Method eliminate

cache/lfu.go:120–127

eliminate clear the least frequently operated element

()

// eliminate clear the least frequently operated element
func (c *LFU) eliminate() {
	l := c.freqMap[c.minFreq]
	e := l.Back()
	obj := e.Value.(item)
	l.Remove(e)

	delete(c.itemMap, obj.key)
}