fix #863 Swap.UsedPercent is inconsistent
@ -84,7 +84,7 @@ func SwapMemoryWithContext(ctx context.Context) (*SwapMemoryStat, error) {
if tot == 0 {
usedPercent = 0
} else {
usedPercent = float64(used) / float64(tot)
usedPercent = float64(used) / float64(tot) * 100
}
ret := &SwapMemoryStat{
Total: tot,