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PMH / cmmtalk-ye2000 / slide10.htm 

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    <TITLE>Other shared caches - shared memory</TITLE>
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    <H2>Other shared caches - shared memory</H2>
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      <TD>IPC::Cache
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      <TD>No max size
  
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      <TD>Not transparent
  
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      <TD>Uses shared memory
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      <TD>OS limit on amount of shm in use, and segment size
  
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      <TD>shm segments have 32 bit integer ids
  
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      <TD>shm locking survives process death
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      <TD>IPC::SharedCache
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      <TD>Tied hash interface
  
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      <TD>Transparent (read only)
  
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      <TD>Max size can be specified
  
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      <TD>Uses shared memory
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