      above what you get at 1ms will require changing the other vacuum cost
         parameters.  You should, nonetheless,
         keep <code class="varname">vacuum_cost_delay</code> as small as your platform
         will consistently measure; large delays are not helpful.
        </p></dd><dt id="GUC-VACUUM-COST-PAGE-HIT"><span class="term"><code class="varname">vacuum_cost_page_hit</code> (<code class="type">integer</code>)
       <a id="id-1.6.7.7.5.5.2.1.3" class="indexterm"></a>
       </span> <a hre