Function GetSystemRAMInfo

pkg/xsysinfo/memory.go:53–77

GetSystemRAMInfo returns real-time system RAM usage

()

// GetSystemRAMInfo returns real-time system RAM usage
func GetSystemRAMInfo() (*SystemRAMInfo, error) {
	total := systemTotalMemory()
	available := memory.AvailableMemory()

	// AvailableMemory (MemAvailable) is virtualized by lxcfs, so in edge
	// cases it can exceed our corrected total; clamp to avoid an unsigned
	// underflow when computing Used.
	if available > total {
		available = total
	}

	used := total - available

	usagePercent := 0.0
	if total > 0 {
		usagePercent = float64(used) / float64(total) * 100
	}
	return &SystemRAMInfo{
		Total:        total,
		Used:         used,
		Free:         available,
		Available:    available,
		UsagePercent: usagePercent,
	}, nil
}