Jeff, Both tomcat vm and RDS vms have 25Gbps
Postgresql Db class is db.r6g.16xlarge Tomcat vm is c5.9xlarge --Ayub On Wed, 9 Jun 2021, 17:47 Ayub Khan, <ayub...@gmail.com> wrote: > attached is the screenshot of RDS performance insights for AWS and it > shows high waiting client writes. The api performance is slow. I read that > this might be due to IOPS on RDS. However we have 80k IOPS on this test > RDS. > > Below is the query which is being load tested > > SELECT > > a.menu_item_id, > a.menu_item_name, > a.menu_item_category_id, > b.menu_item_category_desc, > c.menu_item_variant_id, > c.menu_item_variant_type_id, > c.price, > c.size_id, > c.parent_menu_item_variant_id, > d.menu_item_variant_type_desc, > e.size_desc, > f.currency_code, > a.image, > a.mark_id, > m.mark_name > > FROM .menu_item_category AS b, .menu_item_variant AS > c, > .menu_item_variant_type AS d, .item_size AS e, > .restaurant AS f, > .menu_item AS a > > LEFT OUTER JOIN .mark AS m > ON (a.mark_id = m.mark_id) > > WHERE a.menu_item_category_id = > b.menu_item_category_id AND a.menu_item_id = c.menu_item_id AND > c.menu_item_variant_type_id = > d.menu_item_variant_type_id AND d.is_hidden = 'false' AND > c.size_id = e.size_id AND a.restaurant_id = > f.restaurant_id AND f.restaurant_id = 1528 AND > (a.menu_item_category_id = NULL OR NULL IS NULL) > > AND c.menu_item_variant_id = (SELECT > min(menu_item_variant_id) > FROM > .menu_item_variant > WHERE > menu_item_id = a.menu_item_id AND deleted = 'N' > LIMIT 1) AND > a.active = 'Y' > AND (CONCAT_WS('', ',', a.hidden_branch_ids, > ',') NOT LIKE CONCAT_WS('', '%,4191,%') OR > NULL IS NULL) > AND .is_menu_item_available(a.menu_item_id, 'Y') = 'Y' > > ORDER BY a.row_order, menu_item_id; > > --Ayub >