If you were to store the data in a real cache, then the system could discard parts of the cache to gain memory for other tasks because the client can always re-create the cached data.

如果要在真正的缓存中存储数据，则系统可能丢弃缓存的部分以获得用于其他任务的内存，这是因为通常客户机可以重新创建缓存的数据。