# Pastebin PJnCF5dM
zyga@fyke:~/snapd/interfaces/systemd$ go test -c && ./systemd.test -test.outputdir $(pwd) -test.cpuprofile=cpu.prof
OK: 7 passed
PASS
zyga@fyke:~/snapd/interfaces/systemd$ ls -ld cpu.prof 
-rw-r--r-- 1 zyga zyga 344 kwi 25 18:27 cpu.prof
zyga@fyke:~/snapd/interfaces/systemd$ go tool pprof systemd.test cpu.prof 
Entering interactive mode (type "help" for commands)
(pprof) top10
profile is empty
(pprof)