Take cloud MySQL resource quickly is normal?

[ashesofdream]

Environmental Info:
K3s Version:
1.31

Cluster Configuration:

2 server deployment with a cloud mysql from TiDB , 1 agent , 2 work pod, use ingress-nginx instead of pacifik.
Describe the bug:

CloudSql show that, mysql are executed about 15 times queries per second and take request unit ( a way to count consumption of resources
) quickly. Is that normal?

Actual behavior:

For example:

SELECT
  (
    SELECT
      max (`rkv`.`id`) AS `id`
    FROM
      `kine` AS `rkv`
  ),
  (
    SELECT
      max (`crkv`.`prev_revision`) AS `prev_revision`
    FROM
      `kine` AS `crkv`
    WHERE
      `crkv`.`name` = ?
  ),
  `kv`.`id` AS `theid`,
  `kv`.`name` AS `thename`,
  `kv`.`created`,
  `kv`.`deleted`,
  `kv`.`create_revision`,
  `kv`.`prev_revision`,
  `kv`.`lease`,
  `kv`.`value`,
  `kv`.`old_value`
FROM
  `kine` AS `kv`
WHERE
  `kv`.`name` LIKE ?
  AND `kv`.`id` > ?
ORDER BY
  `kv`.`id` ASC
LIMIT
  ?

are executed 74.9 k times in 4 hour.
in the mean while ,

INSERT INTO
  `kine` (
    `name`,
    `created`,
    `deleted`,
    `create_revision`,
    `prev_revision`,
    `lease`,
    value,
    `old_value`
  )
VALUES
  (...)

are executed 40.09k times.

Is this normal ?may be deployment a local mysql is more suitable?

Additional context / logs:

[brandond]

This is normal. The datastore is constantly accessed in order to support reads and writes from clients and the control plane.