内存查看 查看内存是否存在瓶颈,使用top指令看比较麻烦,而free命令更为直观: [/home/weber#]free total used free shared buffers cached Mem: -/+ buffers/cache: Swap: [/home/weber#]top top - :: up days, :, user, load average: 0.02, 0.02, 0.05 Tasks: total, running, sleeping, stopped, zom