Conference decwet::nt-developers

3214.0. "MS/RPC vs. MS/LRPC performance?" by GUIDUK::BARTLETT () Wed Mar 26 1997 16:16

    
    
    I'm working on an application that uses MS/RPC for interprocess
    communication between a handful (4) NT service modules.  I have a
    question about performance differences between RPC calls between
    client and server running on the same system and client and server
    running on separate systems.
    
    From limited experience with DCE/RPC on unix systems, I know that
    early versions of OSF/DCE had a problem with RPC calls (bindings
    particularly) taking longer when communicating with a server on
    the same system as the client than the same calls would take over
    a network interface.
    
    My question is whether MS/RPC is intelligent enough to keep data
    transfers above the transport layer if the client communicates
    with the server on the same system.  I think that recent versions
    of OSF/DCE do this and long as you don't specify the full network
    path on the binding request.
    
    This kind of information is helpful since, otherwise I'd have to
    do some testing to determine whether there are major performance
    differences between local RPC and remote RPC.  If there is a
    substantial difference, I'll probably end up writing conditional
    code to check for local or remote access and use LRPC for local
    and RPC for remote communications.
    
    Thanks,
    Roger Bartlett.