注：linux swap分区 采用lvm管理，调控可以采用下面的方法

一.查看 swap    lv

[root@testdb ~]# vgdisplay -v

    Finding all volume groups

    Finding volume group "VolGroup"

  --- Volume group ---

  VG Name               VolGroup

  System ID            

  Format                lvm2

  Metadata Areas        1

  Metadata Sequence No  4

  VG Access             read/write

  VG Status             resizable

  MAX LV                0

  Cur LV                3

  Open LV               3

  Max PV                0

  Cur PV                1

  Act PV                1

  VG Size               357.38 GiB

  PE Size               4.00 MiB

  Total PE              91489

  Alloc PE / Size       34512 / 134.81 GiB