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{{Short description|CPU architecture component}}
A '''data memory-dependent prefetcher''' ('''DMP''') is a [[Prefetching (computing)|cache prefetcher]] that looks at [[Cache (computing)|cache memory]] content for possible [[Pointer (computer programming)|pointer]] values, and prefetches the data at those locations into cache if it sees memory access patterns that suggest following those pointers would be useful.<ref name=":0">{{Cite web |date=2022-05-02 |title=Augury: Using Data Memory-Dependent Prefetchers to Leak Data at Rest |url=https://www.prefetchers.info/ |access-date=2024-03-30 |website=www.prefetchers.info}}</ref><ref>{{Cite conference |last1=Vicarte |first1=Jose Rodrigo Sanchez |last2=Flanders |first2=Michael |last3=Paccagnella |first3=Riccardo |last4=Garrett-Grossman |first4=Grant |last5=Morrison |first5=Adam |last6=Fletcher |first6=Christopher W. |last7=Kohlbrenner |first7=David |date=May 2022 |title=Augury: Using Data Memory-Dependent Prefetchers to Leak Data at Rest
As of 2022, data prefetching was already a common feature in CPUs,<ref>{{cite arXiv |last1=Bakhshalipour |first1=Mohammad |title=A Survey on Recent Hardware Data Prefetching Approaches with An Emphasis on Servers |date=2020-09-01 |eprint=2009.00715 |last2=Shakerinava |first2=Mehran |last3=Golshan |first3=Fatemeh |last4=Ansari |first4=Ali |last5=Lotfi-Karman |first5=Pejman |last6=Sarbazi-Azad |first6=Hamid|class=cs.AR }}</ref> but most prefetchers do not inspect the data within the cache for pointers, instead working by monitoring memory access patterns. Data memory-dependent prefetchers take this one step further.
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