Data reading method and device
A data reading and data technology, applied in the computer field, can solve problems such as low data reading efficiency, and achieve the effects of avoiding IOPS parameter restrictions, improving efficiency, and reducing the number of I/O requests.
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[0027] The implementation of the present invention will be described in detail below with reference to the drawings and examples, so as to fully understand and implement the implementation process of how to use technical means to solve technical problems and achieve technical effects in the present invention.
[0028] For the data volume of one page size for each I / O request that exists, the problem of low data reading efficiency will be caused. The inventors of the present application have found that the existing InnoDB database engine provides a pre-reading scheme, which The working principle is: in the process of scanning the leaf node page (leaf page), an asynchronous background thread is started to perform asynchronous pre-reading of the next leaf node page in advance to improve the reading efficiency, but each I / O The request is still for the data of a leaf node page. The improvement of reading efficiency lies in the pre-reading of asynchronous threads. The overall number...
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