发明授权
- 专利标题: Using a flag to indicate whether a mapping entry points to sequentially stored data
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申请号: US18048364申请日: 2022-10-20
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公开(公告)号: US12099449B2公开(公告)日: 2024-09-24
- 发明人: Giuseppe Cariello , Jonathan S. Parry
- 申请人: Micron Technology, Inc.
- 申请人地址: US ID Boise
- 专利权人: Micron Technology, Inc.
- 当前专利权人: Micron Technology, Inc.
- 当前专利权人地址: US ID Boise
- 分案原申请号: US16870674 2020.05.08
- 主分类号: G06F12/1009
- IPC分类号: G06F12/1009
摘要:
Methods, systems, and devices for compressed logical-to-physical mapping for sequentially stored data are described. A memory device may use a hierarchical set of logical-to-physical mapping tables for mapping logical block address generated by a host device to physical addresses of the memory device. The memory device may determine whether all of the entries of a terminal logical-to-physical mapping table are consecutive physical addresses. In response to determining that all of the entries contain consecutive physical addresses, the memory device may store a starting physical address of the consecutive physical addresses as an entry in a higher-level table along with a flag indicating that the entry points directly to data in the memory device rather than pointing to a terminal logical-to-physical mapping table. The memory device may, for subsequent reads of data stored in one or more of the consecutive physical addresses, bypass the terminal table to read the data.
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