2"><a href="runtime-config-resource.html#RUNTIME-CONFIG-RESOURCE-KERNEL">20.4.3. Kernel Resource Usage</a></span></dt><dt><span class="sect2"><a href="runtime-config-resource.html#RUNTIME-CONFIG-RESOURCE-VACUUM-COST">20.4.4. Cost-based Vacuum Delay</a></span></dt><dt><span class="sect2"><a href="runtime-config-resource.html#RUNTIME-CONFIG-RESOURCE-BACKGROUND-WRITER">20.4.5. Background Writer</a></span></dt><dt><span class="sect2"><a href="runtime-config-resource.html#RUNTIME-CONFIG-RESOURCE-ASYNC-BEHAVIOR">