Nexus 7（2012）のファイルシステムをNANDフラッシュ用に開発されたF2FS（Flash-Friendly File System）に変更して、端末のI/O性能を高めようという実験的な開発作業がXDA Developersで進められています。 F2FSは、Samsungが中心となって開発したSSDやeMMC、SDメモリなどのNAND型フラッシュメモリに特化したファイルシステムで、Linuxカーネル3.8でメインラインにマージされました。特にNANDフラッシュへのランダムライトで他のファイルシステムよりも良い性能を発揮するとされています。ちなみに、F2FSはMoto Xなど一部のAndroid端末では既に採用されています。 ストレージのI/O性能が改善されるとプチフリといった現象が軽減され、体感的にも動作が軽くなった印象を受けるはずです。 XDA Developersで公開された導
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