{"id":2284,"date":"2017-05-27T22:04:37","date_gmt":"2017-05-27T14:04:37","guid":{"rendered":"http:\/\/cn.hostease.com\/xueyuan\/?p=2284"},"modified":"2017-05-27T22:04:37","modified_gmt":"2017-05-27T14:04:37","slug":"%e4%b8%80%e4%b8%aa%e5%8f%af%e4%bb%a5%e6%9f%a5%e7%9c%8b-linux-%e5%bd%93%e5%89%8d%e7%bc%93%e5%ad%98%e4%ba%86%e5%93%aa%e4%ba%9b%e5%a4%a7%e6%96%87%e4%bb%b6%e7%9a%84%e5%b0%8f%e5%b7%a5%e5%85%b7","status":"publish","type":"post","link":"https:\/\/cn.hostease.com\/xueyuan\/jishu\/linux\/%e4%b8%80%e4%b8%aa%e5%8f%af%e4%bb%a5%e6%9f%a5%e7%9c%8b-linux-%e5%bd%93%e5%89%8d%e7%bc%93%e5%ad%98%e4%ba%86%e5%93%aa%e4%ba%9b%e5%a4%a7%e6%96%87%e4%bb%b6%e7%9a%84%e5%b0%8f%e5%b7%a5%e5%85%b7\/","title":{"rendered":"\u4e00\u4e2a\u53ef\u4ee5\u67e5\u770b Linux \u5f53\u524d\u7f13\u5b58\u4e86\u54ea\u4e9b\u5927\u6587\u4ef6\u7684\u5c0f\u5de5\u5177"},"content":{"rendered":"

Linux \u7528\u6237\u53ef\u80fd\u7ecf\u5e38\u9047\u5230\u7684\u4e00\u4e2a\u95ee\u9898\u662f\uff0c\u673a\u5668\u6709 16GB \u5185\u5b58\u4e4b\u591a\uff0c\u8fd0\u884c\u7684\u8fdb\u7a0b\u4e5f\u4e0d\u591a\uff0c\u4f46\u662f\u5269\u4e0b\u7684 free \u5185\u5b58\u5e76\u4e0d\u591a\uff0c\u5927\u90e8\u5206\u90fd\u88ab buff \u548c cache \u5360\u7528\u4e86\uff08\u6bd4\u5982\u4e0b\u9762\u6211\u7684 PC\uff09\u3002<\/p>\n

    \n
  1. $ free <\/span>-<\/span>h<\/span><\/code><\/li>\n
  2. total used free shared buff<\/span>\/<\/span>cache available<\/span><\/code><\/li>\n
  3. Mem<\/span>:<\/span> 15G<\/span> 6.4G<\/span> 2.3G<\/span> 1.1G<\/span> 6.9G<\/span> 7.7G<\/span><\/code><\/li>\n
  4. Swap<\/span>:<\/span> 975M<\/span> 268K<\/span> 975M<\/span><\/code><\/li>\n<\/ol>\n

    \u867d\u7136\u5bf9\u4e8e Linux \u7684\u5185\u5b58\u5206\u914d\u673a\u5236\u6765\u8bf4\uff0c\u8fd9\u79cd\u88ab buff \u548c cache \u5360\u7528\u7684\u5185\u5b58\u5728\u7cfb\u7edf\u9700\u8981\u65f6\u4f1a\u53ca\u65f6\u91ca\u653e\u51fa\u6765\uff0c\u4f46\u662f\u6709\u65f6\u5019\u6211\u4eec\u60f3\u77e5\u9053\u5230\u5e95 cache \u4e86\u4e9b\u4ec0\u4e48\u5374\u6ca1\u6709\u4e00\u4e2a\u597d\u7684\u529e\u6cd5\u3002<\/p>\n

    \u524d\u51e0\u5929\u770b\u5230\u6709\u4e2a\u4eba\u7528 go \u5199\u4e86\u4e2a\u00a0pcstat\uff0c\u53ef\u4ee5\u67e5\u770b\u67d0\u4e2a\u6587\u4ef6\u662f\u5426\u88ab\u7f13\u5b58\uff08\u4f5c\u8005\u7684\u76ee\u7684\u662f\u6570\u636e\u5e93\u8c03\u4f18\uff09\uff0c\u4e5f\u53ef\u4ee5\u6839\u636e\u8fdb\u7a0b\u7684 PID \u6765\u67e5\u770b\u90fd\u7f13\u5b58\u4e86\u54ea\u4e9b\u6587\u4ef6\uff0c\u4e0d\u8fc7\u8be5\u5de5\u5177\u4e0d\u80fd\u67e5\u770b\u6574\u4e2a\u64cd\u4f5c\u7cfb\u7edf\u90fd cache \u4e86\u54ea\u4e9b\u6587\u4ef6\u3002<\/p>\n

