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Diffstat (limited to 'extras/hs-test/infra/cpu.go')
-rw-r--r--extras/hs-test/infra/cpu.go195
1 files changed, 152 insertions, 43 deletions
diff --git a/extras/hs-test/infra/cpu.go b/extras/hs-test/infra/cpu.go
index b5555d85b98..b26a06c98db 100644
--- a/extras/hs-test/infra/cpu.go
+++ b/extras/hs-test/infra/cpu.go
@@ -7,6 +7,7 @@ import (
. "github.com/onsi/ginkgo/v2"
"os"
"os/exec"
+ "strconv"
"strings"
)
@@ -18,80 +19,188 @@ type CpuContext struct {
}
type CpuAllocatorT struct {
- cpus []int
+ cpus []int
+ runningInCi bool
+ buildNumber int
+ maxContainerCount int
+}
+
+func iterateAndAppend(start int, end int, slice []int) []int {
+ for i := start; i <= end; i++ {
+ slice = append(slice, i)
+ }
+ return slice
}
var cpuAllocator *CpuAllocatorT = nil
func (c *CpuAllocatorT) Allocate(containerCount int, nCpus int) (*CpuContext, error) {
var cpuCtx CpuContext
+ // indexes, not actual cores
+ var minCpu, maxCpu int
- // splitting cpus into equal parts; this will over-allocate cores but it's good enough for now
- maxContainerCount := 4
- // skip CPU 0
- minCpu := ((GinkgoParallelProcess() - 1) * maxContainerCount * nCpus) + 1
- maxCpu := (GinkgoParallelProcess() * maxContainerCount * nCpus)
+ if c.runningInCi {
+ minCpu = ((c.buildNumber) * c.maxContainerCount * nCpus)
+ maxCpu = ((c.buildNumber + 1) * c.maxContainerCount * nCpus) - 1
+ } else {
+ minCpu = ((GinkgoParallelProcess() - 1) * c.maxContainerCount * nCpus)
+ maxCpu = (GinkgoParallelProcess() * c.maxContainerCount * nCpus) - 1
+ }
if len(c.cpus)-1 < maxCpu {
- err := fmt.Errorf("could not allocate %d CPUs; available: %d; attempted to allocate cores %d-%d",
- nCpus*containerCount, len(c.cpus)-1, minCpu, maxCpu)
+ err := fmt.Errorf("could not allocate %d CPUs; available count: %d; attempted to allocate cores with index %d-%d; max index: %d;\n"+
+ "available cores: %v", nCpus*containerCount, len(c.cpus), minCpu, maxCpu, len(c.cpus)-1, c.cpus)
return nil, err
}
+
if containerCount == 1 {
cpuCtx.cpus = c.cpus[minCpu : minCpu+nCpus]
- } else if containerCount > 1 && containerCount <= maxContainerCount {
+ } else if containerCount > 1 && containerCount <= c.maxContainerCount {
cpuCtx.cpus = c.cpus[minCpu+(nCpus*(containerCount-1)) : minCpu+(nCpus*containerCount)]
} else {
- return nil, fmt.Errorf("too many containers; CPU allocation for >%d containers is not implemented", maxContainerCount)
+ return nil, fmt.Errorf("too many containers; CPU allocation for >%d containers is not implemented", c.maxContainerCount)
}
-
cpuCtx.cpuAllocator = c
return &cpuCtx, nil
}
func (c *CpuAllocatorT) readCpus() error {
- var first, last int
-
- // Path depends on cgroup version. We need to check which version is in use.
- // For that following command can be used: 'stat -fc %T /sys/fs/cgroup/'
- // In case the output states 'cgroup2fs' then cgroups v2 is used, 'tmpfs' in case cgroups v1.
