profiling

goprof.txt

# Check on running go routines:
[parse@parse lnxjedi]$ go tool pprof http://localhost:8888/debug/pprof/goroutine
Fetching profile over HTTP from http://localhost:8888/debug/pprof/goroutine
Saved profile in /home/parse/pprof/pprof.bot.test.goroutine.008.pb.gz
File: bot.test
Type: goroutine
Time: Mar 25, 2018 at 12:13am (UTC)
Entering interactive mode (type "help" for commands, "o" for options)
(pprof) list lnxjedi
Total: 11
ROUTINE ======================== github.com/lnxjedi/gopherbot/bot.(*Robot).Say in /home/parse/go/src/github.com/lnxjedi/gopherbot/bot/robot.go
         0          1 (flat, cum)  9.09% of Total
         .          .    241:// Say just sends a message to the user or channel
         .          .    242:func (r *Robot) Say(msg string) RetVal {
         .          .    243:   if r.Channel == "" {
         .          .    244:           return robot.SendProtocolUserMessage(r.User, msg, r.Format)
         .          .    245:   }
         .          1    246:   return robot.SendProtocolChannelMessage(r.Channel, msg, r.Format)
         .          .    247:}

# Generate coverage report:
[parse@parse gopherbot]$ go test -v --tags 'test integration' -cover -race -coverprofile coverage.out -coverpkg ./... ./bot/
[parse@parse gopherbot]$ go tool cover -html=coverage.out -o coverage.html

Just a gist to help me remember how to list the goroutines for a running program with pprof enabled - I don't do this often enough to keep in working memory. ;-)