{"id":3229,"date":"2017-03-02T23:43:05","date_gmt":"2017-03-02T15:43:05","guid":{"rendered":"https:\/\/ixyzero.com\/blog\/?p=3229"},"modified":"2017-03-02T23:43:05","modified_gmt":"2017-03-02T15:43:05","slug":"%e5%a6%82%e4%bd%95%e7%9f%a5%e9%81%93linux%e7%b3%bb%e7%bb%9f%e4%b8%8a%e4%b8%80%e5%85%b1%e6%9c%89%e5%a4%9a%e5%b0%91%e4%b8%aa%e6%96%87%e4%bb%b6%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/ixyzero.com\/blog\/archives\/3229.html","title":{"rendered":"\u5982\u4f55\u77e5\u9053Linux\u7cfb\u7edf\u4e0a\u4e00\u5171\u6709\u591a\u5c11\u4e2a\u6587\u4ef6\uff1f"},"content":{"rendered":"

=Start=<\/p>\n

\u7f18\u7531\uff1a<\/h4>\n

\u6700\u8fd1\u7531\u6211\u7f16\u5199\u7684\u4e00\u4e2a\u5b89\u5168\u626b\u63cf\u529f\u80fd\u5bfc\u81f4\u4e86\u4e00\u4e2a\u6545\u969c\uff0c\u867d\u7136\u5728\u4e0a\u7ebf\u524d\u5c31\u60f3\u5230\u8fc7\u8fd9\u4e2a\u64cd\u4f5c\u6bd4\u8f83\u5371\u9669\uff0c\u4f46\u662f\u53c8\u6ca1\u6709\u5176\u5b83\u7684\u66ff\u4ee3\u65b9\u6cd5\uff0c\u6240\u4ee5\u5c31\u4e0a\u4e86\uff0c\u7136\u540e\u5f15\u53d1\u4e86\u90e8\u5206\u673a\u5668\u7684\u78c1\u76d8IO\u3001\u5185\u5b58\u62a5\u8b66\u7b49\u95ee\u9898\u3002<\/p>\n

\u78c1\u76d8IO\u5176\u5b9e\u6bd4\u8f83\u597d\u7406\u89e3\uff0c\u56e0\u4e3a\u662f\u5bf9\u6839\u76ee\u5f55\u7684find\u64cd\u4f5c\uff0c\u6240\u4ee5\u9700\u8981\u904d\u5386\u7684\u6587\u4ef6\u6bd4\u8f83\u591a\uff0cIO\u64cd\u4f5c\u4e5f\u591a\uff1b\u5185\u5b58\u5360\u7528\u8fd9\u4e2a\u95ee\u9898\u4e4b\u524d\u6ca1\u60f3\u5230\uff0c\u4f46\u77e5\u9053\u5728\u5c0f\u6587\u4ef6\u3001\u76ee\u5f55\u7279\u522b\u591a\u7684\u60c5\u51b5\u4e0b\u53ef\u80fd\u5b58\u5728\u8fd9\u4e2a\u95ee\u9898\uff0c\u7136\u540e\u5c31\u771f\u5982Murphy\u5b9a\u5f8b\u6240\u8bf4\u2014\u2014\u51e1\u4e8b\u53ef\u80fd\u53d1\u751f\uff0c\u5c31\u5c06\u8981\u53d1\u751f<\/span><\/strong>\u3002<\/p>\n

\u6240\u4ee5\u8fd9\u91cc\u5148\u5b66\u4e60\u4e00\u4e0b\u83b7\u53d6Linux\u7cfb\u7edf\u4e0a\u4e00\u5171\u6709\u591a\u5c11\u6587\u4ef6\u7684\u65b9\u6cd5\u3002<\/p>\n

\u6b63\u6587\uff1a<\/h4>\n
\u53c2\u8003\u89e3\u7b54\uff1a<\/h5>\n
\n
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# GNU find<\/code><\/div>\n
# find \/ -xdev -type f -printf <\/code>'\\n'<\/code> | wc -l<\/code><\/div>\n
<\/div>\n
# POSIX find<\/code><\/div>\n
# find \/ -xdev -type f | wc -l<\/code><\/div>\n
[OR]<\/code><\/div>\n
# { printf <\/code>0<\/code>; find \/ -xdev -type f -exec sh -c <\/code>'printf \"+ $#\"'<\/code> sh {} +; echo; } | bc<\/code><\/div>\n
[OR]<\/code><\/div>\n
# find \/ -xdev -type f -exec printf <\/code>'%s\\0'<\/code> {} + | tr <\/code>'\\n\\0'<\/code> '?\\n'<\/code> | wc -l<\/code><\/div>\n
<\/div>\n
<\/div>\n
# \u5728\u4e0a\u9762\u7684\u8ba1\u7b97\u4e2d\u5b58\u5728\u4e00\u4e2a\u95ee\u9898\u2014\u2014\u5bf9\u4e8e\u540c\u4e00\u4e2a\u6587\u4ef6\u7684\u4e0d\u540c\u786c\u94fe\u63a5\u4e5f\u88ab\u7b97\u4f5c\u662f\u4e0d\u540c\u7684\u6587\u4ef6<\/code><\/div>\n
# GNU find<\/code><\/div>\n
# find \/ -xdev -type f -printf <\/code>'%i\\n'<\/code> | sort -u | wc -l<\/code><\/div>\n
<\/div>\n
# POSIX find<\/code><\/div>\n
# find \/ -xdev -type f -exec ls -iq {} + | sort -buk <\/code>1<\/code>,<\/code>1<\/code> | wc -l<\/code><\/div>\n<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n

&<\/p>\n

\n
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$ df --inodes \/ \/home<\/code><\/div>\n
Filesystem\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Inodes\u00a0\u00a0 IUsed\u00a0\u00a0 IFree IUse% Mounted on<\/code><\/div>\n
\/dev\/sda1\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <\/code>3981312<\/code>\u00a0 641704<\/code> 3339608<\/code>\u00a0\u00a0 17<\/code>% \/<\/code><\/div>\n
\/dev\/sda8\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <\/code>30588928<\/code>\u00a0 332207<\/code> 30256721<\/code>\u00a0\u00a0\u00a0 2<\/code>% \/home<\/code><\/div>\n
$ sudo find \/ -xdev -print | wc -l<\/code><\/div>\n
642070<\/code><\/div>\n
$ sudo find \/home -print | wc -l<\/code><\/div>\n
332158<\/code><\/div>\n
$ sudo find \/home -type f -print | wc -l<\/code><\/div>\n
284204<\/code><\/div>\n<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n
\u53c2\u8003\u94fe\u63a5\uff1a<\/h5>\n