Database system load scheduling method
A scheduling method and database technology, applied in the database field, can solve problems such as insufficient granularity
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[0017] Query response time prediction model:
[0018] The prediction model in the present invention performs prediction by querying combination similarity. In layman's terms, query combinations with similar characteristics will exhibit similar response times. The prediction model needs a query combination operation record table, which is used to record the response time of each query in the query combination that the database system has run. The specific implementation steps of the similarity prediction model are as follows:
[0019] 1) Get the response time of the query in the database when it is run alone Response time when running concurrently with pairwise
[0020] 2) For each query q i Calculate its query rating vector: in
[0021] 3) According to the query rating vector, calculate the "distance" between any two queries:
[0022]
[0023] 4) According to the distance between any two queries, calculate the distance between two query combinations containin...
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