Add ENABLE_PPROF to app.ini and start pprof if true on localhost:6060

[metalmatze]

For #753 I want a simple way for people to enable pprof so they can debug with our help, or on their own, growing memory consumption or CPU usage.

For that I added ENABLE_PPROF to the app.ini.

[server]
ROOT_URL         = http://localhost:3000/
...
ENABLE_PPROF     = true

If set to true gitea will start pprof on localhost:6060 with the gitea web command.

https://blog.golang.org/profiling-go-programs
https://golang.org/pkg/net/http/pprof/

[lunny]

why not put it on the admin panel

[metalmatze]

If one enables pprof in the admin panel, would they just set this variable that I used to true, or would they simply start pprof in a goroutine with everything else continuing as before? So basically just starting another goroutine next to the webserver?!

[strk]

Should there be a PPROF_LISTEN_PORT too ?

[metalmatze]

I don't think so. Port 6060 is the standard for pprof and it should only be temporary enabled for debugging.

[lunny]

LGTM

[appleboy]

LGTM

[appleboy]

let L-G-T-M work