{"id":103,"date":"2023-03-17T01:07:48","date_gmt":"2023-03-16T17:07:48","guid":{"rendered":"http:\/\/idc.birk.cn\/?p=103"},"modified":"2023-03-17T01:07:48","modified_gmt":"2023-03-16T17:07:48","slug":"linux%e5%91%bd%e4%bb%a4%e8%a1%8c%e5%b7%a5%e5%85%b7-iostat","status":"publish","type":"post","link":"https:\/\/idc.birk.cn\/?p=103","title":{"rendered":"Linux\u547d\u4ee4\u884c\u5de5\u5177\u2014\u2014iostat"},"content":{"rendered":"
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Linux\u7cfb\u7edf\u4e2d\u7684iostat\u662fI\/O statistics\uff08\u8f93\u5165\/\u8f93\u51fa\u7edf\u8ba1\uff09\u7684\u7f29\u5199\uff0ciostat\u5de5\u5177\u5c06\u5bf9\u7cfb\u7edf\u7684\u78c1\u76d8\u64cd\u4f5c\u6d3b\u52a8\u8fdb\u884c\u76d1\u89c6\u3002\u5b83\u7684\u7279\u70b9\u662f\u6c47\u62a5\u78c1\u76d8\u6d3b\u52a8\u7edf\u8ba1\u60c5\u51b5\uff0c\u540c\u65f6\u4e5f\u4f1a\u6c47\u62a5\u51faCPU\u4f7f\u7528\u60c5\u51b5\u3002\u540cvmstat\u4e00\u6837\uff0ciostat\u4e5f\u6709\u4e00\u4e2a\u5f31\u70b9\uff0c\u5c31\u662f\u5b83\u4e0d\u80fd\u5bf9\u67d0\u4e2a\u8fdb\u7a0b\u8fdb\u884c\u6df1\u5165\u5206\u6790\uff0c\u4ec5\u5bf9\u7cfb\u7edf\u7684\u6574\u4f53\u60c5\u51b5\u8fdb\u884c\u5206\u6790\u3002<\/p>\n

iostat\u5e38\u7528\u547d\u4ee4\u683c\u5f0f\u5982\u4e0b\uff1a<\/p>\n

iostat [\u53c2\u6570] [\u65f6\u95f4] [\u6b21\u6570]
\n\u547d\u4ee4\u53c2\u6570\u8bf4\u660e\u5982\u4e0b\uff1a<\/p>\n

-c \u663e\u793aCPU\u4f7f\u7528\u60c5\u51b5
\n-d \u663e\u793a\u78c1\u76d8\u4f7f\u7528\u60c5\u51b5
\n-k \u4ee5K\u4e3a\u5355\u4f4d\u663e\u793a
\n-m \u4ee5M\u4e3a\u5355\u4f4d\u663e\u793a
\n-N \u663e\u793a\u78c1\u76d8\u9635\u5217(LVM) \u4fe1\u606f
\n-n \u663e\u793aNFS\u4f7f\u7528\u60c5\u51b5
\n-p \u53ef\u4ee5\u62a5\u544a\u51fa\u6bcf\u5757\u78c1\u76d8\u7684\u6bcf\u4e2a\u5206\u533a\u7684\u4f7f\u7528\u60c5\u51b5
\n-t \u663e\u793a\u7ec8\u7aef\u548cCPU\u7684\u4fe1\u606f
\n-x \u663e\u793a\u8be6\u7ec6\u4fe1\u606f<\/p>\n

iostat<\/code>\u547d\u4ee4\u53ef\u4ee5\u67e5\u770b\u8be6\u7ec6\u7684I\/O\u4fe1\u606f\uff0c\u4f7f\u7528\u65b9\u5f0f\u5982\u4e0b\uff1a<\/p>\n

