evictionmethods

const (
	// EvictionMethodOldest indicates that a time series cache object only holds values newer than an explicit date,
	// called the Oldest Cacheable Timestamp, which is calculated with this formula on each request:
	// time.Now().Add(-(config.ValueRetentionFactor * query.Step))
	// This policy is the more performant methodology, because out-of-cache-range determination does not require querying
	// the cache; thus the cache is only accessed for requests that are pre-determined to be cacheable
	EvictionMethodOldest = TimeseriesEvictionMethod(iota)
	// EvictionMethodLRU indicates a that a time series cache object hold up to ValueRetentionFactor number of
	// unique timestamps, removing the least-recently-used timestamps as necessary to to remain at the ValueRetentionFactor
	// This policy is the more compute-intensive, since we must maintain an LRU on each timestamp in each cache object,
	// and retrieve the object from cache on each request
	EvictionMethodLRU
)