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        <h1 class="page-header">Search for ram</h1>

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<h2>Search results</h2><ol><li>
<h3>
  <a href="https://yaffs.net/yaffs-talk-slide-13-filesystem-ram-data-structures">YAFFS talk - Slide 13 - Filesystem RAM Data Structures</a>
</h3>

  <p>YAFFS talk - Slide 13 - Filesystem <strong>RAM</strong> Data Structures  

              
  
      
  
  
  
  …</p>
  <p></p>
</li><li>
<h3>
  <a href="https://yaffs.net/documents/faq">FAQ</a>
</h3>

  <p>…  be obtained, with knock-on effects in other parameters like <strong>RAM</strong> usage.  

    How many files can there be?    

  There is no hard limit. Available flash and <strong>RAM</strong> will limit this.  

    What about directories etc?    …  extended attributes and Unicode.  

    How much <strong>RAM</strong> does it need?    

  This depends particularly on the …</p>
  <p><span lang="" about="/user/admin" typeof="schema:Person" property="schema:name" datatype="">Admin</span> - 2 Jun 2017 - 1:56pm</p>
</li><li>
<h3>
  <a href="https://yaffs.net/documents/yaffs-vxworks">Yaffs for VxWorks</a>
</h3>

  <p>…  been used successfully with NOR flash systems and even as a <strong>RAM</strong> file system. This allows high reliability file systems …  well as providing a NAND file system, YDI also provides a <strong>RAM</strong> emulation layer to allow Yaffs to operate as a <strong>RAM</strong> file system too. While the <strong>RAM</strong> emulation is perhaps not …</p>
  <p><span lang="" about="/user/admin" typeof="schema:Person" property="schema:name" datatype="">Admin</span> - 2 Jun 2017 - 2:40pm</p>
</li><li>
<h3>
  <a href="https://yaffs.net/documents/how-yaffs-works">How Yaffs works</a>
</h3>

  <p>…  Yaffs has also been used as a NOR file system and even as a <strong>RAM</strong> file system.  
  3 Design and coding strategies  
  …  then create a new copy and delete the original. Fix up the <strong>RAM</strong> data structures to reflect the change.  
   
  
  Once …  deletion in Yaffs2. The chunks are marked as deleted in the <strong>RAM</strong> data structures used by garbage collection etc, but …</p>
  <p><span lang="" about="/user/charles-manning" typeof="schema:Person" property="schema:name" datatype="">Charles Manning</span> - 27 Jun 2017 - 3:33am</p>
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<h3>
  <a href="https://yaffs.net/archives/yaffs-original-specification">Yaffs Original Specification</a>
</h3>

  <p>…  file systems scale particularly well in both boot time and <strong>RAM</strong> usage. Scaling is particularly relevant when one …  NAND is available as a single chip.  

  JFFS requires a <strong>RAM</strong>-based jffs_node structure for each journalling node in …  strategies.  
	  
	  
	  Significantly reduce the <strong>RAM</strong> overheads and boot times associated with JFFSx.  
	  
   …</p>
  <p></p>
</li><li>
<h3>
  <a href="https://yaffs.net/documents/yaffs-direct-interface">Yaffs Direct Interface</a>
</h3>

  <p>…  been used successfully with NOR flash systems and even as a <strong>RAM</strong> file system. This allows high reliability file systems …  well as providing a NAND file system, YDI also provides a <strong>RAM</strong> emulation layer to allow Yaffs to operate as a <strong>RAM</strong> file system too. While the <strong>RAM</strong> emulation is perhaps not …</p>
  <p><span lang="" about="/user/admin" typeof="schema:Person" property="schema:name" datatype="">Admin</span> - 7 Jun 2017 - 11:53pm</p>
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<h3>
  <a href="https://yaffs.net/documents/considerations-choosing-flash-file-system">Considerations in Choosing a Flash File System</a>
</h3>

  <p>…  same tables. By delaying those writes and holding data in <strong>RAM</strong> briefly the file system can do fewer writes to achieve …    
      Data which has not been written but just cached in <strong>RAM</strong> is vulnerable while it is there; it can all be lost if …</p>
  <p><span lang="" about="/user/laurie" typeof="schema:Person" property="schema:name" datatype="">Laurie</span> - 25 Jul 2017 - 2:40pm</p>
</li><li>
<h3>
  <a href="https://yaffs.net/features/memory-efficiency">Memory efficiency</a>
</h3>

  <p>…  Flash file systems.  Because it is log-structured, <strong>RAM</strong> is required to build up runtime data structures for …  with 512byte pages, a budget of approximately 4kbytes of <strong>RAM</strong> per 1Mbyte of NAND is usually sensible. And for 2kbyte …</p>
  <p></p>
</li><li>
<h3>
  <a href="https://yaffs.net/licences-more-background-and-detail">Licences - more background and detail</a>
</h3>

  <p>…  of files, and it is economical on other resources such as <strong>RAM</strong>.  Like everyone else, Licence Holders have access to …</p>
  <p></p>
</li><li>
<h3>
  <a href="https://yaffs.net/archives/yaffs-development-notes">Yaffs (Yaffs1) Development Notes</a>
</h3>

  <p>…  top of real NAND flash, but yaffs can be built to run on a <strong>RAM</strong> emulation layer for in-kernel testing without NAND flash …  it out  
  Yaffs1 can be built to run with either mtd or <strong>RAM</strong> emulation, or both. The file system that interfaces to mtd is called   yaffs  , the file system that uses internal <strong>ram</strong> is called   yaffsram  . Yaffs1 simultaneously supports …</p>
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