\u524d\u8a00<\/strong><\/div>\n
Linux\u547d\u4ee4\u5343\u5343\u4e07\uff0c\u800c\u6211\u4eec\u5728\u65e5\u5e38\u5de5\u4f5c\u4e2d\u771f\u771f\u5207\u5207\u7528\u5230\u7684\u547d\u4ee4\u5e94\u8be5\u4e0d\u8d85\u8fc750\u4e2a\uff0c\u5728\u63a5\u4e0b\u6765\u7684\u65e5\u5b50\u91cc\uff0c\u6211\u4f1a\u5bf9\u6211\u7ecf\u5e38\u4f7f\u7528\u7684\u547d\u4ee4\uff0c\u4ee5\u53ca\u4f7f\u7528\u8fc7\u7a0b\u4e2d\u4e0d\u719f\u6089\u7684\u547d\u4ee4\u8fdb\u884c\u4e00\u4e2a\u603b\u7ed3\uff0c\u4e00\u662f\u81ea\u6211\u603b\u7ed3\uff0c\u52a0\u6df1\u8bb0\u5fc6\uff1b\u4e8c\u662f\u548c\u5927\u5bb6\u5206\u4eab\u3002<\/p>\n
vmstat\u662fVirtual Meomory Statistics\uff08\u865a\u62df\u5185\u5b58\u7edf\u8ba1\uff09\u7684\u7f29\u5199\uff0c\u53ef\u5bf9\u64cd\u4f5c\u7cfb\u7edf\u7684\u865a\u62df\u5185\u5b58\u3001\u8fdb\u7a0b\u3001CPU\u6d3b\u52a8\u8fdb\u884c\u76d1\u63a7\u3002\u5b83\u662f\u5bf9\u7cfb\u7edf\u7684\u6574\u4f53\u60c5\u51b5\u8fdb\u884c\u7edf\u8ba1\uff0c\u4e0d\u8db3\u4e4b\u5904\u662f\u65e0\u6cd5\u5bf9\u67d0\u4e2a\u8fdb\u7a0b\u8fdb\u884c\u6df1\u5165\u5206\u6790\u3002vmstat\u5de5\u5177\u63d0\u4f9b\u4e86\u4e00\u79cd\u4f4e\u5f00\u9500\u7684\u7cfb\u7edf\u6027\u80fd\u89c2\u5bdf\u65b9\u5f0f\u3002\u56e0\u4e3avmstat\u672c\u8eab\u5c31\u662f\u4f4e\u5f00\u9500\u5de5\u5177\uff0c\u5728\u975e\u5e38\u9ad8\u8d1f\u8377\u7684\u670d\u52a1\u5668\u4e0a\uff0c\u4f60\u9700\u8981\u67e5\u770b\u5e76\u76d1\u63a7\u7cfb\u7edf\u7684\u5065\u5eb7\u60c5\u51b5\uff0c\u5728\u63a7\u5236\u7a97\u53e3\u8fd8\u662f\u80fd\u591f\u4f7f\u7528vmstat\u8f93\u51fa\u7ed3\u679c\u3002<\/p>\n
\u865a\u62df\u5185\u5b58\u539f\u7406
\n\u4e0a\u9762\u8bf4\u5230\u4e86vmstat\u662f\u865a\u62df\u5185\u5b58\u7edf\u8ba1\u5de5\u5177\uff0c\u90a3\u54b1\u5c31\u4e0d\u5f97\u4e0d\u8bf4\u4e00\u8bf4\u865a\u62df\u5185\u5b58\u539f\u7406\u3002<\/p>\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<\/p>\n
\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
\u5206\u9875(Page)\u5199\u5165\u78c1\u76d8\u7684\u8fc7\u7a0b\u88ab\u79f0\u4f5cPage-Out\uff0c\u5206\u9875(Page)\u4ece\u78c1\u76d8\u91cd\u65b0\u56de\u5230\u5185\u5b58\u7684\u8fc7\u7a0b\u88ab\u79f0\u4f5cPage-In\u3002\u5f53\u5185\u6838\u9700\u8981\u4e00\u4e2a\u5206\u9875\u65f6\uff0c\u4f46\u53d1\u73b0\u6b64\u5206\u9875\u4e0d\u5728\u7269\u7406\u5185\u5b58\u4e2d(\u56e0\u4e3a\u5df2\u7ecf\u88abPage-Out\u4e86)\uff0c\u6b64\u65f6\u5c31\u53d1\u751f\u4e86\u5206\u9875\u9519\u8bef\uff08Page Fault\uff09\u3002<\/p>\n
