executor: fix error tikv_cop_wait time in metric profile

[crazycs520]

Signed-off-by: crazycs520 [email protected]

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.

[AilinKid]

LGTM

[crazycs520]

/run-all-tests

[crazycs520]

/run-sqllogic-test-1

[crazycs520]

/run-sqllogic-test-1

[wjhuang2016]

LGTM

[ti-srebot]

cherry pick to release-4.0 in PR #19881