256 run queue size is designed for the work-steal scheduler to prevent false sharing.
128 run queue size exactly fits one cache line. Since the run queue can be stolen half of the run queue from the tail by other Ps, 256 run queue size prevents false sharing when the work-steal happens on different cores. On Sunday, January 26, 2020 at 6:31:27 PM UTC+8, jin wang wrote: > > why p's local run queue size is 256, not 128 or 512? > -- 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/65c84faa-0f04-47b4-a6a0-1d2eb12557d5%40googlegroups.com.
