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The difference between in-memory database and traditional database computing model
Traditional databases are built based on the file system on the hard disk. The calculation of the traditional database relies on the rotation speed of the hard disk and the mechanical reading head. The data mechanical operation mode.
The in-memory database is built on the system in the memory.
The calculation mode is a purely electronic mode, and its calculation data depends on the read speed of the memory shift register and the main frequency of the memory stick, such as DDR3
133MHZ.
Therefore, in-memory data is not on the same order of magnitude as traditional databases in terms of computing speed or data throughput. There is basically no comparability between the two.
Traditional databases have single links per link. The speed of reading data from the hard disk is only 100~200 times per second.
The number of data reads per second from the MillionsDB in-memory database is 2 million times.
The response data for a single data query is only is 0.5 microseconds.
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