Data storage device and storage control method based on log-structured merge tree
US12339823B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Apr 1, 2023 |
| Grant date | Jun 24, 2025 |
| Priority date | — |
| Expiry date | Aug 13, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/24569
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The present disclosure relates to a data storage device and a storage control method based on a log-structured merge tree. The log-structured merge tree comprises a plurality of SST files stored on at least one storage medium. The storage control method comprises: using a first filter to obtain the SST file set matched by the query key; using a second filter to globally sort the matching tags in the SST file set to generate a global tag set; the global tag set selects SST files to perform file IO operations to read key-value pairs. The storage control method selects the SST file to perform file IO operations according to the global tag set, thereby reducing the number of file IO operations in data reading operations, further improving file IO efficiency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.