(ctx context.Context)
| 30 | } |
| 31 | |
| 32 | func topologyNodes(ctx context.Context) []*Node { |
| 33 | paths := linuxpath.New(ctx) |
| 34 | nodes := make([]*Node, 0) |
| 35 | |
| 36 | files, err := os.ReadDir(paths.SysDevicesSystemNode) |
| 37 | if err != nil { |
| 38 | log.Warn(ctx, "failed to determine nodes: %s\n", err) |
| 39 | return nodes |
| 40 | } |
| 41 | for _, file := range files { |
| 42 | filename := file.Name() |
| 43 | if !strings.HasPrefix(filename, "node") { |
| 44 | continue |
| 45 | } |
| 46 | node := &Node{} |
| 47 | nodeID, err := strconv.Atoi(filename[4:]) |
| 48 | if err != nil { |
| 49 | log.Warn(ctx, "failed to determine node ID: %s\n", err) |
| 50 | return nodes |
| 51 | } |
| 52 | node.ID = nodeID |
| 53 | cores, err := cpu.CoresForNode(ctx, nodeID) |
| 54 | if err != nil { |
| 55 | log.Warn(ctx, "failed to determine cores for node: %s\n", err) |
| 56 | return nodes |
| 57 | } |
| 58 | node.Cores = cores |
| 59 | caches, err := memory.CachesForNode(ctx, nodeID) |
| 60 | if err != nil { |
| 61 | log.Warn(ctx, "failed to determine caches for node: %s\n", err) |
| 62 | return nodes |
| 63 | } |
| 64 | node.Caches = caches |
| 65 | |
| 66 | distances, err := distancesForNode(paths, nodeID) |
| 67 | if err != nil { |
| 68 | log.Warn(ctx, "failed to determine node distances for node: %s\n", err) |
| 69 | return nodes |
| 70 | } |
| 71 | node.Distances = distances |
| 72 | |
| 73 | area, err := memory.AreaForNode(paths, nodeID) |
| 74 | if err != nil { |
| 75 | log.Warn(ctx, "failed to determine memory area for node: %s\n", err) |
| 76 | return nodes |
| 77 | } |
| 78 | node.Memory = area |
| 79 | |
| 80 | nodes = append(nodes, node) |
| 81 | } |
| 82 | return nodes |
| 83 | } |
| 84 | |
| 85 | func distancesForNode(paths *linuxpath.Paths, nodeID int) ([]int, error) { |
| 86 | path := filepath.Join( |
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