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公开(公告)号：EP4261670A1
公开(公告)日：2023-10-18
申请号：EP21914426.8
申请日：2021-12-28
发明人： WANG, Haixin , DONG, Ruliang , WU, Pei , TU, Jianhong
IPC分类号： G06F3/06
摘要： A data prefetch method is disclosed. Before data is prefetched, a first data access request is first obtained, and a data prefetch policy is determined based on the first data access request and a data lifecycle, so that a first data set stored in a second storage medium is stored into a first storage medium according to the data prefetch policy. The first data set includes at least one piece of data, the data prefetch policy includes at least a prefetch length, the data lifecycle indicates duration for storing data in the first storage medium, and a read/write access rate of the second storage medium is less than that of the first storage medium. In this way, a prefetch length for prefetching data at a single time is dynamically adjusted in an adaptive manner, so that data of a proper length may be prefetched to the first storage medium in advance for a next data access request based on a previous data access request, to avoid as much as possible that excessively much or excessively little data is prefetched at the single time.
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公开(公告)号：EP4290775A1
公开(公告)日：2023-12-13
申请号：EP22778332.1
申请日：2022-01-24
发明人： WU, Jinkang , TU, Jianhong , SHEN, Jianqiang , QUAN, Shaohui
IPC分类号： H03M7/30
摘要： This application provides a data compression method, including: To-be-compressed data and a length limit value for data compression is obtained. When a length of data obtained by compressing the to-be-compressed data is greater than the length limit value, the to-be-compressed data is segmented based on the length limit value in a process of compressing the to-be-compressed data, so that the to-be-compressed data includes at least two compressed files after compression, and a length of each compressed file is less than the length limit value. In this way, application requirements are met.
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公开(公告)号：EP4394573A1
公开(公告)日：2024-07-03
申请号：EP22871446.5
申请日：2022-05-30
发明人： TU, Jianhong , DONG, Ruliang , ZHANG, Jinyi , WU, Pei
IPC分类号： G06F3/06
摘要： This application provides a data processing method, including: obtaining a parameter related to performance of a memory of a storage node, adjusting an aggregation policy based on the parameter, aggregating a first input output IO request in the memory into a second IO request based on an adjusted aggregation policy, and performing persistent storage on data corresponding to the second IO request. On one hand, the storage node aggregates small IO requests into a large IO request, so as to avoid impact of the small IO requests on performance of an entire distributed storage system. On the other hand, the aggregation policy is adaptively adjusted, it can be avoided that the memory is quickly full due to aggregation performed based on an aggregation policy with a fixed parameter, thereby affecting overall performance of a distributed storage system.
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