unstable test: trackerrecorder_test.go:63: trackRecorderSuite.TestHeapProfileRecorder

[tisonkun]

Bug Report

[2021-07-10T06:13:50.563Z] ----------------------------------------------------------------------
[2021-07-10T06:13:50.563Z] FAIL: trackerrecorder_test.go:63: trackRecorderSuite.TestHeapProfileRecorder
[2021-07-10T06:13:50.563Z] 
[2021-07-10T06:13:50.564Z] trackerrecorder_test.go:87:
[2021-07-10T06:13:50.564Z]     // ensure that the consumed bytes is at least larger than num * size of value
[2021-07-10T06:13:50.564Z]     c.Assert(int64(valueSize*num), LessEqual, bytes)
[2021-07-10T06:13:50.564Z] ... compare_one int64 = 960000
[2021-07-10T06:13:50.564Z] ... compare_two int64 = 524304

1. Minimal reproduce step (Required)

https://ci.pingcap.net/blue/organizations/jenkins/tidb_ghpr_check_2/detail/tidb_ghpr_check_2/15977/pipeline

[ti-srebot]

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