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Set initial map size

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Signed-off-by: Aldo Culquicondor <acondor@google.com>
This commit is contained in:
Aldo Culquicondor 2020-03-30 17:10:48 -04:00
parent 65d9f81758
commit 93fc02cf54
1 changed files with 10 additions and 1 deletions
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11
pkg/scheduler/framework/plugins/podtopologyspread/filtering.go
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@ -223,7 +223,7 @@ func (pl *PodTopologySpread) calPreFilterState(pod *v1.Pod) (*preFilterState, er
s := preFilterState{
Constraints: constraints,
TpKeyToCriticalPaths: make(map[string]*criticalPaths, len(constraints)),
TpPairToMatchNum: make(map[topologyPair]*int32),
TpPairToMatchNum: make(map[topologyPair]*int32, sizeHeuristic(len(allNodes), constraints)),
}
for _, n := range allNodes {
node := n.Node()
@ -328,3 +328,12 @@ func (pl *PodTopologySpread) Filter(ctx context.Context, cycleState *framework.C
return nil
}
func sizeHeuristic(nodes int, constraints []topologySpreadConstraint) int {
for _, c := range constraints {
if c.TopologyKey == v1.LabelHostname {
return nodes
}
}
return 0
}