Function systemTotalMemory

pkg/xsysinfo/memory.go:43–50

systemTotalMemory returns the container-aware total system RAM in bytes. memory.TotalMemory() reports the HOST kernel total (syscall.Sysinfo on Linux), which lxcfs/LXD does NOT virtualize. Inside a container that over-reports physical RAM and, combined with the virtualized MemAvailable, inflates th

()

// inflates the reported usage (see issue #8059). We instead derive the total
// from the minimum of all available container-aware candidates.
func systemTotalMemory() uint64 {
	return chooseTotalMemory(
		readFileBestEffort(cgroupV2MaxPath),
		readFileBestEffort(cgroupV1LimitPath),
		readFileBestEffort(procMemInfoPath),
		memory.TotalMemory(),
	)
}

// GetSystemRAMInfo returns real-time system RAM usage
func GetSystemRAMInfo() (*SystemRAMInfo, error) {