Нагрузка

// list of the element fields that will be used in selection
    $arSelect = array(
     "ID",
     "NAME",
     "CODE",
     "DATE_CREATE",
     "ACTIVE_FROM",
     "CREATED_BY",
     "IBLOCK_ID",
     "IBLOCK_SECTION_ID",
     "DETAIL_PAGE_URL",
     "DETAIL_TEXT",
     "DETAIL_TEXT_TYPE",
     "DETAIL_PICTURE",
     "PREVIEW_TEXT",
     "PREVIEW_TEXT_TYPE",
     "PREVIEW_PICTURE",
 "PROPERTY_*",
    );
    $arFilter = array(
     "IBLOCK_ID" => $arParams["IBLOCK_ID"],
     "IBLOCK_LID" => SITE_ID,
     "IBLOCK_ACTIVE" => "Y",
     "ACTIVE_DATE" => "Y",
     "ACTIVE" => "Y",
     "CHECK_PERMISSIONS" => "Y",
     "INCLUDE_SUBSECTIONS" => $arParams["INCLUDE_SUBSECTIONS"],
    );
  if($arParams["BY_LINK"]!=="Y")
    {
     if($arResult["ID"])
      $arFilter["SECTION_ID"] = $arResult["ID"];
     elseif(!$arParams["SHOW_ALL_WO_SECTION"])
      $arFilter["SECTION_ID"] = 0;
    }

    //PRICES
    if(!$arParams["USE_PRICE_COUNT"])
  if(!$arParams["USE_PRICE_COUNT"])
    {
     foreach($arResult["PRICES"] as $key => $value)
     {
      $arSelect[] = $value["SELECT"];
      $arFilter["CATALOG_SHOP_QUANTITY_".$value["ID"]] = $arParams["SHOW_PRICE_COUNT"];
     }
    }

    $arSort = array(
     $arParams["ELEMENT_SORT_FIELD"] => $arParams["ELEMENT_SORT_ORDER"],
     "ID" => "DESC",
    );
    //EXECUTE
    $rsElements = CIBlockElement::GetList($arSort, array_merge($arrFilter, $arFilter), false, $arNavParams, $arSelect);