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DRA Kubelet: optimize UpdateAllocatedResourcesStatus claim lookup

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Use map for O(1) claim status lookup instead of O(n*m) nested loop.
This commit is contained in:
Ed Bartosh
2026-01-16 11:11:46 +02:00
parent 1f8bd2ffaa
commit 7b44affb55
1 changed files with 9 additions and 9 deletions
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18
pkg/kubelet/cm/dra/manager.go
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@@ -819,18 +819,18 @@ func (m *Manager) UpdateAllocatedResourcesStatus(pod *v1.Pod, status *v1.PodStat
}
}
// Build a map of pod claim statuses for O(1) lookup
podClaimStatusMap := make(map[string]string, len(pod.Status.ResourceClaimStatuses))
for _, podClaimStatus := range pod.Status.ResourceClaimStatuses {
if podClaimStatus.ResourceClaimName != nil {
podClaimStatusMap[podClaimStatus.Name] = *podClaimStatus.ResourceClaimName
}
}
// Iterate through the claims requested by this specific container.
for _, claim := range containerSpec.Resources.Claims {
// Find the actual name of the ResourceClaim object.
var actualClaimName string
for _, podClaimStatus := range pod.Status.ResourceClaimStatuses {
if podClaimStatus.Name == claim.Name {
if podClaimStatus.ResourceClaimName != nil {
actualClaimName = *podClaimStatus.ResourceClaimName
}
break
}
}
actualClaimName := podClaimStatusMap[claim.Name]
if actualClaimName == "" {
logger.V(4).Info("Could not find generated name for resource claim in pod status", "container", containerSpec.Name, "claimName", claim.Name)