Method and apparatus for data preheating
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United States of America Patent
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Feb 14, 2017
Grant Date -
Sep 4, 2014
app pub date -
May 15, 2014
filing date -
Nov 18, 2011
priority date (Note) -
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status (Latency Note)
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Abstract
Embodiments of the present invention disclose a method and an apparatus for data preheating, which relate to database technologies, so as to increase a responding speed of a database system, reduce frequent IO on a magnetic disk, and improve overall performance of the database system. The method includes: when a database is started, reading hit ratio information from a flash memory device and reading user configuration information from a hard disk; obtaining a union set of a preset hot data table in the user configuration information and a hot data table in the hit ratio information; determining the total number of to-be-loaded hot data blocks from the union set; according to the storage proportions, determining the to-be-loaded hot data block to be stored into a shared buffer and the flash memory device; and separately storing the to-be-loaded hot data block into the shared buffer and the flash memory device.
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