= Profiling in Golang =

Is it time to check why your code is so slow?

Install pprof handlers automatically:

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import _ "net/http/pprof"

Run the app, and then:

❯ go tool pprof 'http://localhost:6060/debug/pprof/profile?seconds=60'
Fetching profile over HTTP from http://localhost:6060/debug/pprof/profile?seconds=60
Saved profile in /Users/bx2/pprof/pprof.main.samples.cpu.001.pb.gz
File: main
Type: cpu
Time: Mar 19, 2024 at 8:14pm (CET)
Duration: 60.08s, Total samples = 3.79s ( 6.31%)
Entering interactive mode (type "help" for commands, "o" for options)

Then:

(pprof) web

This will load and open your browser with a visualization allowing you to look reason about the generated profile.

Additionally, if you want to look at pprof information, open this url http://localhost:6060/debug/pprof/heap?debug=1 in your browser.

= References =