清除linux系统cache的方法 Posted on 2018-08-07 Edited on 2019-10-28 In OS 只清除pagecache1sync; echo 1 > /proc/sys/vm/drop_caches 清除dentries and inodes1sync; echo 2 > /proc/sys/vm/drop_caches 清除PageCache, dentries and inodes1sync; echo 3 > /proc/sys/vm/drop_caches 清除swap空间1swapoff -a && swapon -a 原文链接