Thanks. Now i'm able to get things working. However i'm not getting proper "threadcreate" dump and block dump. I'm taking it by using "http://127.0.0.1:6060/debug/pprof/threadcreate" --> which saying below. I have totally 23 threads and wants to see the reason, why they have been created. Type: threadcreate Time: Nov 15, 2019 at 5:43pm (IST) Entering interactive mode (type "help" for commands, "o" for options) (pprof) top Showing nodes accounting for 1, 4.76% of 21 total flat flat% sum% cum cum% 1 4.76% 4.76% 1 4.76% runtime.allocm 0 0% 4.76% 1 4.76% runtime.main 0 0% 4.76% 1 4.76% runtime.newm 0 0% 4.76% 1 4.76% runtime.startTemplateThread
Also, block dump show below. Any link on how to interprete it? Type: delay Time: Nov 15, 2019 at 5:37pm (IST) Entering interactive mode (type "help" for commands, "o" for options) (pprof) top Showing nodes accounting for 456.51ms, 100% of 456.63ms total Dropped 82 nodes (cum <= 2.28ms) flat flat% sum% cum cum% 456.51ms 100% 100% 456.51ms 100% runtime.selectgo 0 0% 100% 450.77ms 98.72% google.golang.org/grpc/internal/transport.(*controlBuffer).get 0 0% 100% 450.77ms 98.72% google.golang.org/grpc/internal/transport.(*loopyWriter).run 0 0% 100% 450.77ms 98.72% google.golang.org/grpc/internal/transport.newHTTP2Client.func3 Thanks, BLN On Friday, 15 November 2019 11:20:59 UTC+5:30, robert engels wrote: > > I think an easier way is to enable the http based profiling, then just > request the profile using the web interface using N seconds - much easier. > You can make enabling the http profiling a compile time option. > > On Nov 14, 2019, at 10:41 PM, Michael Jones <michae...@gmail.com > <javascript:>> wrote: > > If your program is endless, then you'll need to have a timer that says > "it's been long enough, write the profile now" > > On Thu, Nov 14, 2019 at 9:35 AM bln prasad <pras...@gmail.com > <javascript:>> wrote: > >> My applications main starts few go routines and runs indefinitely. its >> like pprof.StopCPUProfile() may never get called. >> >> Thanks, >> BLN >> >> On Wednesday, 13 November 2019 23:30:47 UTC+5:30, Ian Lance Taylor wrote: >>> >>> On Wed, Nov 13, 2019 at 9:37 AM bln prasad <pras...@gmail.com> wrote: >>> > >>> > I'm running go application as systemd service. I've enabled cpu >>> profile using pprof as specified in documents. When service ran, it's >>> creating file but no samples are getting written to file. >>> > Does it required any special build arguments? >>> > >>> > f, err := os.Create("/tmp/cpu.prof") >>> > if err != nil { >>> > log.Fatal("could not create CPU profile: ", err) >>> > } >>> > defer f.Close() >>> > >>> > if err := pprof.StartCPUProfile(f); err != nil { >>> > log.Fatal("could not start CPU profile: ", err) >>> > } >>> > defer pprof.StopCPUProfile() >>> >>> It's impossible to tell without seeing more of your program. The >>> program has to actually do something between the calls to >>> StartCPUProfile and StopCPUProfile. In particular, samples are taken >>> by default every 10 milliseconds, so if your program runs for a much >>> shorter amount of time then it would be normal to not see any samples. >>> >>> Ian >>> >> >> -- >> 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 golan...@googlegroups.com <javascript:>. >> To view this discussion on the web visit >> https://groups.google.com/d/msgid/golang-nuts/44a1f5ef-f289-499c-b35c-c56c5f1bf936%40googlegroups.com >> >> <https://groups.google.com/d/msgid/golang-nuts/44a1f5ef-f289-499c-b35c-c56c5f1bf936%40googlegroups.com?utm_medium=email&utm_source=footer> >> . >> > > > -- > > *Michael T. jonesmichae...@gmail.com <javascript:>* > > -- > 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 golan...@googlegroups.com <javascript:>. > To view this discussion on the web visit > https://groups.google.com/d/msgid/golang-nuts/CALoEmQyz%3Dcc-EejPyx-ZCWfKN_hFD%2BGZiKwZkRjFEjr-WPZCeA%40mail.gmail.com > > <https://groups.google.com/d/msgid/golang-nuts/CALoEmQyz%3Dcc-EejPyx-ZCWfKN_hFD%2BGZiKwZkRjFEjr-WPZCeA%40mail.gmail.com?utm_medium=email&utm_source=footer> > . > > > -- 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. To view this discussion on the web visit https://groups.google.com/d/msgid/golang-nuts/304c77f8-7b1e-49ec-9c97-7644acc2941d%40googlegroups.com.