status-go/vendor/github.com/raulk/go-watchdog/adaptive.go

32 lines
743 B
Go

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