I don't think one application/process's memory space will be made available to other applications/processes. It's fundamentally hard for processes to share their address spaces.
IIUC, with Arrow, when application A shares data with application B, the data is still duplicated in the memory spaces of A and B. It's just that data serialization/deserialization are much faster with Arrow (compared with Protobuf). On Wed, Feb 24, 2016 at 10:40 AM Corey Nolet <cjno...@gmail.com> wrote: > Forgive me if this question seems ill-informed. I just started looking at > Arrow yesterday. I looked around the github a tad. > > Are you expecting the memory space held by one application to be mutable by > that application and made available to all applications trying to read the > memory space? >