PAGE ACCESS FREQUENCY TRACKING
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United States of America Patent
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Issued Date -
Oct 24, 2024
app pub date -
Jun 10, 2022
filing date -
Jun 10, 2022
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Abstract
An apparatus comprises: memory access circuitry (11) to process memory access requests requesting access to a memory system (10, 32); and access frequency tracking circuitry (40). In response to a given memory access request requesting access to a given page of a memory address space, the access frequency tracking circuitry (40) determines an outcome of a chance-dependent test, where the outcome of the chance-dependent test is dependent on chance. When the outcome of the chance-dependent test is a first outcome, an access frequency tracking indicator corresponding to the given page is updated within an access frequency tracking structure. When the chance-dependent test has an outcome other than the first outcome. the access frequency tracking circuitry 40 omits updating of the access frequency tracking indicator corresponding to the given page.
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