清除高速缓存对象减少了它的内存量。
按“X”确认并永久清除高速缓存的数据。
Press 'X' to acknowledge and permanently destroy the cached data.
一个变通方法是使用一个能在需要时存储条目而在过了有效期后清除条目的自清除高速缓存(self - pruning cache)。
An alternative approach is to have a self-pruning cache that stores entries, as needed, but prunes them at an expiration time.
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