I let you consider an example: s := make([]*T, 100) s1, s2, s3 := s[:50], s[50:], s[:] (.... x lines of code) s1 = s1[:5]
Would you like the GC to free the elements past the last s1 slice len? What if s2, s3 are still used somewhere... On Thursday, March 26, 2020 at 7:01:34 PM UTC+1, robfig wrote: > > I see, thank you. > > RE reducing the capacity, I want to distinguish freeing the memory (1) > used for the slice and (2) referred to by the slice elements. I can easily > see that freeing (1) is hard and not so beneficial, but I can't see why (2) > would be difficult, and the benefit seems potentially much larger. In our > case, each slice element has a handle to a sizable []byte, so that's why I > was interested to know if they would remain live. > > As an aside, (1) was addressed by Ian here: > https://groups.google.com/d/msg/golang-nuts/sVhjhiYLXNg/YNZ_H-JsBAAJ > > -- 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/179c7a55-80a6-497c-9a82-5e2c6db628af%40googlegroups.com.
