On Thu, Dec 22, 2016 at 9:16 AM, <d...@pendo.io> wrote: > It should be clear from the source code, but I'm using two calls to > runtime.GC() followed by runtime.ReadMemStats().
Oh, I see, sorry. My guess is that you are effectively testing the compiler's statement ordering. The compiler knows that calling Alloc does not use or affect x or y, so there is no necessary relationship between setting x and y and calling Alloc. If I change x and y to be global variables then I do see Alloc drop. https://play.golang.org/p/NQu_bQxxLY . Ian > On Thursday, December 22, 2016 at 12:06:13 PM UTC-5, Ian Lance Taylor wrote: >> >> On Thu, Dec 22, 2016 at 8:16 AM, <dr...@pendo.io> wrote: >> > >> > I was just toying around with pointers to slice elements, and I ended up >> > with this Go program: https://play.golang.org/p/D6e2SHEW1f. By the end >> > of >> > the program, all references to memory in the main function are dropped, >> > but >> > memory isn't freed after a call to runtime.GC(). This happens both in >> > the Go >> > Playground and on my local machine (though the latter is running Go >> > 1.6). >> > >> > Is it just that runtime.GC() is not triggering a full GC and a later run >> > would clear the memory? Any insight here would be appreciated, as I'm >> > really >> > curious now. Also, this isn't just a toy problem; it reflects some >> > actual >> > code I'm working on. >> >> How are you determining that "memory isn't freed"? There are several >> possible meanings for that. >> >> 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. > For more options, visit https://groups.google.com/d/optout. -- 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. For more options, visit https://groups.google.com/d/optout.
