On Wed, Mar 4, 2020 at 6:44 PM Xiangdong JI <xiangdong...@arm.com> wrote: > > Given the attached screenshot of pprof output, I wonder how to figure out the > callers of 'runtime.mcall' and their cost? Thanks.
You can't, but it doesn't matter. The mcall function is used when a thread changes from executing one goroutine to a different goroutine. Knowing the code that triggers the call into mcall won't tell you anything. It's just where that goroutine happened to be preempted. 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/CAOyqgcU8dz-VpQP7y4r%3D1sho_bLuLdMtfZbckyx7uFyEueDZ_g%40mail.gmail.com.
