I think the OP was implying that GC is inefficient and was inquiring about certain patterns of memory use could be freed more efficiently.
I think certain GC systems allow a region to be used to allocate objects then the region can be freed at once. Similar to the ongoing Java effort of a noop GC designed for ‘cloud functions’ where the entire process is effectively terminated between usages avoiding the need for GC (or terminated when max heap is reached and a new process started). > On Apr 16, 2019, at 11:31 PM, Ian Lance Taylor <i...@golang.org> wrote: > >> On Tue, Apr 16, 2019 at 8:46 PM <jlforr...@berkeley.edu> wrote: >> >> Go's garbage collector is very nice, and solves many problems that come up >> in C programs. >> >> However, one thing I've been wondering about is explicitly freeing memory. I >> know it can't be done >> now, and that the GC takes care of everything. >> >> But I was thinking about multi-pass programs like compilers, that do a bunch >> of work in one pass. >> Once the pass is complete then most of the memory used by the pass could be >> freed. But that >> will never happen because the memory appears to the GC as still in use. >> There are probably >> other examples of such program structure. >> >> What's the current thinking on this problem? > > I'm not clear on what the problem is. If the memory is still > referenced, then it can't be freed. If the memory can be freed, then > there shouldn't be any references to it. So, at the point where you > would explicitly free memory, just clear the pointers that point to > it. Then the GC will free the memory. > > 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.
