Also, based on the number of Go routine 4k, and the Go routine ID - you may be cycling through threads really rapidly, if the Go routines are using blocking calls that are spawning new threads - as these spin up you will increase the scheduler wait time.
> On Jul 28, 2019, at 4:42 PM, robert engels <reng...@ix.netcom.com> wrote: > > goanalyzer <https://github.com/robaho/goanalyzer> might help you understand > what is happening better. The schedule wait time looks high, but this time is > dependent on the number of active (usually CPU bound) Go routines vs. > GOMAXPROCS (which is usually limited by number of CPUs). > > > >> On Jul 27, 2019, at 11:47 PM, zct <90sworking...@gmail.com >> <mailto:90sworking...@gmail.com>> wrote: >> >> The version of go i am use is 1.12 >> My server run in a docker which deploy in production environment which >> contains many machine . It is strange that the server occasionally behave >> like hang up in particular machine. so i use trace tool to analyze the >> performance， i get this : >> >> <wx20190728-124...@2x.png> >> >> >> >> >> >> scheduler wait is longer than excepted, the sync wait maybe caused by the >> scheduler time. I want to which scopes can lead to the longer scheduler >> wait? OS scope ? Docker scope? code scope? >> >> >> -- >> 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/8d62ecdd-aed2-485e-b382-067b9078b44a%40googlegroups.com >> >> <https://groups.google.com/d/msgid/golang-nuts/8d62ecdd-aed2-485e-b382-067b9078b44a%40googlegroups.com?utm_medium=email&utm_source=footer>. >> <wx20190728-124...@2x.png> > -- 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/705E8EB5-144E-4B83-AC0B-FB84FE37BFFB%40ix.netcom.com.
