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  • Committer: Bazaar Package Importer
  • Author(s): Robert Ancell
  • Date: 2011-03-08 13:28:27 UTC
  • mfrom: (1.59.13 upstream)
  • Revision ID: james.westby@ubuntu.com-20110308132827-odxdwb2fdtji2avm
Tags: 2.28.2-0ubuntu1
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docs/reference/glib/html/glib-Memory-Slices.html
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<p>
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To achieve these goals, the slice allocator uses a sophisticated,
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layered design that has been inspired by Bonwick's slab allocator
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<sup>[<a name="id520048" href="#ftn.id520048" class="footnote">6</a>]</sup>.
 
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<sup>[<a name="id702649" href="#ftn.id702649" class="footnote">6</a>]</sup>.
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It uses <code class="function">posix_memalign()</code> to optimize allocations of many equally-sized
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chunks, and has per-thread free lists (the so-called magazine layer)
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to quickly satisfy allocation requests of already known structure sizes.
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object size used at allocation time is still available when freeing.
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</p>
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<div class="example">
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<a name="id488814"></a><p class="title"><b>Example 15. Using the slice allocator</b></p>
 
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<a name="id524327"></a><p class="title"><b>Example 15. Using the slice allocator</b></p>
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<div class="example-contents">
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  <table class="listing_frame" border="0" cellpadding="0" cellspacing="0">
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    <tbody>
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</div>
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<br class="example-break"><div class="example">
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<a name="id444348"></a><p class="title"><b>Example 16. Using the slice allocator with data structures</b></p>
 
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<a name="id585291"></a><p class="title"><b>Example 16. Using the slice allocator with data structures</b></p>
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<div class="example-contents">
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  <table class="listing_frame" border="0" cellpadding="0" cellspacing="0">
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    <tbody>
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</div>
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<div class="footnotes">
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<br><hr width="100" align="left">
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<div class="footnote"><p><sup>[<a id="ftn.id520048" href="#id520048" class="para">6</a>] </sup>
 
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<div class="footnote"><p><sup>[<a id="ftn.id702649" href="#id702649" class="para">6</a>] </sup>
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<a class="ulink" href="http://citeseer.ist.psu.edu/bonwick94slab.html" target="_top">[Bonwick94]</a> Jeff Bonwick, The slab allocator: An object-caching kernel
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memory allocator. USENIX 1994, and
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<a class="ulink" href="http://citeseer.ist.psu.edu/bonwick01magazines.html" target="_top">[Bonwick01]</a> Bonwick and Jonathan Adams, Magazines and vmem: Extending the