添加设置Swap内存交换分区
查看现有swap
输出结果:
| $ free -h total used free shared buff/cache available Mem: 1.9Gi 910Mi 70Mi 37Mi 1.0Gi 879Mi Swap: 947Mi 149Mi 798Mi
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swap最好和内存一样(1~1.5倍).
查看原先swap文件位置
| $ swapon -s Filename Type Size Used Priority /swapfile file 969964 152780 -2
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然后到swap文件夹目录
设置新交换内存
| dd if=/dev/zero of=/swapmem bs=1G count=2 2+0 records in 2+0 records out 2147483648 bytes (2.1 GB, 2.0 GiB) copied, 21.0233 s, 102 MB/s
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使用新内存
| mkswap -f swapmem mkswap: swapmem: insecure permissions 0644, 0600 suggested. Setting up swapspace version 1, size = 2 GiB (2147479552 bytes) no label, UUID=eca22c93-fd83-4bcb-89ab-3be10ff95f6f
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设置权限
关闭原交换内存
查看内存使用率
| $ free -h total used free shared buff/cache available Mem: 1.9Gi 1.1Gi 93Mi 47Mi 781Mi 672Mi Swap: 0B 0B 0B
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设置新交换内存
查看内存使用率
| $ free -h total used free shared buff/cache available Mem: 1.9Gi 1.1Gi 71Mi 47Mi 801Mi 671Mi Swap: 2.0Gi 0B 2.0Gi
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设置开机启动
| vim /etc/fstab UUID=fa207ef7-79a7-4092-8381-98c2a5143c74 / ext4 errors=remount-ro 0 1 10 /swapmem none swap sw 0 0 11 /dev/fd0 /media/floppy0 auto rw,user,noauto,exec,utf8 0 0
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重启看看效果
| free -h $ free -h total used free shared buff/cache available Mem: 1.9Gi 791Mi 624Mi 41Mi 572Mi 1.0Gi Swap: 2.0Gi 0B 2.0Gi
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如果没有问题就删除原交换内存文件