Abstract: A data management method includes obtaining a hot data set that includes hot data statistics information of at least one terminal device; performing data affinity classification on the hot data set to obtain a hot data subset corresponding to each of the at least one terminal device; and storing, into a first terminal, hot data in a first hot data subset other than hot data that has been stored in the first terminal, where the first hot data subset is a hot data subset corresponding to the first terminal.

Abstract: This application relates to example memory reclaim methods and apparatuses, so as to resolve a problem of application stalling easily caused by memory reclaim that is not performed in time. One example method includes monitoring user operation and use information and memory occupation information of applications installed on a terminal. If it is determined, according to at least one of the user operation and use information or the memory occupation information, that a memory reclaim condition is currently met, an application whose memory is to be reclaimed is determined according to the user operation and use information and memory occupation information of applications currently running on the terminal and from the applications currently running. A memory reclaim is performed by invoking a memory reclaim interface provided by a kernel mode.

Abstract: Embodiments of the present disclosure provide a DRAM-based storage caching method for a smart terminal, and the method includes: capturing an IO delivered by an upper-layer application; determining, based on a configuration policy, whether the IO belongs to a pre-specified to-be-cached IO type; and when the IO belongs to the pre-specified to-be-cached IO type, performing a corresponding caching operation for the IO in a DRAM disk based on a read/write type of the IO and a preset caching policy, where the DRAM disk is a block device created by using a reserved part of DRAM space of an operating system.

Abstract: This application relates to a memory reclaim method and apparatus, so as to resolve a problem of application stalling easily caused by memory reclaim that is not performed in time. The method includes: monitoring user operation and use information and memory occupation information of applications installed on a terminal; and if it is determined, according to at least one of the user operation and use information or the memory occupation information, that a memory reclaim condition is currently met, determining, according to user operation and use information and memory occupation information of applications currently running on the terminal and from the applications currently running on the terminal, an application whose memory is to be reclaimed, and performing memory reclaim by invoking a memory reclaim interface provided by a kernel mode.