ost_delay</code> (<code class="type">floating point</code>)
       <a id="id-1.6.7.7.5.5.1.1.3" class="indexterm"></a>
       </span> <a href="#GUC-VACUUM-COST-DELAY" class="id_link">#</a></dt><dd><p>
         The amount of time that the process will sleep
         when the cost limit has been exceeded.
         If this value is specified without units, it is taken as milliseconds.
         The default value is zero, which disables the cost-based vacuum
         delay feature.  Positive values enable cost-b