- cmd := exec.Command("stat", "-fc", "%T", "/sys/fs/cgroup/")
- byteOutput, err := cmd.CombinedOutput()
- if err != nil {
- return err
- }
- CpuPath := CgroupPath
- if strings.Contains(string(byteOutput), "tmpfs") {
- CpuPath += "cpuset/cpuset.effective_cpus"
- } else if strings.Contains(string(byteOutput), "cgroup2fs") {
- CpuPath += "cpuset.cpus.effective"
+ var first, second, third, fourth int
+ var file *os.File
+ var err error
+
+ if c.runningInCi {
+ // non-debug build runs on node0, debug on node1
+ if *IsDebugBuild {
+ file, err = os.Open("/sys/devices/system/node/node1/cpulist")
+ } else {
+ file, err = os.Open("/sys/devices/system/node/node0/cpulist")
+ }
+ if err != nil {
+ return err
+ }
+ defer file.Close()
+
+ sc := bufio.NewScanner(file)
+ sc.Scan()
+ line := sc.Text()
+ _, err = fmt.Sscanf(line, "%d-%d,%d-%d", &first, &second, &third, &fourth)
+ if err != nil {
+ return err
+ }
+
+ c.cpus = iterateAndAppend(first, second, c.cpus)
+ c.cpus = iterateAndAppend(third, fourth, c.cpus)
+ } else if NumaAwareCpuAlloc {
+ var fifth, sixth int
+ var tmpCpus []int
+
+ file, err := os.Open("/sys/devices/system/node/online")
+ if err != nil {
+ return err
+ }
+ defer file.Close()
+
+ sc := bufio.NewScanner(file)
+ sc.Scan()
+ line := sc.Text()
+ // get numa node range
+ _, err = fmt.Sscanf(line, "%d-%d", &first, &second)
+ if err != nil {
+ return err
+ }
+
+ for i := first; i <= second; i++ {
+ file, err := os.Open("/sys/devices/system/node/node" + fmt.Sprint(i) + "/cpulist")
+ if err != nil {
+ return err
+ }
+ defer file.Close()
+
+ // get numa node cores
+ sc := bufio.NewScanner(file)
+ sc.Scan()
+ line := sc.Text()
+ _, err = fmt.Sscanf(line, "%d-%d,%d-%d", &third, &fourth, &fifth, &sixth)
+ if err != nil {
+ return err
+ }
+
+ // get numa node cores from first range
+ tmpCpus = iterateAndAppend(third, fourth, tmpCpus)
+
+ // discard cpu 0
+ if tmpCpus[0] == 0 && !*UseCpu0{
+ tmpCpus = tmpCpus[1:]
+ }
+
+ // get numa node cores from second range
+ tmpCpus = iterateAndAppend(fifth, sixth, tmpCpus)
+
+ // make c.cpus divisible by maxContainerCount * nCpus, so we don't have to check which numa will be used
+ // and we can use offsets
+ count_to_remove := len(tmpCpus) % (c.maxContainerCount * *NConfiguredCpus)
+ c.cpus = append(c.cpus, tmpCpus[:len(tmpCpus)-count_to_remove]...)
+ tmpCpus = tmpCpus[:0]
+ }
} else {
- return errors.New("cgroup unknown fs: " + string(byteOutput))
- }
+ // Path depends on cgroup version. We need to check which version is in use.
+ // For that following command can be used: 'stat -fc %T /sys/fs/cgroup/'
+ // In case the output states 'cgroup2fs' then cgroups v2 is used, 'tmpfs' in case cgroups v1.
+ cmd := exec.Command("stat", "-fc", "%T", "/sys/fs/cgroup/")
+ byteOutput, err := cmd.CombinedOutput()
+ if err != nil {
+ return err
+ }
- file, err := os.Open(CpuPath)
- if err != nil {
- return err
- }
- defer file.Close()
-
- sc := bufio.NewScanner(file)
- sc.Scan()
- line := sc.Text()
- _, err = fmt.Sscanf(line, "%d-%d", &first, &last)
- if err != nil {
- return err
+ CpuPath := CgroupPath
+ if strings.Contains(string(byteOutput), "tmpfs") {
+ CpuPath += "cpuset/cpuset.effective_cpus"
+ } else if strings.Contains(string(byteOutput), "cgroup2fs") {
+ CpuPath += "cpuset.cpus.effective"
+ } else {
+ return errors.New("cgroup unknown fs: " + string(byteOutput))
+ }
+
+ file, err := os.Open(CpuPath)
+ if err != nil {
+ return err
+ }
+ defer file.Close()
+
+ sc := bufio.NewScanner(file)
+ sc.Scan()
+ line := sc.Text()
+ _, err = fmt.Sscanf(line, "%d-%d", &first, &second)
+ if err != nil {
+ return err
+ }
+ c.cpus = iterateAndAppend(first, second, c.cpus)
}
- for i := first; i <= last; i++ {
- c.cpus = append(c.cpus, i)
+
+ // discard cpu 0
+ if c.cpus[0] == 0 && !*UseCpu0 {
+ c.cpus = c.cpus[1:]
}
return nil
}
func CpuAllocator() (*CpuAllocatorT, error) {
if cpuAllocator == nil {
+ var err error
cpuAllocator = new(CpuAllocatorT)
- err := cpuAllocator.readCpus()
+ cpuAllocator.maxContainerCount = 4
+ buildNumberStr := os.Getenv("BUILD_NUMBER")
+
+ if buildNumberStr != "" {
+ cpuAllocator.runningInCi = true
+ // get last digit of build number
+ cpuAllocator.buildNumber, err = strconv.Atoi(buildNumberStr[len(buildNumberStr)-1:])
+ if err != nil {
+ return nil, err
+ }
+ }
+ err = cpuAllocator.readCpus()
if err != nil {
return nil, err
}