\n
iostat [ options ] [ <interval> [ <count> ] ]\r\n<\/code><\/pre>\n<\/div>\n
iostat<\/code>\u547d\u4ee4\u793a\u4f8b\uff0c\u4e0d\u52a0\u9009\u9879\u5c06\u540c\u65f6\u663e\u793aCPU\u548cI\/O\u4fe1\u606f\uff1a<\/p>\n
\n
darren@DESKTOP<\/span>-<\/span>PSPUMSB<\/span>:<\/span>~<\/span>$ iostat 1<\/span> 2<\/span>\r\nLinux<\/span> 4.19<\/span>.104<\/span>-<\/span>microsoft-<\/span>standard (<\/span>DESKTOP<\/span>-<\/span>PSPUMSB<\/span>)<\/span>     08<\/span>\/<\/span>13<\/span>\/<\/span>20<\/span>        _x86_64_        (<\/span>4<\/span> CPU<\/span>)<\/span>\r\n\r\navg-<\/span>cpu:<\/span>  %<\/span>user   %<\/span>nice %<\/span>system %<\/span>iowait  %<\/span>steal   %<\/span>idle\r\n           0.67<\/span>    0.00<\/span>    1.51<\/span>    0.54<\/span>    0.00<\/span>   97.27<\/span>\r\n\r\nDevice<\/span>             tps    kB_read\/<\/span>s    kB_wrtn\/<\/span>s    kB_read    kB_wrtn\r\nsda              33.75<\/span>         9.79<\/span>     15440.81<\/span>        165<\/span>     260332<\/span>\r\nsdb             141.70<\/span>      2921.53<\/span>        24.20<\/span>      49257<\/span>        408<\/span>\r\n\r\navg-<\/span>cpu:<\/span>  %<\/span>user   %<\/span>nice %<\/span>system %<\/span>iowait  %<\/span>steal   %<\/span>idle\r\n           0.00<\/span>    0.00<\/span>    0.00<\/span>    0.00<\/span>    0.00<\/span>  100.00<\/span>\r\n\r\nDevice<\/span>             tps    kB_read\/<\/span>s    kB_wrtn\/<\/span>s    kB_read    kB_wrtn\r\nsda              40.00<\/span>         0.00<\/span>     20480.00<\/span>          0<\/span>      20480<\/span>\r\nsdb               0.00<\/span>         0.00<\/span>         0.00<\/span>          0<\/span>          0<\/span>\r\n<\/code><\/pre>\n<\/div>\n
-d<\/code>\u9009\u9879\u8f93\u51fa\u78c1\u76d8\u4f7f\u7528\u60c5\u51b5\uff1a<\/p>\n
\n
darren@DESKTOP<\/span>-<\/span>PSPUMSB<\/span>:<\/span>~<\/span>$ iostat -<\/span>d 1<\/span> 2<\/span>\r\nLinux<\/span> 4.19<\/span>.104<\/span>-<\/span>microsoft-<\/span>standard (<\/span>DESKTOP<\/span>-<\/span>PSPUMSB<\/span>)<\/span>     08<\/span>\/<\/span>13<\/span>\/<\/span>20<\/span>        _x86_64_        (<\/span>4<\/span> CPU<\/span>)<\/span>\r\n\r\nDevice<\/span>             tps    kB_read\/<\/span>s    kB_wrtn\/<\/span>s    kB_read    kB_wrtn\r\nsda              36.41<\/span>         1.24<\/span>     18219.92<\/span>        165<\/span>    2423432<\/span>\r\nsdb              17.97<\/span>       370.33<\/span>         3.10<\/span>      49257<\/span>        412<\/span>\r\n\r\nDevice<\/span>             tps    kB_read\/<\/span>s    kB_wrtn\/<\/span>s    kB_read    kB_wrtn\r\nsda              36.00<\/span>         0.00<\/span>     18432.00<\/span>          0<\/span>      18432<\/span>\r\nsdb               0.00<\/span>         0.00<\/span>         0.00<\/span>          0<\/span>          0<\/span>\r\n<\/code><\/pre>\n<\/div>\n
    \n
  • tps: \u8bbe\u5907\u7684\u6bcf\u79d2\u4f20\u8f93\u6b21\u6570<\/li>\n
  • kB_read\/s\uff1a\u6bcf\u79d2\u4ece\u8bbe\u5907\u8bfb\u53d6\u7684\u6570\u636e\u91cf<\/li>\n
  • kB_wrtn\/s\uff1a\u6bcf\u79d2\u5411\u8bbe\u5907\u5199\u5165\u7684\u6570\u636e\u91cf<\/li>\n
  • kB_read\uff1a\u4ece\u8bbe\u5907\u8bfb\u53d6\u7684\u603b\u6570\u636e\u91cf<\/li>\n
  • kB_wrtn\uff1a\u5411\u8bbe\u5907\u5199\u5165\u7684\u603b\u6570\u636e\u91cf<\/li>\n<\/ul>\n
    -x<\/code>\u9009\u9879\u53ef\u4ee5\u67e5\u770b\u66f4\u591a\u7684\u7edf\u8ba1\u4fe1\u606f\u5217\uff1a<\/p>\n
