executor: fix error tikv_cop_wait time in metric profile (#19859)

[ti-srebot]

cherry-pick #19859 to release-4.0

---

Signed-off-by: crazycs520 crazycs520@gmail.com

What problem does this PR solve?

tikv_cop_wait metric has a type label, it has 3 values: all, schedule,snapshot. And the all total_time = schedule total time + snapshot total time.

METRICS_SCHEMA> select type,sum(value) from tikv_cop_wait_total_time group by type;
+----------+---------------------+
| type     | sum(value)          |
+----------+---------------------+
| all      | 6704.248505983651   |
| schedule | 6628.518727877801   |
| snapshot |   75.85378299487088 |
+----------+---------------------+

What is changed and how it works?

When collecting the total time of tikv_cop_wait, should ignore the all type value.

Related changes

• Need to cherry-pick to the release branch

Check List

Tests

• Manual test

Before

This PR

Side effects

• Performance regression
  • Consumes more CPU

Release note

• Fix issue of tikv_cop_wait time in metric profile.

[ti-srebot]

/run-all-tests

[crazycs520]

/run-all-tests

[AilinKid]

LGTM

[tangenta]

LGTM

[crazycs520]

/run-integration-copr-test

[wjhuang2016]

LGTM

[crazycs520]

/run-all-tests

[ti-srebot]

@bb7133,Thanks for your review. The bot only counts LGTMs from Reviewers and higher roles, but you're still welcome to leave your comments.See the corresponding SIG page for more information. Related SIG: execution(slack).