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mkswap
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| 5 9 * * * root /sbin/swapoff -a && /root/bin/mkswap.sh |
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| # http://dev.classmethod.jp/cloud/ec2linux-swap-bestpractice/ | |
| SWAPFILENAME=/swap.img | |
| MEMSIZE=`cat /proc/meminfo | grep MemTotal | awk '{print $2}'` | |
| if [ $MEMSIZE -lt 2097152 ]; then | |
| SIZE=${((MEMSIZE * 2))}k | |
| elif [ $MEMSIZE -lt 8388608 ]; then | |
| SIZE=${MEMSIZE}k | |
| elif [ $MEMSIZE -lt 67108864 ]; then | |
| SIZE=${((MEMSIZE / 2))}k | |
| else | |
| SIZE=4194304k | |
| fi | |
| fallocate -l $SIZE $SWAPFILENAME && mkswap $SWAPFILENAME && swapon $SWAPFILENAME |
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