\u5f53\u7cfb\u7edf\u5185\u6838\u53d1\u73b0\u53ef\u8fd0\u884c\u5185\u5b58\u53d8\u5c11\u65f6\uff0c\u5c31\u4f1a\u901a\u8fc7Page-Out\u6765\u91ca\u653e\u4e00\u90e8\u5206\u7269\u7406\u5185\u5b58\u3002\u7ecf\u7ba1Page-Out\u4e0d\u662f\u7ecf\u5e38\u53d1\u751f\uff0c\u4f46\u662f\u5982\u679cPage-out\u9891\u7e41\u4e0d\u65ad\u7684\u53d1\u751f\uff0c\u76f4\u5230\u5f53\u5185\u6838\u7ba1\u7406\u5206\u9875\u7684\u65f6\u95f4\u8d85\u8fc7\u8fd0\u884c\u7a0b\u5f0f\u7684\u65f6\u95f4\u65f6\uff0c\u7cfb\u7edf\u6548\u80fd\u4f1a\u6025\u5267\u4e0b\u964d\u3002\u8fd9\u65f6\u7684\u7cfb\u7edf\u5df2\u7ecf\u8fd0\u884c\u975e\u5e38\u6162\u6216\u8fdb\u5165\u6682\u505c\u72b6\u6001\uff0c\u8fd9\u79cd\u72b6\u6001\u4ea6\u88ab\u79f0\u4f5cthrashing(\u98a0\u7c38)\u3002<\/p>\n
\u547d\u4ee4\u8be6\u89e3<\/strong><\/div>\n
vmstat\u5e38\u7528\u547d\u4ee4\u683c\u5f0f\u5982\u4e0b\uff1a<\/strong><\/span><\/div>\n
[cc]vmstat [-a] [-n] [-S unit] [delay [ count]]
\nvmstat [-s] [-n] [-S unit]
\nvmstat [-m] [-n] [delay [ count]]
\nvmstat [-d] [-n] [delay [ count]]
\nvmstat [-p disk partition] [-n] [delay [ count]]
\nvmstat [-f]
\nvmstat [-V][\/cc]<\/p>\n
\u547d\u4ee4\u9009\u9879\u8bf4\u660e\u5982\u4e0b\uff1a<\/strong><\/span><\/div>\n
[cc]-a\uff1a\u663e\u793a\u6d3b\u8dc3\u548c\u975e\u6d3b\u8dc3\u5185\u5b58
\n-f\uff1a\u663e\u793a\u4ece\u7cfb\u7edf\u542f\u52a8\u81f3\u4eca\u7684fork\u6570\u91cf \u3002
\n-m\uff1a\u663e\u793aslabinfo
\n-n\uff1a\u53ea\u5728\u5f00\u59cb\u65f6\u663e\u793a\u4e00\u6b21\u5404\u5b57\u6bb5\u540d\u79f0\u3002
\n-s\uff1a\u663e\u793a\u5185\u5b58\u76f8\u5173\u7edf\u8ba1\u4fe1\u606f\u53ca\u591a\u79cd\u7cfb\u7edf\u6d3b\u52a8\u6570\u91cf\u3002
\ndelay\uff1a\u5237\u65b0\u65f6\u95f4\u95f4\u9694\u3002\u5982\u679c\u4e0d\u6307\u5b9a\uff0c\u53ea\u663e\u793a\u4e00\u6761\u7ed3\u679c\u3002
\ncount\uff1a\u5237\u65b0\u6b21\u6570\u3002\u5982\u679c\u4e0d\u6307\u5b9a\u5237\u65b0\u6b21\u6570\uff0c\u4f46\u6307\u5b9a\u4e86\u5237\u65b0\u65f6\u95f4\u95f4\u9694\uff0c\u8fd9\u65f6\u5237\u65b0\u6b21\u6570\u4e3a\u65e0\u7a77\u3002
\n-d\uff1a\u663e\u793a\u78c1\u76d8\u76f8\u5173\u7edf\u8ba1\u4fe1\u606f\u3002
\n-p\uff1a\u663e\u793a\u6307\u5b9a\u78c1\u76d8\u5206\u533a\u7edf\u8ba1\u4fe1\u606f
