CentOS7清理yum缓存和释放内存方法
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CentOS7清理yum缓存和释放内存方法

in Linux with 0 comment

清理yum缓存

清理yum缓存使用yum clean 命令,yum clean 的参数有headers, packages, metadata, dbcache, plugins, expire-cache, rpmdb, all

yum clean headers #清理/var/cache/yum的headers
yum clean packages #清理/var/cache/yum下的软件包
yum clean metadata ...

Linux释放内存

释放网页缓存(To free pagecache):

sync; echo 1 > /proc/sys/vm/drop_caches

释放目录项和索引(To free dentries and inodes):

sync; echo 2 > /proc/sys/vm/drop_caches

释放网页缓存,目录项和索引(To free pagecache, dentries and inodes):

sync; echo 3 > /proc/sys/vm/drop_caches
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