7b\u64cd\u4f5c\u7cfb\u7edf\u5730\u5740\u8f6c\u6362\u7684\u8d1f\u62c5\u3002\u540c\u6837\uff0c\u901a\u8fc7\u964d\u4f4eRES\u503c\uff0c\u53ef\u4ee5\u76f4\u63a5\u51cf\u5c11\u8fdb\u7a0b\u5bf9\u7269\u7406\u5185\u5b58\u7684\u9700\u6c42\uff0c\u63d0\u9ad8\u7cfb\u7edf\u5185\u5176\u4ed6\u8fdb\u7a0b\u7684\u5185\u5b58\u53ef\u7528\u6027\uff0c\u4e5f\u80fd\u51cf\u8f7b\u64cd\u4f5c\u7cfb\u7edf\u7684\u5185\u5b58\u538b\u529b\u3002 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