On Fri, Jul 8, 2016 at 10:11 PM, Arthur <tiancaia...@gmail.com> wrote: > my program allocates many different kinds of small object, and that gives GC > a lot pressure. > so I wan't to make a big slice and split object from it manually. > > block = make([]byte, 30*1024) > myObj := (*myObjType)(unsafe.Pointer(&block[offset])) > > I write a simple allocator to do it, but I meet strange panic. > so my question is, can't go alloc custom objects from byte slice's memory > address?
As you've discovered, that can't work. On a Unix system you can do this kind of thing safely using Syscall.Mmap. 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.
