摘要： 命令#sync #echo3>/proc/sys/vm/drop_caches 查看内存情况：#more/proc/meminfo Kernels 2.6.16 and newer provide a mechanism to have the kernel drop the page cache and/or inode and dentry caches on command, which can help free up a lot of memory. Now you can throw away that script that allocated a ton of memor 阅读全文