deps: Bump cAdvisor to v0.46.0

Signed-off-by: David Porter <david@porter.me>

vendor/github.com/google/cadvisor/utils/sysfs/sysfs.go

@@ -38,6 +38,8 @@ const (
 
 	meminfoFile = "meminfo"
 
+	distanceFile = "distance"
+
 	sysFsCPUTopology = "topology"
 
 	// CPUPhysicalPackageID is a physical package id of cpu#. Typically corresponds to a physical socket number,
@@ -113,6 +115,10 @@ type SysFs interface {
 	GetCacheInfo(cpu int, cache string) (CacheInfo, error)
 
 	GetSystemUUID() (string, error)
+
+	// GetDistances returns distance array
+	GetDistances(string) (string, error)
+
 	// IsCPUOnline determines if CPU status from kernel hotplug machanism standpoint.
 	// See: https://www.kernel.org/doc/html/latest/core-api/cpu_hotplug.html
 	IsCPUOnline(dir string) bool
@@ -161,6 +167,15 @@ func (fs *realSysFs) GetMemInfo(nodePath string) (string, error) {
 	return strings.TrimSpace(string(meminfo)), err
 }
 
+func (fs *realSysFs) GetDistances(nodePath string) (string, error) {
+	distancePath := fmt.Sprintf("%s/%s", nodePath, distanceFile)
+	distance, err := ioutil.ReadFile(distancePath)
+	if err != nil {
+		return "", err
+	}
+	return strings.TrimSpace(string(distance)), err
+}
+
 func (fs *realSysFs) GetHugePagesInfo(hugePagesDirectory string) ([]os.FileInfo, error) {
 	return ioutil.ReadDir(hugePagesDirectory)
 }

vendor/github.com/google/cadvisor/utils/sysinfo/sysinfo.go

@@ -243,6 +243,11 @@ func GetNodesInfo(sysFs sysfs.SysFs) ([]info.Node, int, error) {
 			return nil, 0, err
 		}
 
+		node.Distances, err = getDistances(sysFs, nodeDir)
+		if err != nil {
+			return nil, 0, err
+		}
+
 		nodes = append(nodes, node)
 	}
 	return nodes, allLogicalCoresCount, err
@@ -391,6 +396,27 @@ func getNodeMemInfo(sysFs sysfs.SysFs, nodeDir string) (uint64, error) {
 	return uint64(memory), nil
 }
 
+// getDistances returns information about distances between NUMA nodes
+func getDistances(sysFs sysfs.SysFs, nodeDir string) ([]uint64, error) {
+	rawDistance, err := sysFs.GetDistances(nodeDir)
+	if err != nil {
+		//Ignore if per-node info is not available.
+		klog.Warningf("Found node without distance information, nodeDir: %s", nodeDir)
+		return nil, nil
+	}
+
+	distances := []uint64{}
+	for _, distance := range strings.Split(rawDistance, " ") {
+		distanceUint, err := strconv.ParseUint(distance, 10, 64)
+		if err != nil {
+			return nil, fmt.Errorf("cannot convert %s to int", distance)
+		}
+		distances = append(distances, distanceUint)
+	}
+
+	return distances, nil
+}
+
 // getCoresInfo returns information about physical cores
 func getCoresInfo(sysFs sysfs.SysFs, cpuDirs []string) ([]info.Core, error) {
 	cores := make([]info.Core, 0, len(cpuDirs))