On Tue, Apr 27, 2021, 8:55 AM Manlio Perillo <manlio.peri...@gmail.com> wrote:
> Il giorno martedì 27 aprile 2021 alle 17:51:46 UTC+2 Ian Lance Taylor ha > scritto: > >> On Tue, Apr 27, 2021 at 7:43 AM Manlio Perillo <manlio....@gmail.com> >> wrote: >> > >> > Il giorno lunedì 26 aprile 2021 alle 10:24:09 UTC+2 Pure White ha >> scritto: >> >> >> >> So I really want to know what is the right way to do vdso call outside >> runtime? >> >> >> > What about using a different function instead of time.Now, and using >> RawSyscall? >> >> That wouldn't be a VDSO call. VDSO calls are in general faster than >> system calls. There is more background at >> https://man7.org/linux/man-pages/man7/vdso.7.html. > > Ian > > > Yes, that wouldn't a VDSO call. But since a VDSO call will require cgo , > maybe RawSyscall will be more efficient? > The meaningful comparison is to time.Now, which uses VDSO. I suppose it is possible that RawSyscall of clock_gettime with a coarse clock would be faster than time.Now, but I would be surprised. 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. To view this discussion on the web visit https://groups.google.com/d/msgid/golang-nuts/CAOyqgcX9mfSFq5gucrTCi0PJyVdLzA2xGXNByDeOGOyaFLo1hA%40mail.gmail.com.
