make the profile result more readable

[XuHuaiyu]

Feature Request

Is your feature request related to a problem? Please describe:
Make the profile result more readable

Describe the feature you'd like:

tidb-dashboard/pkg/apiserver/profiling/pprof.go

Lines 51 to 58 in 22ad520

	case ProfilingTypeGoroutine:
	url = "/debug/pprof/goroutine?debug=1"
	profilingRawDataType = RawDataTypeText
	fileExtenstion = "*.txt"
	case ProfilingTypeMutex:
	url = "/debug/pprof/mutex?debug=1"
	profilingRawDataType = RawDataTypeText
	fileExtenstion = "*.txt"

I suggest using /debug/pprof/goroutine?debug=2 for the Goroutine, and using /debug/pprof/mutex for the Mutex.
It'll make the profile result more readable
Describe alternatives you've considered:

Teachability, Documentation, Adoption, Migration Strategy:

[lilyjazz]

@Hawkson-jee PTAL.

[mornyx]

Changing from /goroutine?debug=1 to /goroutine?debug=2 is simple and reasonable, but changing from /mutex?debug=1 to /mutex changes the data format from readable text to binary protobuf, which will make the current front-end interaction unavailable. Could you please explain why you need to remove the debug parameter of /mutex?

[XuHuaiyu]

Actually, I do forget why I mentioned mutex here.
I test fetching mutex with and without debug, I think the behavior in dasbboard is acceptable .

[mornyx]

/assign