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 <michael.jo...@gmail.com> 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 <prasad....@gmail.com > <mailto:prasad....@gmail.com>> 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 golang-nuts+unsubscr...@googlegroups.com > <mailto:golang-nuts+unsubscr...@googlegroups.com>. > 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. Jones > michael.jo...@gmail.com <mailto:michael.jo...@gmail.com> > > -- > 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 > <mailto:golang-nuts+unsubscr...@googlegroups.com>. > 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/6F26DD8F-DE79-4EB5-8444-22A66D6FBED4%40ix.netcom.com.
