INFORMATION DEVICE EQUIPPED WITH CACHE MEMORIES, APPARATUS AND PROGRAM USING THE SAME DEVICE

A read cache and a write cache are made up of two kinds of nonvolatile memories whose characteristics are different. For example, nonvolatile memory whose write endurance is high is assigned to the write cache, nonvolatile memory whose write endurance is low is assigned to the read cache, and the ma...

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Bibliographische Detailangaben
Hauptverfasser:	MIURA SEIJI, HIRATSUKA YUKIE, INAGAKI YUKIHIDE
Format:	Patent
Sprache:	eng
Schlagworte:	CALCULATING CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION ANDCOMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION ANDCOMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THIR OWNENERGY USE COMPUTING COUNTING ELECTRIC DIGITAL DATA PROCESSING GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS PHYSICS TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE
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Beschreibung
Zusammenfassung:	A read cache and a write cache are made up of two kinds of nonvolatile memories whose characteristics are different. For example, nonvolatile memory whose write endurance is high is assigned to the write cache, nonvolatile memory whose write endurance is low is assigned to the read cache, and the management tables of data in these caches are stored in the nonvolatile memory whose write endurance is high. Alternatively, nonvolatile memory that has a fast write speed but has a slow read speed is adopted for the write cache and nonvolatile memory that has a fast read speed but has a slow write speed is adopted for the read cache.