\n-S\uff1a\u4f7f\u7528\u6307\u5b9a\u5355\u4f4d\u663e\u793a\u3002\u53c2\u6570\u6709 k \u3001K \u3001m \u3001M\uff0c\u5206\u522b\u4ee3\u88681000\u30011024\u30011000000\u30011048576\u5b57\u8282\uff08byte\uff09\u3002\u9ed8\u8ba4\u5355\u4f4d\u4e3aK\uff081024 bytes\uff09
\n-V\uff1a\u663e\u793avmstat\u7248\u672c\u4fe1\u606f\u3002[\/cc]<\/p>\n
\u4e0b\u9762\u5c31\u5bf9\u6211\u4eec\u5e38\u7528\u7684\u4f7f\u7528\u65b9\u5f0f\u8fdb\u884c\u8be6\u7ec6\u7684\u603b\u7ed3\u3002<\/strong><\/div>\n
\u4f7f\u7528\u5b9e\u4f8b<\/strong><\/span><\/div>\n
\u8f93\u5165\u547d\u4ee4\uff1a[cc]vmstat 1[\/cc]<\/p>\n
\u8f93\u51fa\u7ed3\u679c\uff1a<\/strong><\/span><\/div>\n
[cc]procs -----------memory---------- ---swap-- -----io---- -system-- ------cpu-----
\n r b swpd free buff cache si so bi bo in cs us sy id wa st
\n 3 0 361396 196772 55820 359372 0 0 13 21 1 1 2 0 98 0 0
\n 1 0 361392 196524 55820 359616 8 0 236 0 411 527 1 0 90 9 0
\n 2 1 361392 196524 55828 359608 0 0 0 48 370 503 1 1 98 0 0
\n 4 0 361392 196524 55828 359616 0 0 0 0 442 559 1 0 99 0 0[\/cc]<\/p>\n
\u5b57\u6bb5\u8bf4\u660e\uff1a<\/strong><\/span><\/div>\n
[cc]procs\uff08\u8fdb\u7a0b\uff09
\nr\uff1a\u5f53\u524d\u8fd0\u884c\u961f\u5217\u4e2d\u7ebf\u7a0b\u7684\u6570\u76ee\uff0c\u4ee3\u8868\u7ebf\u7a0b\u5904\u4e8e\u53ef\u8fd0\u884c\u72b6\u6001\uff0c\u4f46CPU\u8fd8\u672a\u80fd\u6267\u884c.\uff0c\u8fd9\u4e2a\u503c\u53ef\u4ee5\u4f5c\u4e3a\u5224\u65adCPU\u662f\u5426\u7e41\u5fd9\u7684\u4e00\u4e2a\u6307\u6807\uff1b\u5f53\u8fd9\u4e2a\u503c\u8d85\u8fc7\u4e86CPU\u6570\u76ee\uff0c\u5c31\u4f1a\u51fa\u73b0CPU\u74f6\u9888\u4e86\uff1b\u8fd9\u4e2a\u6211\u4eec\u53ef\u4ee5\u7ed3\u5408top\u547d\u4ee4\u7684\u8d1f\u8f7d\u503c\u540c\u6b65\u8bc4\u4f30\u7cfb\u7edf\u6027\u80fd\uff1b
\nb\uff1a\u7b49\u5f85IO\u7684\u8fdb\u7a0b\u6570\u91cf\uff1b\u5982\u679c\u8be5\u503c\u4e00\u76f4\u90fd\u5f88\u5927\uff0c\u8bf4\u660eIO\u6bd4\u8f83\u7e41\u5fd9\uff0c\u5904\u7406\u8f83\u6162\uff1b
\nmemory\uff08\u5185\u5b58\uff09
\nswpd\uff1a\u865a\u62df\u5185\u5b58\u5df2\u4f7f\u7528\u7684\u5927\u5c0f\uff1b\u5982\u679cswpd\u7684\u503c\u4e0d\u4e3a0\uff0c\u4f46\u662fsi\uff0cso\u7684\u503c\u957f\u671f\u4e3a0\uff0c\u8fd9\u79cd\u60c5\u51b5\u4e0d\u4f1a\u5f71\u54cd\u7cfb\u7edf\u6027\u80fd\uff1b
\nfree\uff1a\u7a7a\u95f2\u7684\u7269\u7406\u5185\u5b58\u7684\u5927\u5c0f\uff1b
\nbuff\uff1a\u7528\u4f5c\u7f13\u51b2\u7684\u5185\u5b58\u5927\u5c0f\uff1b
