1、将内存的数据写回硬盘
sync |
2、清除缓存
echo 3 > /proc/sys/vm/drop_caches |
完成!
drop_caches 的解释:
To free pagecache, use echo 1 > /proc/sys/vm/drop_caches;
to free dentries and inodes, use echo 2 > /proc/sys/vm/drop_caches;
to free pagecache, dentries and inodes, use echo 3 >/proc/sys/vm/drop_caches.
本文转自运维笔记博客51CTO博客,原文链接http://blog.51cto.com/lihuipeng/1001922如需转载请自行联系原作者
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