https://eblog.ink/archives/131/ zh-CN 1.首先用命令free查看系统内 Swap 分区大小　　free -m 显示Mem: 2012 1960 51 0 748 950 　　-/+ buffers/cache: 260 1751 　... Thu, 01 Jan 1970 00:00:00 +0000 Thu, 01 Jan 1970 00:00:00 +0000