Harald JOHNSEN wrote: > Vivian Meazza wrote: > > >> Harald >> >> >> >> >>> Sent: 13 May 2007 18:19 >>> To: FlightGear developers discussions >>> Subject: Re: [Flightgear-devel] More ideas on dogfighting >>> >>> >>> Ampere K. Hardraade wrote: >>> >>> >>> >>> >>>> >>>> >>>> >>> If the server does the fdm 100 times per second and send the data 10 >>> times per second it's like if the client was running the fdm >>> at 10 hz. >>> That's why I said it's not needed to run the fdm at more than 10 hz >>> (those numbers are just examples). >>> >>> >>> >>> >>>> Since the FDM takes so little CPU power, the amount clients >>>> >>>> >>>> >>> that can be >>> >>> >>> >>>> served >>>> should be dependent on the bandwidth. >>>> >>>> >>>> >>>> >> I suppose that we run the fdm at 120Hz for a good reason: why could we >> suddenly accept 10Hz? >> >> Vivian >> >> >> >> > That was in the situation where the MP server does the fdm computation > for the client. The 10 hz comes from a ping of 100 ms between the client > and the server. > > Harald. > > Don't forget that since the current and proposed systems use UDP as the packet protocol which has no acknowledge packet. Theoretically the server could push out FDM calculated info at 120 Hz with a 50 ms lag (1/2 the roundtrip ping). Just a thought.
BTW, I'm the jwagner James referred to in an earlier post. Jonathan Wagner ------------------------------------------------------------------------- This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/ _______________________________________________ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
