Unit test take longer then 3 seconds in CI

[zhouqiang-cl]

Bug Report

Please answer these questions before submitting your issue. Thanks!

[2021-07-29T02:20:59.729Z] PASS: statistics_handler_test.go:88: testDumpStatsSuite.TestDumpStatsAPI	5.215s

[2021-07-29T02:20:59.729Z] PASS: http_handler_test.go:1167: HTTPHandlerTestSuite.TestAllHistory	9.935s

[2021-07-29T02:20:59.729Z] PASS: tidb_test.go:1391: tidbTestSuite.TestGracefulShutdown	4.457s

[2021-07-29T02:20:59.729Z] PASS: tidb_test.go:454: tidbTestSuite.TestSocketAndIp	4.965s

[2021-07-29T02:20:59.729Z] PASS: http_handler_test.go:1419: HTTPHandlerTestSuite.TestDebugZip	5.675s

[2021-07-29T02:20:59.729Z] PASS: tidb_test.go:320: tidbTestSuite.TestStatusAPIWithTLSCNCheck	6.781s

[2021-07-29T02:20:59.729Z] PASS: http_handler_test.go:1505: HTTPHandlerTestSuite.TestFailpointHandler	7.269s

[2021-07-29T02:20:59.729Z] PASS: http_handler_test.go:1019: HTTPHandlerTestSuite.TestGetSchema	4.044s

[2021-07-29T02:20:59.729Z] PASS: http_handler_test.go:1121: HTTPHandlerTestSuite.TestGetSchemaStorage	4.073s

[2021-07-29T02:20:59.729Z] PASS: http_handler_test.go:284: HTTPHandlerTestSuite.TestRangesAPI	9.428s

[2021-07-29T02:20:59.729Z] PASS: http_handler_test.go:1527: HTTPHandlerTestSuite.TestTestHandler	5.361s

[2021-07-29T02:20:59.729Z] PASS: http_handler_test.go:686: HTTPHandlerTestSuite.TestTiFlashReplica	4.298s

[2021-07-29T02:20:59.729Z] PASS: conn_test.go:255: ConnTestSuite.TestDispatch	7.198s

[2021-07-29T02:20:59.729Z] PASS: tidb_test.go:866: tidbTestSerialSuite.TestTLS	4.991s

1. Minimal reproduce step (Required)

in ci https://ci.pingcap.net/blue/organizations/jenkins/tidb_ghpr_check_2/detail/tidb_ghpr_check_2/21155/pipeline

2. What did you expect to see? (Required)

3. What did you see instead (Required)

4. What is your TiDB version? (Required)

[tiancaiamao]

http_handler_test.go should have been fixed in #26546
And others should be in the whitelist ...
I guess the PR is stale, let's see how it works after merge master

[bb7133]

Close this issue since all long-time tests are tracked in #25899.

[ti-srebot]

Please edit this comment or add a new comment to complete the following information

Not a bug

1. Remove the 'type/bug' label
2. Add notes to indicate why it is not a bug

Duplicate bug

1. Add the 'type/duplicate' label
2. Add the link to the original bug

Bug

Note: Make Sure that 'component', and 'severity' labels are added
Example for how to fill out the template: #20100

1. Root Cause Analysis (RCA) (optional)

2. Symptom (optional)

3. All Trigger Conditions (optional)

4. Workaround (optional)

5. Affected versions

6. Fixed versions