No, you cannot simply share all memory to get multi-threading. For safely/correctly working with shared memory, you need locking/synchronization primitives as well as certain guarantees in the language's memory model. JavaScript is not designed for such purposes.
On Mon, Jan 8, 2018 at 3:52 PM Bogdan <bgnor...@gmail.com> wrote: > I don't know all details, I just a regular node developer who came up with > idea of "threading" in js and hope anybody with deep knowledge will clarify > some things. Javascript have old problem of lacking threading and all > advices of using multiple processes doesn't help because there are > important tasks (for example in-memory database or managing application > cache) which needs shared memory to utilize all cpu cores and having full > copy of that memory and synchronizing it by coping data over channels > doesn't make sense. Recently I've found out an interesting linux feature > like shader memory with shm_open and mmap which can allow zero-copy and > zero-overhead access to shared memory from different processes. There are > also some node modules which exposes this feature to javascript but seems > like all they can do is exposing shared memory to javascript as an array > which means all object managing, garbage collector, and other useful > features we need to do all by ourselves. So I am wondering can v8 (if > cannot now, maybe in it will with little hacking) allow to just map all > heap into shared buffer so we can use the same objects from another process > without copying? > > -- > -- > v8-users mailing list > v8-users@googlegroups.com > http://groups.google.com/group/v8-users > --- > You received this message because you are subscribed to the Google Groups > "v8-users" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to v8-users+unsubscr...@googlegroups.com. > For more options, visit https://groups.google.com/d/optout. > -- -- v8-users mailing list v8-users@googlegroups.com http://groups.google.com/group/v8-users --- You received this message because you are subscribed to the Google Groups "v8-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to v8-users+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
