mirror of
https://github.com/ClusterCockpit/cc-metric-collector.git
synced 2024-09-20 07:27:25 +02:00
Fix for NumaDomain getter in ccTopology
This commit is contained in:
Thomas Roehl
parent
fdb58b0be2
commit
25bb395f02
@ -6,12 +6,17 @@ import (
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"log"
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"os"
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"path/filepath"
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"regexp"
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"strconv"
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"strings"
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cclogger "github.com/ClusterCockpit/cc-metric-collector/internal/ccLogger"
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)
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const SYSFS_NUMABASE = `/sys/devices/system/node`
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const SYSFS_CPUBASE = `/sys/devices/system/cpu`
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const PROCFS_CPUINFO = `/proc/cpuinfo`
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// intArrayContains scans an array of ints if the value str is present in the array
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// If the specified value is found, the corresponding array index is returned.
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// The bool value is used to signal success or failure
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@ -43,7 +48,7 @@ func fileToInt(path string) int {
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}
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func SocketList() []int {
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buffer, err := ioutil.ReadFile("/proc/cpuinfo")
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buffer, err := ioutil.ReadFile(string(PROCFS_CPUINFO))
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if err != nil {
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log.Print(err)
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return nil
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@ -68,7 +73,7 @@ func SocketList() []int {
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}
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func CpuList() []int {
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buffer, err := ioutil.ReadFile("/proc/cpuinfo")
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buffer, err := ioutil.ReadFile(string(PROCFS_CPUINFO))
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if err != nil {
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log.Print(err)
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return nil
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@ -93,7 +98,7 @@ func CpuList() []int {
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}
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func CoreList() []int {
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buffer, err := ioutil.ReadFile("/proc/cpuinfo")
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buffer, err := ioutil.ReadFile(string(PROCFS_CPUINFO))
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if err != nil {
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log.Print(err)
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return nil
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@ -118,36 +123,50 @@ func CoreList() []int {
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}
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func NumaNodeList() []int {
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numalist := make([]int, 0)
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files, err := filepath.Glob("/sys/devices/system/node/node*")
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numaList := make([]int, 0)
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globPath := filepath.Join(string(SYSFS_NUMABASE), "node*")
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regexPath := filepath.Join(string(SYSFS_NUMABASE), "node(\\d+)")
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regex := regexp.MustCompile(regexPath)
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files, err := filepath.Glob(globPath)
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if err != nil {
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log.Print(err)
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cclogger.ComponentError("CCTopology", "NumaNodeList", err.Error())
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}
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for _, f := range files {
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if !regex.MatchString(f) {
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continue
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}
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finfo, err := os.Lstat(f)
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if err == nil && (finfo.IsDir() || finfo.Mode()&os.ModeSymlink != 0) {
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var id int
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parts := strings.Split(f, "/")
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_, err = fmt.Scanf("node%d", parts[len(parts)-1], &id)
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if err != nil {
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continue
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}
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if !finfo.IsDir() {
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continue
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}
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matches := regex.FindStringSubmatch(f)
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if len(matches) == 2 {
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id, err := strconv.Atoi(matches[1])
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if err == nil {
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_, found := intArrayContains(numalist, int(id))
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if !found {
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numalist = append(numalist, int(id))
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if _, found := intArrayContains(numaList, id); !found {
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numaList = append(numaList, id)
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}
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}
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}
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}
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return numalist
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return numaList
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}
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func DieList() []int {
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cpulist := CpuList()
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dielist := make([]int, 0)
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for _, c := range cpulist {
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dieid := fileToInt(fmt.Sprintf("/sys/devices/system/cpu/cpu%d/topology/die_id", c))
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_, found := intArrayContains(dielist, int(dieid))
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if !found {
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dielist = append(dielist, int(dieid))
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diepath := filepath.Join(string(SYSFS_CPUBASE), fmt.Sprintf("cpu%d", c), "topology/die_id")
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dieid := fileToInt(diepath)
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if dieid > 0 {
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_, found := intArrayContains(dielist, int(dieid))
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if !found {
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dielist = append(dielist, int(dieid))
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}
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}
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}
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return dielist
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@ -196,14 +215,14 @@ func CpuData() []CpuEntry {
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getSMT := func(cpuid int, basepath string) int {
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buffer, err := ioutil.ReadFile(fmt.Sprintf("%s/thread_siblings_list", basepath))
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if err != nil {
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log.Print(err)
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cclogger.ComponentError("CCTopology", "CpuData:getSMT", err.Error())
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}
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threadlist := make([]int, 0)
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sbuffer := strings.Replace(string(buffer), "\n", "", -1)
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for _, x := range strings.Split(sbuffer, ",") {
