CACHE PREFETCHING

The embodiment of the disclosure relates to cache prefetching. An apparatus, a computer program and a method for prefetching a predetermined number of data items to a cache. The method comprises obtaining a list of candidate data items and associated scores thereof that comprises more candidate data items than the predetermined number of data items to be prefetched to the cache. The method comprises repeatedly selecting, based on scores of the candidate data items, a candidate data item from the list and determining whether to add the candidate data item to the cache. Determining whether to add the candidate data item to the cache comprises determining whether the candidate data item is retained by the cache; and in response to determining that the candidate data item is not retained by the cache, adding the candidate data item thereto. The repeatedly selecting and determining are performed until the predetermined number of data items is added to the cache. 本公开的实施例涉及高速缓存预取。一种装置、一种计算机程序和一种方法用于将预定数目的数据项预取到高速缓存。