check_swap

[normal]
100 100
^Swap ok - Swap used\: +[0-9]{1,2}\% \([0-9]+ bytes out of [0-9]+\)$

[critical]
0 0
^CRITICAL - Swap used\: +[0-9]{1,2}\% \([0-9]+ bytes out of [0-9]+\)$

[critical]
100 100 1000000000 10000000000
^CRITICAL - Swap used\: +[0-9]{1,2}\% \([0-9]+ bytes out of [0-9]+\)$