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id, err := strconv.ParseInt(x, 10, 32)
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if err != nil {
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log.Print(err)
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cclogger.ComponentError("CCTopology", "CpuData:getSMT", err.Error())
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}
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threadlist = append(threadlist, int(id))
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}
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@ -216,18 +235,22 @@ func CpuData() []CpuEntry {
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}
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getNumaDomain := func(basepath string) int {
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files, err := filepath.Glob(fmt.Sprintf("%s/node*", basepath))
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globPath := filepath.Join(basepath, "node*")
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regexPath := filepath.Join(basepath, "node(\\d+)")
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regex := regexp.MustCompile(regexPath)
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files, err := filepath.Glob(globPath)
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if err != nil {
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log.Print(err)
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cclogger.ComponentError("CCTopology", "CpuData:getNumaDomain", err.Error())
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}
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for _, f := range files {
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finfo, err := os.Lstat(f)
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if err == nil && (finfo.IsDir() || finfo.Mode()&os.ModeSymlink != 0) {
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var id int
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parts := strings.Split(f, "/")
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_, err = fmt.Scanf("node%d", parts[len(parts)-1], &id)
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if err == nil {
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return id
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if err == nil && finfo.IsDir() {
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matches := regex.FindStringSubmatch(f)
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if len(matches) == 2 {
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id, err := strconv.Atoi(matches[1])
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if err == nil {
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return id
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}
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}
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}
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}
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@ -244,22 +267,24 @@ func CpuData() []CpuEntry {
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centry.Die = -1
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centry.Core = -1
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// Set base directory for topology lookup
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base := fmt.Sprintf("/sys/devices/system/cpu/cpu%d/topology", centry.Cpuid)
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cpustr := fmt.Sprintf("cpu%d", centry.Cpuid)
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base := filepath.Join("/sys/devices/system/cpu", cpustr)
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topoBase := filepath.Join(base, "topology")
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// Lookup CPU core id
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centry.Core = getCore(base)
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centry.Core = getCore(topoBase)
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// Lookup CPU socket id
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centry.Socket = getSocket(base)
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centry.Socket = getSocket(topoBase)
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// Lookup CPU die id
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centry.Die = getDie(base)
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centry.Die = getDie(topoBase)
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if centry.Die < 0 {
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centry.Die = centry.Socket
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}
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// Lookup SMT thread id
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centry.SMT = getSMT(centry.Cpuid, base)
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centry.SMT = getSMT(centry.Cpuid, topoBase)
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// Lookup NUMA domain id
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centry.Numadomain = getNumaDomain(base)
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@ -280,34 +305,34 @@ type CpuInformation struct {
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func CpuInfo() CpuInformation {
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var c CpuInformation
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smt := 0
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numa := 0
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die := 0
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socket := 0
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core := 0
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smtList := make([]int, 0)
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numaList := make([]int, 0)
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dieList := make([]int, 0)
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socketList := make([]int, 0)
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coreList := make([]int, 0)
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cdata := CpuData()
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for _, d := range cdata {
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if d.SMT > smt {
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smt = d.SMT
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if _, ok := intArrayContains(smtList, d.SMT); !ok {
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smtList = append(smtList, d.SMT)
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}
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if d.Numadomain > numa {
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numa = d.Numadomain
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if _, ok := intArrayContains(numaList, d.Numadomain); !ok {
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numaList = append(numaList, d.Numadomain)
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}
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if d.Die > die {
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die = d.Die
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if _, ok := intArrayContains(dieList, d.Die); !ok {
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dieList = append(dieList, d.Die)
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}
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if d.Socket > socket {
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socket = d.Socket
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if _, ok := intArrayContains(socketList, d.Socket); !ok {
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socketList = append(socketList, d.Socket)
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}
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if d.Core > core {
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core = d.Core
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if _, ok := intArrayContains(coreList, d.Core); !ok {
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coreList = append(coreList, d.Core)
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}
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}
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c.NumNumaDomains = numa + 1
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c.SMTWidth = smt + 1
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c.NumDies = die + 1
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c.NumCores = core + 1
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c.NumSockets = socket + 1
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c.NumNumaDomains = len(numaList)
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c.SMTWidth = len(smtList)
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c.NumDies = len(dieList)
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c.NumCores = len(coreList)
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c.NumSockets = len(socketList)
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c.NumHWthreads = len(cdata)
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return c
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}
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