[Info-vax] Networking Benchmarks

[osuvman50 at gmail.com]

On Friday, September 13, 2019 at 12:35:57 PM UTC-4, Bill Gunshannon wrote:
> Has anyone ever done any benchmarking of TCPIP vs. DECNET under
> VMS?  It seems that there should be less overhead and therefore
> greater throughput using DECNET.
> 
> Why am I asking this?  I have been thinking about some
> of the uses of networking in systems where there are
> backend/middleware/frontend architectures and the idea
> that DECNET actually has a valuable place in this kind
> of architecture struck me.  Now I am looking for data
> to back the idea up.  if I am right in my thinking, could
> be a real good reason to revive projects to run DECNET
> on non-VMS systems as well.
> 
> bill

I think it depends on the application, but generally TCP/IP will have higher throughput because of better buffering and consolidating ACKs (does the VMS TCP/IP stack support window scaling?). There are complications, like some anti-congestion feature of TCP that need to configured correctly.