Thank you for the clarification. i will check again source code. Thank you!
2022년 11월 26일 (토) 오전 2:07, Ian Lance Taylor <i...@golang.org>님이 작성: > On Fri, Nov 25, 2022 at 8:35 AM UK <sun852...@gmail.com> wrote: > > > > channel and mutex eventually call futexsleep(in runtime source) when > need to block > > > > but when I tested sync.Mutex lock 10000 times, there is only 8 threads.. > > > > futex is os level operation(syscall), then futex sleep os-level > thread(not goroutine) > > > > right? somebody help me understand... > > It's not accurate to say that channel and mutex operations always call > futexsleep. Those operations will park the goroutine until it is > ready and the thread will enter the scheduler to find another > goroutine to run. futexsleep is used by a thread when there is no > goroutine available to schedule. > > 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/CADR3yz3UPx57-zSqoTuZ9gLNA_b6SjYOPKYQ3ggFGdScuGU%3Dwg%40mail.gmail.com.
