Another way to implement atomic updates is with shadow paging, which is not in-place.
2.
Shadow paging is a copy-on-write technique for avoiding in-place updates of pages.
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If the referring pages must also be updated via shadow paging, this procedure may recurse many times, becoming quite costly.
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A VMware research paper found that RVI offers up to 42 % gains in performance compared with software-only ( shadow page table ) implementation.
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Shadow paging is similar to the "'old master & ndash; new master "'batch processing technique used in mainframe database systems.
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In computer science, "'shadow paging "'is a technique for providing durability ( two of the ACID properties ) in database systems.
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Starting in version 6.0, " shadow paging " was used instead of pre-imaging, and it is still used to this day.
8.
:The history of the Mr . Shadow page shows that it was created as a redirect to The Fifth Element and except for a few instances of vandalism never had any other content.
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The debut album from The Nick Hexum Quintet, titled " My Shadow Pages " was released on October 1, 2013, on What Have You Records via a partnership with INgrooves and Fontana.
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Since the shadow page has no references ( from other pages on disk ), it can be modified liberally, without concern for consistency constraints, etc . When the page is ready to become atomic.