\ncache\uff1a\u7528\u4f5c\u7f13\u5b58\u7684\u5185\u5b58\u5927\u5c0f\uff1b\u5982\u679ccache\u7684\u503c\u5927\u7684\u65f6\u5019\uff0c\u8bf4\u660ecache\u5904\u7684\u6587\u4ef6\u6570\u591a\uff0c\u5982\u679c\u9891\u7e41\u8bbf\u95ee\u5230\u7684\u6587\u4ef6\u90fd\u80fd\u88abcache\u5904\uff0c\u90a3\u4e48\u78c1\u76d8\u7684\u8bfbIO bi\u4f1a\u975e\u5e38\u5c0f\uff1b
\nswap\uff08\u4ea4\u6362\u7a7a\u95f4\uff0c\u5355\u4f4d\uff1aKB\uff09\uff1b\u5185\u5b58\u591f\u7528\u7684\u65f6\u5019\uff0c\u8fd92\u4e2a\u503c\u90fd\u662f0\uff0c\u5982\u679c\u8fd92\u4e2a\u503c\u957f\u671f\u5927\u4e8e0\u65f6\uff0c\u7cfb\u7edf\u6027\u80fd\u4f1a\u53d7\u5230\u5f71\u54cd\uff0c\u78c1\u76d8IO\u548cCPU\u8d44\u6e90\u90fd\u4f1a\u88ab\u6d88\u8017\u3002\u6709\u65f6\u6211\u4eec\u770b\u5230\u7a7a\u95f2\u5185\u5b58\uff08free\uff09\u5f88\u5c11\u7684\u6216\u63a5\u8fd1\u4e8e0\u65f6\uff0c\u5c31\u8ba4\u4e3a\u5185\u5b58\u4e0d\u591f\u7528\u4e86\uff0c\u4e0d\u80fd\u5149\u770b\u8fd9\u4e00\u70b9\uff0c\u8fd8\u8981\u7ed3\u5408si\u548cso\uff0c\u5982\u679cfree\u5f88\u5c11\uff0c\u4f46\u662fsi\u548cso\u4e5f\u5f88\u5c11\uff08\u5927\u591a\u65f6\u5019\u662f0\uff09\uff0c\u90a3\u4e48\u4e0d\u7528\u62c5\u5fc3\uff0c\u7cfb\u7edf\u6027\u80fd\u8fd9\u65f6\u4e0d\u4f1a\u53d7\u5230\u5f71\u54cd\u7684\uff1b
\nsi\uff1a\u6bcf\u79d2\u4ece\u4ea4\u6362\u533a\u5199\u5230\u5185\u5b58\u7684\u5927\u5c0f\uff1b
\nso\uff1a\u6bcf\u79d2\u5199\u5165\u4ea4\u6362\u533a\u7684\u5185\u5b58\u5927\u5c0f\uff1b
\nio\uff08\u5355\u4f4d\uff1a\u5757\/\u79d2\uff09
\nbi\uff1a\u6bcf\u79d2\u8bfb\u53d6\u7684\u5757\u6570\uff1b
\nbo\uff1a\u6bcf\u79d2\u5199\u5165\u7684\u5757\u6570\uff1b\u968f\u673a\u78c1\u76d8\u8bfb\u5199\u7684\u65f6\u5019\uff0c\u8fd92\u4e2a\u503c\u8d8a\u5927\uff0c\u80fd\u770b\u5230CPU\u5728IO\u7b49\u5f85\u7684\u503c\u4e5f\u4f1a\u8d8a\u5927\uff1b
\nsystem\uff08\u7cfb\u7edf\uff09\uff1b\u8fd92\u4e2a\u503c\u8d8a\u5927\uff0c\u4f1a\u770b\u5230\u7531\u5185\u6838\u6d88\u8017\u7684CPU\u65f6\u95f4\u4f1a\u8d8a\u5927\uff1b
\nin\uff1a\u6bcf\u79d2\u4e2d\u65ad\u6570\uff0c\u5305\u62ec\u65f6\u949f\u4e2d\u65ad\uff1b
\ncs\uff1a\u6bcf\u79d2\u4e0a\u4e0b\u6587\u5207\u6362\u6570\uff1b
\ncpu\uff08\u4ee5\u767e\u5206\u6bd4\u8868\u793a\uff09
\nus\uff1a\u7528\u6237\u8fdb\u7a0b\u6267\u884c\u65f6\u95f4(user time)\uff1b
\nsy\uff1a\u7cfb\u7edf\u8fdb\u7a0b\u6267\u884c\u65f6\u95f4(system time)\uff1b
\nid\uff1a\u7a7a\u95f2\u65f6\u95f4(\u5305\u62ecIO\u7b49\u5f85\u65f6\u95f4)\uff1b
