Re: FLASH: Multiplayer / multiuser appz in flash (OT: performance compared with shockwave)

[Jon Williams]

wow. that's really good. I get about the same numbers,

but I've never tested with *nearly* that many clients.

(btw, I get the same behavior...the size of the message

doesn't really change the time much...)


guessing tho', I'd say right now my biggest speedbump

is actually the server (which runs in java) and not the

client. If I run over the LAN, it screams...the client

seems to be fast enough to deal with everything.

c++ would help...


Thanks for the numbers, that's a *big* help.

I might try to do a UDP implementation (when I get

a free week) and see if I can beat shockwave...you

wouldn't want to connect to a db that way, but it'd

be great for "twitch"


thanks again

-jon


"Terry R. Schussler" wrote:


> At 9:44 PM -0400 7/17/00, Jon Williams wrote:

> >now that, ladies and gentlemen, is a man who's done

> >his homework. And he technologically dissed two solid

> >weeks of my work *sigh*

>

> Don't get me wrong - I read through your site (skimmed actually) and

> thought you're technique was quite cool!  I just want to differentiate

> between hacking your way to a solution and utilizing the tools available.

>

> >

> >hats off. he's probably right.

> >

> >Terry, can you furnish some hard statistics?

> >Like, let's say I have four users, each with an x/y value

> >that the other three players need to share, as often as possible.

> >Can you get me real-world data on how many "data-frames"

> >you can get using this technique end-to-end? i.e. how many

> >full updates for each player from flash, to flash per

> >(let's say) minute? and no on-the-LAN stuff either...

> >all the way across the net *grin*

>

> This is really hard to do because there are so many latency factors.  I

> just testing sending messages from my connection in Minneapolis (I'm

> travelling) to my server in San Francisco and the average *round-trip* for

> a message is in the 400ms range.  The amount of data I send or the

> frequency has minimal impact - perhaps increasing the roundtrip time to

> 700ms.  Making the initial connection to the server and logging in took

> about 2 seconds.

>

> We've testing using 50-200 connections but I know that other have used more.

>

> >btw, there is a non-peer-to-peer multi-user shockwave implementation.

> >i.e. one WITH a server? got thruput data on that too? pretty please?

>

> Note that in my previous email I was talking about peer-peer *on the same

> machine* - which is nearly instantaneous and certain damn faster than using

> js.  The data above is based on using a server.  A more normal peer-to-peer

> connection would probably be as fast or a little faster than using a server

> depending on the number of "peers" and the load on the peer host.

>

> The multiuser features of Shockwave are certainly fast enough for any chat

> experiences, but I wouldn't rely on that for "twitch" games.  You might

> look into the RTIME Xtra (plugin for Shockwave/DIrector) by visiting

> http://www.rtimeinc.com/ if you need more rapid messaging for games.

>

> Again, the point here is that Shockwave using embedded Flash media seems to

> be a really powerful solution for multiuser experiences.

>

> Regards,

>

> Terry

>

> --

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flasher is generously supported by...

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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 July 24-26, 2000, NEW YORK CITY, Hammerstein Ballroom

                  www.flashforward2000.com

   Produced by United Digital Artists and lynda.com

 Sponsored by Macromedia, Adobe Systems, Fusion, Inc, AtomFilms,

           shockwave.com and Electric Rain.

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 Register before June 30 and save $200!!-- www.flashforward2000.com

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