[baseten-users] Latency of Automatic Updates?

Erik Aderstedt erik at aderstedt.se
Wed Sep 23 09:01:57 EEST 2009


> Hi,
>
> We're considering using BaseTen for an application that will be run  
> on a local LAN with 15-20 wired and wireless (802.11n) clients.
>
> One of the major attractions of BaseTen for us is the line "Database  
> changes are propagated to clients automatically, without polling"
>
> In a system running in the configuration mentioned above, what kind  
> of latency would we be looking at?  In other words, once a change is  
> made to the Postgres DB, on average, how long would it take for the  
> changes to be propagated to all connected clients?  Will it take  
> longer to allow BaseTen to propagate its changes than it would to  
> send strings via TCP?  Is there any way to prioritize the  
> propagation of changes?
>

In my experience, changes take about 1 second to propagate from a  
remote (not on the same LAN) server, and slightly less than that when  
the server is on the same LAN and connected to both wired / wireless  
clients.

/Erik
----
Erik Aderstedt
Aderstedt Software AB



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