Within the release notes for Go 1.9 it is stated:
"Library functions that used to trigger stop-the-world garbage collection 
now trigger concurrent garbage collection. Specifically, runtime.GC 
<https://tip.golang.org/pkg/runtime/#GC>, debug.SetGCPercent 
<https://tip.golang.org/pkg/runtime/debug/#SetGCPercent>, and 
debug.FreeOSMemory <https://tip.golang.org/pkg/runtime/debug/#FreeOSMemory>, 
now trigger concurrent garbage collection, blocking only the calling 
goroutine until the garbage collection is done."
Does this mean that the automatic Garbage Collector, which I am 
guessing, calls these library functions, always triggers concurrent Garbage 
collection? And that STW pauses have been eliminated from golang entirely?


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