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ExpressCache
ExpressCache is a Windows-based SSD caching technology developed by Condusiv Technologies and licensed to a number of laptop manufacturers including Acer〔(AnandTech | Acer R7 Review: Something Different )〕, ASUS〔(Driver & Tools: ExpressCache )〕, Samsung,〔(Samsung unveils Series 7 notebooks with ExpressCache - TechSpot )〕〔(Samsung Series 5 UltraTouch 13-inch Review | Windows 8 Laptop Reviews )〕 Sony,〔(Sony VAIO T14 Ultrabook Review - Out With Express Cache In With DataPlex For SandForce Driven Speed | The SSD Review )〕〔(ExpressCache Driver(Condusiv) Update version 1.0.98.0 : Download : Sony Middle East & Africa )〕 Lenovo,〔(Lenovo IdeaPad Y510p review | PC Pro )〕〔(ExpressCache software is not installed on ThinkPad and ThinkPad Edge systems with mSATA SSD device )〕 and Fujitsu.〔(Hands On: Fujitsu Lifebook U772 | News & Opinion | PCMag.com )〕〔(SanDisk SSD Technology Chosen for New Fujitsu Line of Ultrabook Computers | techPowerUp )〕 ExpressCache is also bundled with some SanDisk products〔(Diskeeper ExpressCache halves Windows boot time | Crave - CNET )〕〔(SanDisk First To Tackle OEM SSD Caching Solution - Computex 2012 Update | The SSD Review )〕 such as ReadyCache;〔(SanDisk announces 32GB ReadyCache for Windows: $55 at Amazon, keep your existing HDD )〕〔(HARDOCP - Specifications - SanDisk ReadyCache 32GB SSD Review )〕〔(CDRLabs.com - SanDisk ReadyCache Solid State Drive | Reviews | All-Pages )〕 SanDisk currently holds an exclusive ExpressCache license for stand-alone storage products.〔
A test by ''PC Pro'' of the 2011-launched Samsung 700Z, which included an 8 GB SSD and a 7200 rpm hard drive, showed a reduction of five seconds in boot time with Windows 7, when ExpressCache was enabled.〔 Another vendor's demo at Computex 2011, involving a laptop also equipped with an 8 GB SDD, showed a boot-time reduction of about ten seconds.〔
A test by ''CDRLabs'' of a stand-alone 32 GB SanDisk ReadyCache product, which was added to a quad-core desktop (Core i5-2400 CPU) equipped with a 7200 rpm hard drive, found a reduction in boot time from 25 down to 14 seconds, but found no significant improvements in random read/write tests.〔 Another similar test of a 32 GB ReadyCache product, conducted by ''HardOCP,'' found a reduction in boot time from 52 down to 13 seconds.〔 Yet another test by ''Expert Reviews'' found a boot time reduction from 48 down to 35 seconds.
A criticism against ExpressCache in ''PC Pro'' was that it "isn't very configurable. You can't, for instance, install an application of your choosing there."〔(Samsung 700Z Chronos review | PC Pro )〕 ''PC World France'' noted that the ExpressCache software bundled with ReadyCache has a limit of three computers on which it can be activated; their reviewer also expressed dismay at SanDisk's choice of using MLC flash on a caching product.
== See also ==
* bcache, dm-cache, and EnhanceIO on Linux
* Apple's Fusion Drive
* Hybrid array
* Hybrid drive
* Intel Smart Response Technology and Intel Turbo Memory
* Microsoft ReadyDrive and ReadyBoost
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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