I updated the github issue with some additional performance comparisons and notes.
I think there are some pretty trivial solutions for high frequency pollers, at least those using time.Sleep() > On Dec 19, 2018, at 10:03 PM, Robert Engels <reng...@ix.netcom.com> wrote: > > Then something is broken on the implementation. 10x overhead does not seem > realistic. > >> On Dec 19, 2018, at 9:50 PM, Ian Lance Taylor <i...@golang.org> wrote: >> >>> On Wed, Dec 19, 2018 at 6:52 PM robert engels <reng...@ix.netcom.com> wrote: >>> >>> I don’t think the analysis is correct in the issue cited. No one mentions >>> just using usleep() as the system call like a C program would, at least for >>> time.Sleep(), and block the calling thread. >> >> That doesn't scale to large numbers of goroutines. >> >> >>> For the timer based select, it is more difficult, and it seems the timerfd >>> is the best solution - but I would instead proposed a timer thread - that >>> manages all timers, and interacts with the scheduler as an external event - >>> that is it wakes up based on the earliest expiration timer. >> >> That's more or less how the runtime works today, although it doesn't >> use timerfd and there are up to 64 timer threads. >> >> Ian >> >> >>> On Dec 19, 2018, at 7:58 PM, djad...@gmail.com wrote: >>> >>> see https://github.com/golang/go/issues/27707 >>> >>> >>> -- >>> 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. >>> >>> >>> -- >>> 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. > > -- > 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. -- 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.
