Counter-based wide fetch management
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United States of America Patent
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Aug 9, 2016
Grant Date -
Oct 15, 2015
app pub date -
Apr 15, 2014
filing date -
Apr 15, 2014
priority date (Note) -
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Abstract
Embodiments relate to counter-based wide fetch management. An aspect includes assigning a counter to a first memory region in a main memory that is allocated to a first application that is executed by a processor of a computer. Another aspect includes maintaining, by the counter, a count of a number of times adjacent cache lines in the cache memory that correspond to the first memory region are touched by the processor. Another aspect includes determining an update to a data fetch width indicator corresponding to the first memory region based on the counter. Another aspect includes sending a hardware notification from a counter management module to supervisory software of the computer of the update to the data fetch width indicator. Yet another aspect includes updating, by the supervisory software, the data fetch width indicator of the first memory region in the main memory based on the hardware notification.
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