    \u56e0\u6b64\uff0c\u6211\u57fa\u4e8e pcstat \u5199\u4e86\u4e2a hcache\uff0c\u589e\u52a0\u4e86\u67e5\u770b\u5f53\u524d\u64cd\u4f5c\u7cfb\u7edf\u6240 cache \u7684\u524d\u82e5\u5e72\u4e2a\u6587\u4ef6\u7684\u7279\u6027\uff0c<\/p>\n

    \u4f7f\u7528\u65b9\u6cd5\u6bd4\u8f83\u7b80\u5355\uff1a<\/p>\n

      \n
    1. $ <\/span>sudo<\/span> hcache <\/span>--<\/span>top<\/span> 10<\/span><\/code><\/li>\n
    2. [<\/span>sudo<\/span>]<\/span> password <\/span>for<\/span> silenceshell<\/span>:<\/span><\/code><\/li>\n
    3. +----------------------------------------------------------------------------------+----------------+------------+-----------+---------+<\/span><\/code><\/li>\n
    4. |<\/span> Name<\/span> |<\/span> Size<\/span> (<\/span>bytes<\/span>)<\/span> |<\/span> Pages<\/span> |<\/span> Cached<\/span> |<\/span> Percent<\/span> |<\/span><\/code><\/li>\n
    5. |----------------------------------------------------------------------------------+----------------+------------+-----------+---------|<\/span><\/code><\/li>\n
    6. |<\/span> \/opt\/<\/span>google<\/span>\/<\/span>chrome<\/span>\/<\/span>chrome <\/span>|<\/span> 114911208<\/span> |<\/span> 28055<\/span> |<\/span> 25457<\/span> |<\/span> 090.740<\/span> |<\/span><\/code><\/li>\n
    7. |<\/span> \/usr\/<\/span>share<\/span>\/<\/span>code<\/span>\/<\/span>code <\/span>|<\/span> 67688720<\/span> |<\/span> 16526<\/span> |<\/span> 12274<\/span> |<\/span> 074.271<\/span> |<\/span><\/code><\/li>\n
    8. |<\/span> \/home\/<\/span>silenceshell<\/span>\/<\/span>Software<\/span>\/<\/span>pycharm<\/span>-<\/span>community<\/span>-<\/span>2016.2<\/span>\/<\/span>lib<\/span>\/<\/span>pycharm<\/span>.<\/span>jar <\/span>|<\/span> 95177431<\/span> |<\/span> 23237<\/span> |<\/span> 11325<\/span> |<\/span> 048.737<\/span> |<\/span><\/code><\/li>\n
    9. |<\/span> \/opt\/<\/span>atom<\/span>\/<\/span>atom <\/span>|<\/span> 62641344<\/span> |<\/span> 15294<\/span> |<\/span> 10578<\/span> |<\/span> 069.164<\/span> |<\/span><\/code><\/li>\n
    10. |<\/span> \/usr\/<\/span>bin<\/span>\/<\/span>dockerd <\/span>|<\/span> 39121168<\/span> |<\/span> 9552<\/span> |<\/span> 7103<\/span> |<\/span> 074.361<\/span> |<\/span><\/code><\/li>\n
    11. |<\/span> \/home\/<\/span>silenceshell<\/span>\/<\/span>Software<\/span>\/<\/span>pycharm<\/span>-<\/span>community<\/span>-<\/span>2016.2<\/span>\/<\/span>jre<\/span>\/<\/span>jre<\/span>\/<\/span>lib<\/span>\/<\/span>amd64<\/span>\/<\/span>libjfxwebkit<\/span>.<\/span>so <\/span>|<\/span> 57455824<\/span> |<\/span> 14028<\/span> |<\/span> 6625<\/span> |<\/span> 047.227<\/span> |<\/span><\/code><\/li>\n
    12. |<\/span> \/usr\/<\/span>lib<\/span>\/<\/span>x86_64<\/span>-<\/span>linux<\/span>-<\/span>gnu<\/span>\/<\/span>libQtWebKit<\/span>.<\/span>so<\/span>.<\/span>4.10<\/span>.<\/span>2<\/span> |<\/span> 36462184<\/span> |<\/span> 8902<\/span> |<\/span> 6316<\/span> |<\/span> 070.950<\/span> |<\/span><\/code><\/li>\n
    13. |<\/span> \/usr\/<\/span>lib<\/span>\/<\/span>beyondcompare<\/span>\/<\/span>BCompare<\/span> |<\/span> 30640160<\/span> |<\/span> 7481<\/span> |<\/span> 5505<\/span> |<\/span> 073.586<\/span> |<\/span><\/code><\/li>\n
    14. |<\/span> \/usr\/<\/span>bin<\/span>\/<\/span>SecureCRT<\/span> |<\/span> 29524560<\/span> |<\/span> 7209<\/span> |<\/span> 4806<\/span> |<\/span> 066.667<\/span> |<\/span><\/code><\/li>\n
    15. |<\/span> \/usr\/<\/span>share<\/span>\/<\/span>code<\/span>\/<\/span>libnode<\/span>.<\/span>so <\/span>|<\/span> 21135976<\/span> |<\/span> 5161<\/span> |<\/span> 4588<\/span> |<\/span> 088.898<\/span> |<\/span><\/code><\/li>\n
    16. +---------------------------------------------------------------------<\/span><\/code><\/li>\n<\/ol>\n

