Infrastructure for spilling pages to a persistent store
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United States of America Patent
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Jan 8, 2013
Grant Date -
Sep 2, 2010
app pub date -
Mar 2, 2009
filing date -
Mar 2, 2009
priority date (Note) -
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status (Latency Note)
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Abstract
Techniques for managing memory usage in a processing system are provided. This may be achieved by receiving a data stream including multiple tuples and determining a query plan that was generated for a continuous query applied to the multiple tuples in the data stream. The query plan may include one or more operators. Before scheduling an operator in the query plan, it is determined when an eviction is to be performed based a level of free memory of the processing system. An eviction candidate is determined and a page associated with the eviction candidate is evicted from the memory to a persistent storage.
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