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PMH / cmmtalk-ye2000 / slide12.htm 

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    <TITLE>Benefits of Cache::Mmap</TITLE>
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    <H2>Benefits of Cache::Mmap</H2>
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      <TD>Uses standard files mmap()'d into process memory space
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      <TD>only ever one file opened per cache
  
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      <TD>max size always specified
  
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      <TD>possible size only limited by disk space and VM size
  
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      <TD>file split into "buckets", which are locked individually
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      <TD>Allows concurrent access (to different buckets)
  
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      <TD>Locks automatically removed by OS if process dies prematurely
  
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      <TD>Transparent (read, write, delete)
  
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      <TD>Write-through or write when necessary
  
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      <TD>Can cache complex data structures (using Storable) or plain strings
  
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      <TD>User-definable filenames (cf IPC::Cache, File::Cache)
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