trace command

Trace is a tool for viewing trace files.

Trace files can be generated with:

• runtime/trace.Start
• net/http/pprof package
• go test -trace

Example usage: Generate a trace file with 'go test':

go test -trace trace.out pkg

View the trace in a web browser:

go tool trace trace.out

Generate a pprof-like profile from the trace:

go tool trace -pprof=TYPE trace.out > TYPE.pprof

Supported profile types are:

• net: network blocking profile
• sync: synchronization blocking profile
• syscall: syscall blocking profile
• sched: scheduler latency profile