linux配置虚拟内存

mkdir swap  //创件文件夹

cd swap

sudo dd if=/dev/zero of=swapfile bs=1024 count=12000000  //其中bs是创建 1024是kb   后面1000个就是1MB   1000000就是1000MB=1G
记录了 100000+0 的读入
记录了 100000+0 的写出
102400000 字节 (102 MB) 已复制，0.74704 秒，137 MB/秒

//把生成的文件转换成 Swap 文件
sudo mkswap swapfile


激活
sudo swapon swapfile

//之后会显示是否成功,如果一定要注意可能第二行的信息是Failed,
//我的就是因为开大了而失败.此时,要重新运行一下这个命令,(如果过大会自动给你变动)
此时开的虚拟内存会在开机后消失,如果永久保持下去,在/etc/fstab文件尾添加一下信息:
swapfilepath swap swap defaults 0 0
例如:我的我是在/root/进行的配置,因此添加了下面内容
vim /etc/fstab   //编辑文件

/root/swap/swapfile swap swap defaults 0 0
如此,保存并退出即可
哈哈
sanradar
sanradar
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