Does noone have an idea? :( Am Montag, 27. November 2017 13:37:43 UTC+1 schrieb basti skalendudler: > > The go tool pprof command is interactive, so I thought it is enough type > 'png' to get the image after the benchmark is run > > I tested to start go tool pprof now as well during and after the benchmark > -> nothing changes > > Am Montag, 27. November 2017 04:37:48 UTC+1 schrieb Karan Chaudhary: >> >> From the top of my head, shouldn't the benchmark be done when traffic is >> being sent to the server and not before it is sent? >> >> On Sunday, 26 November 2017 00:11:40 UTC+5:30, basti skalendudler wrote: >>> >>> Hey guiys, I posted a StackOF question two days ago, but so far nobody >>> was able to help me! >>> >>> I am trying to profile my web server I wrote, but my pprof does not >>> contain any data about the handler func. >>> I am using the httprouter package >>> <https://github.com/julienschmidt/httprouter> by julienschmidt, and >>> want to simply benchmark one of my handlers and see the pprof profile for >>> that. For the benchmarking, I am using go-wrk >>> <https://github.com/tsliwowicz/go-wrk> >>> >>> I set up my web server and pprof like this: >>> >>> >>> // Configure the server >>> server := &http.Server{ >>> Addr: ":4000", >>> Handler: router, >>> } >>> >>> >>> go func() { >>> log.Println(http.ListenAndServe(":6060", nil)) >>> }() >>> >>> >>> // Start the server >>> err = server.ListenAndServe() >>> if err != nil { >>> panic(err) >>> } >>> >>> >>> The router is initialized like this: >>> >>> >>> // Create the httprouter >>> router := httprouter.New() >>> // Register all handlers >>> router.GET("/entities/:type/map", h.UseHandler(&h. >>> ApiGetEntitiesMapRequest{}, p)) >>> >>> >>> And my handler looks like this: >>> >>> >>> func (req ApiGetEntitiesMapRequest) Handle(r *http.Request, hrp >>> httprouter.Params, p Params) (interface{}, error) { >>> test := make([]string, 0) >>> for i := 0; i < 1000; i++ { >>> test = append(test, "1") >>> test = append(test, "2") >>> // Ensure pprof has some time to collect its data >>> time.Sleep(10) >>> } >>> return test, nil >>> } >>> >>> This handler is just a test, where I dynamically append a lot of >>> elements to a slice. The reason for that is, I wanted to test whether these >>> dynamic allocations are represented in the heap profile of pprof. >>> >>> Now, what I did was: >>> >>> - Start my server >>> - execute **go tool pprof http://localhost:6060/debug/pprof/heap** in >>> my terminal >>> - then benchmark my handler by executing **go-wrk -no-c -d 5 >>> http://localhost:4000/entities/object/map** >>> >>> The request works and my benchmark also reports everything correctly. >>> However, when I type **png** in the pprof terminal, I get this graph: >>> >>> >>> <https://lh3.googleusercontent.com/-H5BlDsvkGc8/WhkpNlbAgBI/AAAAAAAABMQ/MagwiySh4F8G5NvT4V4_uTAnHexw0VqBACLcBGAs/s1600/profile001.png> >>> >>> >>> The graph does not contain any information about my handler and the >>> costly heap allocations I did in my handler. What am I doing wrong? >>> >>
-- You received this message because you are subscribed to the Google Groups "golang-nuts" group. To unsubscribe from this group and stop receiving emails from it, send an email to golang-nuts+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
