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- Page_cache abstract "In computing, a page cache, often called a disk cache,[citation needed] is a "transparent" cache of disk-backed pages kept in main memory (RAM) by the operating system for quicker access. A page cache is implemented in kernels with the paging memory management, and is mostly transparent to applications.Usually all physical memory that is not directly allocated to applications is used by the operating system for the page cache. Since the memory would otherwise be idle and is trivially reclaimed when applications request it, there is generally no associated performance penalty and the operating system might even report such memory as "free".Hard disk read/write speeds are low and random accesses require expensive disk seeks compared to main memory—this is why RAM upgrades usually yield significant improvements in computers' speed and responsiveness, because more disk pages can be cached in memory.[citation needed] Separate disk caching is provided on the hardware side, by dedicated RAM or NVRAM chips located either in disk controller (inside a hard disk drive; properly called disk buffer[citation needed]) or in a disk array controller. Such memory should not be confused with page cache.".
- Page_cache wikiPageExternalLink page-cache-the-affair-between-memory-and-files.
- Page_cache wikiPageID "8641313".
- Page_cache wikiPageRevisionID "602259280".
- Page_cache hasPhotoCollection Page_cache.
- Page_cache subject Category:Computer_memory.
- Page_cache subject Category:Computer_storage.
- Page_cache subject Category:Hard_disk_computer_storage.
- Page_cache subject Category:Memory_management.
- Page_cache comment "In computing, a page cache, often called a disk cache,[citation needed] is a "transparent" cache of disk-backed pages kept in main memory (RAM) by the operating system for quicker access. A page cache is implemented in kernels with the paging memory management, and is mostly transparent to applications.Usually all physical memory that is not directly allocated to applications is used by the operating system for the page cache.".
- Page_cache label "Page cache".
- Page_cache label "磁盘缓存".
- Page_cache sameAs m.027c4zq.
- Page_cache sameAs Q7124288.
- Page_cache sameAs Q7124288.
- Page_cache wasDerivedFrom Page_cache?oldid=602259280.
- Page_cache isPrimaryTopicOf Page_cache.