a:3:{s:7:"#markup";O:25:"Drupal\Core\Render\Markup":1:{s:9:"*string";s:1096:"<span>Memory efficiency</span>

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<p>Yaffs has a lower memory footprint than most other log-structured Flash file systems.&nbsp; Because it is log-structured, RAM is required to build up runtime data structures for acceptable performance. As a rule of thumb, Yaffs uses approximately 2 bytes per chunk of NAND flash, where a chunk is typically one page of NAND. For NAND with 512byte pages, a budget of approximately 4kbytes of RAM per 1Mbyte of NAND is usually sensible. And for 2kbyte page devices a budget of approximately 1kbyte per 1Mbyte of NAND usually suffices.</p>
<p>You can find out details of Yaffs memory use in the document&nbsp; <a href="http://www.yaffs.net/documents/how-yaffs-works">http://www.yaffs.net/documents/how-yaffs-works</a></p>
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