    \n
    darren@DESKTOP<\/span>-<\/span>PSPUMSB<\/span>:<\/span>~<\/span>$ iostat -<\/span>x\r\nLinux<\/span> 4.19<\/span>.104<\/span>-<\/span>microsoft-<\/span>standard (<\/span>DESKTOP<\/span>-<\/span>PSPUMSB<\/span>)<\/span>     08<\/span>\/<\/span>13<\/span>\/<\/span>20<\/span>        _x86_64_        (<\/span>4<\/span> CPU<\/span>)<\/span>\r\n\r\navg-<\/span>cpu:<\/span>  %<\/span>user   %<\/span>nice %<\/span>system %<\/span>iowait  %<\/span>steal   %<\/span>idle\r\n           0.04<\/span>    0.00<\/span>    0.16<\/span>    0.06<\/span>    0.00<\/span>   99.75<\/span>\r\n\r\nDevice<\/span>            r\/<\/span>s     w\/<\/span>s     rkB\/<\/span>s     wkB\/<\/span>s   rrqm\/<\/span>s   wrqm\/<\/span>s  %<\/span>rrqm  %<\/span>wrqm r_await w_await aqu-<\/span>sz rareq-<\/span>sz wareq-<\/span>sz  svctm  %<\/span>util\r\nsda              0.13<\/span>   26.44<\/span>      0.53<\/span>  13361.23<\/span>     0.00<\/span>     0.45<\/span>   0.00<\/span>   1.66<\/span>    5.29<\/span>    1.44<\/span>   0.01<\/span>     3.93<\/span>   505.27<\/span>   0.21<\/span>   0.57<\/span>\r\nsdb              7.47<\/span>    0.15<\/span>    156.87<\/span>      1.31<\/span>     0.00<\/span>     0.18<\/span>   0.00<\/span>  55.34<\/span>    1.19<\/span>   14.37<\/span>   0.01<\/span>    21.01<\/span>     8.96<\/span>   0.43<\/span>   0.32<\/span>\r\n<\/code><\/pre>\n<\/div>\n<\/article>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"
    Linux\u7cfb\u7edf\u4e2d\u7684iostat\u662fI\/O statistics\uff08\u8f93\u5165\/\u8f93\u51fa\u7edf\u8ba1\uff09\u7684\u7f29\u5199\uff0ciostat\u5de5\u5177\u5c06\u5bf9\u7cfb\u7edf\u7684\u78c1\u76d8\u64cd\u4f5c\u6d3b\u52a8\u8fdb\u884c\u76d1\u89c6\u3002\u5b83\u7684\u7279\u70b9\u662f\u6c47\u62a5\u78c1\u76d8\u6d3b\u52a8\u7edf\u8ba1\u60c5\u51b5\uff0c\u540c\u65f6\u4e5f\u4f1a\u6c47\u62a5\u51faCPU\u4f7f\u7528\u60c5\u51b5\u3002\u540cvmstat\u4e00\u6837\uff0ciostat\u4e5f\u6709\u4e00\u4e2a\u5f31\u70b9 […]<\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[6],"topic":[37],"class_list":["post-103","post","type-post","status-publish","format-standard","hentry","category-linux","tag-linux","topic-linux"],"_links":{"self":[{"href":"https:\/\/idc.birk.cn\/index.php?rest_route=\/wp\/v2\/posts\/103","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/idc.birk.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/idc.birk.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/idc.birk.cn\/index.php?rest_route=\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/idc.birk.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=103"}],"version-history":[{"count":1,"href":"https:\/\/idc.birk.cn\/index.php?rest_route=\/wp\/v2\/posts\/103\/revisions"}],"predecessor-version":[{"id":104,"href":"https:\/\/idc.birk.cn\/index.php?rest_route=\/wp\/v2\/posts\/103\/revisions\/104"}],"wp:attachment":[{"href":"https:\/\/idc.birk.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=103"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/idc.birk.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=103"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/idc.birk.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=103"},{"taxonomy":"topic","embeddable":true,"href":"https:\/\/idc.birk.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftopic&post=103"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}