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Combining scheduler priority functions using weighted averages

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This commit is contained in:
Abhishek Gupta
2014-11-25 18:10:25 -08:00
parent 7f374030c1
commit 13831856c9
10 changed files with 136 additions and 127 deletions
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9
pkg/scheduler/spreading.go
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@@ -39,7 +39,7 @@ func CalculateSpreadPriority(pod api.Pod, podLister PodLister, minionLister Mini
}
var maxCount int
var fScore float32
var fScore float32 = 10.0
counts := map[string]int{}
if len(pods) > 0 {
for _, pod := range pods {
@@ -59,10 +59,11 @@ func CalculateSpreadPriority(pod api.Pod, podLister PodLister, minionLister Mini
}
result := []HostPriority{}
//score int
//score int - scale of 0-10
// 0 being the lowest priority and 10 being the highest
for _, minion := range minions.Items {
if maxCount > 0 {
fScore = 100 * (float32(counts[minion.Name]) / float32(maxCount))
fScore = 10 * (float32(maxCount-counts[minion.Name]) / float32(maxCount))
}
result = append(result, HostPriority{host: minion.Name, score: int(fScore)})
}
@@ -70,5 +71,5 @@ func CalculateSpreadPriority(pod api.Pod, podLister PodLister, minionLister Mini
}
func NewSpreadingScheduler(podLister PodLister, minionLister MinionLister, predicates []FitPredicate, random *rand.Rand) Scheduler {
return NewGenericScheduler(predicates, []PriorityFunction{CalculateSpreadPriority}, podLister, random)
return NewGenericScheduler(predicates, []PriorityConfig{{Function: CalculateSpreadPriority, Weight: 1}}, podLister, random)
}