https://tip.golang.org/doc/go1.14
Proposal: Non-cooperative goroutine preemption
https://github.com/golang/proposal/blob/master/design/24543-non-cooperative-preemption.md
Proposal: Safe-points everywhere for non-cooperative goroutine preemption
https://github.com/golang/proposal/blob/master/design/24543/safe-points-everywhere.md
Proposal: Conservative inner-frame scanning for non-cooperative goroutine preemption
https://github.com/golang/proposal/blob/master/design/24543/conservative-inner-frame.md
Proposal: Scaling the Go page allocator
https://github.com/golang/proposal/blob/master/design/35112-scaling-the-page-allocator.md
time: excessive CPU usage when using Ticker and Sleep #27707
https://github.com/golang/go/issues/27707
panic(abort)https://github.com/golang/tools/blob/master/go/ast/astutil/rewrite.go#L43
https://github.com/golang/tools/blob/master/go/ast/astutil/rewrite.go#L444