Re: GNU Parallel Bug Reports Use of uninitialized value $swap_out in pattern match

[Rhys Ulerich]

> The swap activity is determined from the output of:  vmstat 1 2 - 
> specifically:
>
> { vmstat 1 2 2> /dev/null || vm_stat 1; } | awk 'NR!=4{next}
> NF==16{print $7*$8} NF==11{print $10*$11} {exit}'
>
> What does this output on your system?

>From bash, running
   ( vmstat 1 2 || vm_stat 1 ) | awk 'NR!=4{next} NF==16{print $7*$8}
NF==11{print $10*$11} {exit}'
outputs nothing.

Running
  vmstat 1 2
outputs
procs -----------memory---------- ---swap-- -----io---- --system-- -----cpu-----
 r  b   swpd   free   buff  cache   si   so    bi    bo   in   cs us sy id wa st
 0  0      0 587736 320220 62341788    0    0    20    36    1    1  4
 0 95  0  0
 0  0      0 587612 320220 62341788    0    0     0     0  106   87  0
 0 100  0  0

- Rhys