Lunny Xiao d782cad7f8 Add start time on perf trace because it seems some steps haven't been recorded. (#35282) ...

The new trace log looks like
```
http start=2025-08-14 15:03:04 duration=0.6978s http.route=/
  http.func start=2025-08-14 15:03:04 duration=0.6978s func=common.ForwardedHeadersHandler.ForwardedHeaders
    http.func start=2025-08-14 15:03:04 duration=0.6978s func=routing.(*requestRecordsManager).handler-fm
      http.func start=2025-08-14 15:03:04 duration=0.6978s func=gzhttp.NewWrapper
        http.func start=2025-08-14 15:03:04 duration=0.6975s func=session.Sessioner
          http.func start=2025-08-14 15:03:04 duration=0.6973s func=context.Contexter
```

2025-08-18 15:17:19 +00:00

..

event.go

Support performance trace (#32973)

2025-01-21 18:57:07 +00:00

gtprof.go

Refactor pprof labels and process desc (#32909)

2024-12-20 12:17:14 +08:00

trace_builtin.go

Add start time on perf trace because it seems some steps haven't been recorded. (#35282)

2025-08-18 15:17:19 +00:00

trace_const.go

Support performance trace (#32973)

2025-01-21 18:57:07 +00:00

trace_test.go

Use test context in tests and new loop system in benchmarks (#33648)

2025-02-20 09:57:40 +00:00

trace.go

Support performance trace (#32973)

2025-01-21 18:57:07 +00:00