12 lines
566 B
Text
12 lines
566 B
Text
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This module provides a shared memory cache accessed as a
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tied hash.
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Shared memory is an area of memory that is available to
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all processes. It is accessed by choosing a key, the
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ipc_key arguement to tie. Every process that accesses
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shared memory with the same key gets access to the same
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region of memory. In some ways it resembles a file
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system, but it is not hierarchical and it is resident in
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memory. This makes it harder to use than a filesystem but
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much faster. The data in shared memory persists until the
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machine is rebooted or it is explicitely deleted.
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