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78 lines
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HTML
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<h2 class="title" style="clear: both"><a id="mutex_set_align_parameter"></a>mutex_set_align</h2>
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<p>
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Sets the mutex alignment, in bytes. It is sometimes advantageous to
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align mutexes on specific byte boundaries in order to minimize
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cache line collisions. This parameter specifies an alignment for
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mutexes allocated by Berkeley DB.
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<p>
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The syntax of this parameter in the <a href="../../programmer_reference/env_db_config.html#env_db_config.DB_CONFIG" class="olink">DB_CONFIG</a> file is a single
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line with the string <code class="literal">mutex_set_align</code>, one or
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more whitespace characters, and the mutex alignment in bytes.
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Because the DB_CONFIG file is read when the database environment
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is opened, it will silently overrule configuration done before
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that time.
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For more information, see
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<a class="xref" href="mutexset_align.html" title="DB_ENV->mutex_set_align()">DB_ENV->mutex_set_align()</a>.
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