      \u8ba9\u6211\u4eec\u6765\u67e5\u770b\u4e00\u4e0b\u5176\u4e2d\u5217\u51fa\u7684\u4e00\u4e2a\u6587\u4ef6\uff1a<\/p>\n

        \n
      1. $ <\/span>lsof<\/span> \/<\/span>usr<\/span>\/<\/span>lib<\/span>\/<\/span>x86_64<\/span>-<\/span>linux<\/span>-<\/span>gnu<\/span>\/<\/span>libQtWebKit<\/span>.<\/span>so<\/span>.<\/span>4.10<\/span>.<\/span>2<\/span><\/code><\/li>\n
      2. COMMAND PID USER FD TYPE DEVICE SIZE<\/span>\/<\/span>OFF NODE NAME<\/span><\/code><\/li>\n
      3. quiterss <\/span>20630<\/span> silenceshell mem REG <\/span>8<\/span>,<\/span>5<\/span> 36462184<\/span> 3936610<\/span> \/<\/span>usr<\/span>\/<\/span>lib<\/span>\/<\/span>x86_64<\/span>-<\/span>linux<\/span>-<\/span>gnu<\/span>\/<\/span>libQtWebKit<\/span>.<\/span>so<\/span>.<\/span>4.10<\/span>.<\/span>2<\/span><\/code><\/li>\n<\/ol>\n

        \u9ed8\u8ba4\u60c5\u51b5\u4e0b\u4f1a\u663e\u793a cache \u7684\u6587\u4ef6\u7684\u5168\u8def\u5f84\uff0c\u4f1a\u6bd4\u8f83\u957f\uff0c\u4e5f\u53ef\u4ee5\u4f7f\u7528 --bname<\/code> \u9009\u9879\u6765\u4ec5\u663e\u793a\u6587\u4ef6\u540d\uff1a<\/p>\n

          \n
        1. -------------+----------------+------------+-----------+---------+<\/span><\/code><\/li>\n
        2. $ <\/span>sudo<\/span> .\/<\/span>hcache <\/span>--<\/span>top<\/span> 3<\/span> --<\/span>bname <\/span><\/code><\/li>\n
        3. +-------------+----------------+------------+-----------+---------+<\/span><\/code><\/li>\n
        4. |<\/span> Name<\/span> |<\/span> Size<\/span> (<\/span>bytes<\/span>)<\/span> |<\/span> Pages<\/span> |<\/span> Cached<\/span> |<\/span> Percent<\/span> |<\/span><\/code><\/li>\n
        5. |-------------+----------------+------------+-----------+---------|<\/span><\/code><\/li>\n
        6. |<\/span> chrome <\/span>|<\/span> 114911208<\/span> |<\/span> 28055<\/span> |<\/span> 25476<\/span> |<\/span> 090.807<\/span> |<\/span><\/code><\/li>\n
        7. |<\/span> pycharm<\/span>.<\/span>jar <\/span>|<\/span> 95177431<\/span> |<\/span> 23237<\/span> |<\/span> 11479<\/span> |<\/span> 049.400<\/span> |<\/span><\/code><\/li>\n
        8. |<\/span> atom <\/span>|<\/span> 62641344<\/span> |<\/span> 15294<\/span> |<\/span> 10578<\/span> |<\/span> 069.164<\/span> |<\/span><\/code><\/li>\n
        9. +-------------+----------------+------------+-----------+---------+<\/span><\/code><\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"

          Linux \u7528\u6237\u53ef\u80fd\u7ecf\u5e38\u9047\u5230\u7684\u4e00\u4e2a\u95ee\u9898\u662f\uff0c\u673a\u5668\u6709 16GB \u5185\u5b58\u4e4b\u591a\uff0c\u8fd0\u884c\u7684\u8fdb\u7a0b\u4e5f\u4e0d\u591a\uff0c\u4f46\u662f\u5269\u4e0b\u7684 free … \u9605\u8bfb\u66f4\u591a<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[49],"tags":[38,675],"class_list":["post-2284","post","type-post","status-publish","format-standard","hentry","category-linux","tag-linux","tag-675"],"aioseo_notices":[],"jetpack_featured_media_url":"","jetpack-related-posts":[],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/posts\/2284","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/comments?post=2284"}],"version-history":[{"count":1,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/posts\/2284\/revisions"}],"predecessor-version":[{"id":2285,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/posts\/2284\/revisions\/2285"}],"wp:attachment":[{"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/media?parent=2284"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/categories?post=2284"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/tags?post=2284"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}