33 lines
819 B
Go
33 lines
819 B
Go
package watchdog
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// NewAdaptivePolicy creates a policy that forces GC when the usage surpasses a
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// user-configured percentage (factor) of the available memory.
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//
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// This policy recalculates the next target as usage+(limit-usage)*factor, and
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// forces immediate GC when used >= limit.
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func NewAdaptivePolicy(factor float64) PolicyCtor {
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return func(limit uint64) (Policy, error) {
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return &adaptivePolicy{
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factor: factor,
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limit: limit,
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}, nil
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}
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}
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type adaptivePolicy struct {
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factor float64
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limit uint64
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}
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var _ Policy = (*adaptivePolicy)(nil)
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func (p *adaptivePolicy) Evaluate(_ UtilizationType, used uint64) (next uint64, immediate bool) {
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if used >= p.limit {
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return used, true
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}
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available := float64(p.limit) - float64(used)
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next = used + uint64(available*p.factor)
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return next, false
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}
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