\nwa\uff1a\u7b49\u5f85IO\u65f6\u95f4\uff1bwa\u7684\u503c\u9ad8\u65f6\uff0c\u8bf4\u660eIO\u7b49\u5f85\u6bd4\u8f83\u4e25\u91cd\uff0c\u8fd9\u53ef\u80fd\u7531\u4e8e\u78c1\u76d8\u5927\u91cf\u4f5c\u968f\u673a\u8bbf\u95ee\u9020\u6210\uff0c\u4e5f\u6709\u53ef\u80fd\u78c1\u76d8\u51fa\u73b0\u74f6\u9888\u3002[\/cc]
\n\u603b\u7ed3
\n\u5173\u4e8eLinux vmstat\u547d\u4ee4\u603b\u7ed3\u7684\u6587\u7ae0\u6709\u5f88\u591a\uff0c\u4f46\u662f\u6211\u8fd8\u662f\u62bd\u51fa\u534a\u4e2a\u5c0f\u65f6\u91cd\u65b0\u6574\u7406\u4e86\u4e00\u904d\uff0c\u6211\u5728\u6574\u7406\u6211\u8fd9\u7bc7\u6587\u7ae0\u65f6\uff0c\u53c2\u8003\u4e86\u7f51\u4e0a\u4e86\u90e8\u5206\u6587\u7ae0\uff0c\u8fd9\u4e5f\u662f\u4e00\u4e2a\u91cd\u65b0\u5b66\u4e60\u7684\u673a\u4f1a\uff0c\u5e0c\u671b\u6211\u7684\u603b\u7ed3\uff0c\u80fd\u7ed9\u5927\u5bb6\u4e0d\u4e00\u6837\u7684\u5e2e\u52a9\uff0c\u4e0d\u4e00\u6837\u7684\u611f\u89c9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
Linux\u547d\u4ee4\u5343\u5343\u4e07\uff0c\u800c\u6211\u4eec\u5728\u65e5\u5e38\u5de5\u4f5c\u4e2d\u771f\u771f\u5207\u5207\u7528\u5230\u7684\u547d\u4ee4\u5e94\u8be5\u4e0d\u8d85\u8fc750\u4e2a\uff0c\u5728\u63a5\u4e0b\u6765\u7684\u65e5\u5b50\u91cc\uff0c\u6211\u4f1a\u5bf9\u6211\u7ecf\u5e38\u4f7f\u7528 […]<\/p>\n","protected":false},"author":1893,"featured_media":133851,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[55],"tags":[],"class_list":["post-133848","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-thread"],"acf":[],"_links":{"self":[{"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/posts\/133848","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/users\/1893"}],"replies":[{"embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/comments?post=133848"}],"version-history":[{"count":3,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/posts\/133848\/revisions"}],"predecessor-version":[{"id":133904,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/posts\/133848\/revisions\/133904"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/media\/133851"}],"wp:attachment":[{"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/media?parent=133848"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/categories?post=133848"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/tags?post=133848"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}