To add temporary swap file server

Add a swap partition, example:

The recommended size is 2 times the actual memory. Create a swap file, bs value is fixed.

--16G

dd if=/dev/zero of=/swapfile bs=1024k count=16384

--5G

dd if=/dev/zero of=/swapfile bs=1024k count=5120

--8G

dd if=/dev/zero of=/swapfile bs=1024k count=8120

 Among them, the value of count should be no need to be an integer multiple of 1024.

 

mkswap /swapfile


swapon /swapfile

--------------------------------

Check swap file information exists that is hanging success
vi / etc / fstab

/swapfile              swap                    swap    defaults        0 0


shut down

swapoff /swapfile

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Origin www.cnblogs.com/yanglw/p/11307076.html