I started 2.5.1 evaluation and noticed that linux template has "absolute" swap threshold, i.e. warning event when available swap size < 1GB. This causes permanent "warning" when configured swap is <1GB.

I suggest to use relative threshold - i.e., when free swap is X% from configured swap. For example, I use 20% threshold

min value for "memAvailSwap"  is  here.os.totalSwap   / 1000 *  0.2