linux + how to know when swapoff -a should be ended

Question

on my linux redhat machine I perform swapoff

in order to drop swap pages that stays in cached swap!

swapoff -a

I waiting until now one hour and swapoff still work

can we see some process or notification when swapoff should be ended ?

remark - swap size is 8G , and memory size is 60 G

score 2 · Accepted Answer · answered Dec 16 '16 at 11:32

in order to trace the swapoff process run the command free

and see that after some time the total swap is decrease

in this way "total swap" should be nearly 0 when swapodd ended,

after swapoff ended perform swapon -a

example :

 free -g
                   total       used       free     shared    buffers     cached
  Mem:              58           35         23          0          0         24
    -/+ buffers/cache:           10         48
 Swap:              1            1           0

you can also check if the swap is "on" with htop – Orphans Dec 16 '16 at 12:41 — Orphans, Dec 16 '16 at 12:41

linux + how to know when swapoff -a should be ended

1 Answers1