The tracing can help identify not only what is happening but also what is not happening when your program is running. We will use a simple program to learn how to navigate and read some of the tracing information you can find in the trace tool.
Review this post to gain basic skills.
go tool trace - Will Sewell
Run the program to download a file. Use the LoadWrite() function first and then try the StreamWrite function.
Build and run the program.
$ go build
$ time ./trace > p.trace
Run run the trace tool and inspect the trace.
$ go tool trace trace.out
Generate a CPU profile.
$ go tool trace -pprof=[net,syscall,sync,sched] trace.out > cpu.out
View the profile.
$ go tool pprof cpu.out
Profiling Test (Go Playground)
All material is licensed under the Apache License Version 2.0, January 2004.