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New The object is to avoid opening a connection every second.
We'll be supporting several thousand clients, all receiving realtime updates to their browsers at a rate of 6-40 per second.
Regards,

-scott anderson
New 40 per second? Faster than a MOVIE
>> We'll be supporting several thousand clients, all receiving realtime updates to their browsers at a rate of 6-40 per second. <<

Do you mean that the data changes up to 40 times per second, or that the users *screen* has to *change* 40 times per second?

That is faster than most *movie* refresh rates, and movies are usually buffered and not customized per user.

Hell of a requirement.

I suggest you look into missle guidence techniques or something. You are gonna need high-end stuff. I doubt off-the-shelf browsers can cut it.
________________
oop.ismad.com
New Re: 40 per second? Faster than a MOVIE
40 fields updating per second. This equates to approximately 6-12 line items updating per second. And yes, the user's screen has to change as the events occur.

Hell of a requirement, but easily satisfied with 2 days of Javascript/DOM coding, and it runs in IE 5, IE 5.5, Netscape 6, and Mozilla with no browser-specific code.

Once again, just because your tiny little realm of experience and knowledge can't conceive of a simple solution that doesn't require inventing your own Tablizer-brand[tm] way of doing things, doesn't mean that such a solution doesn't exist.
Regards,

-scott anderson
New From the mouth of.. erm.. babes.
40 fields updating per second. This equates to approximately 6-12 line items updating per second. And yes, the user's screen has to change as the events occur.

He's onto something with his movie comparison.

Shoulda just done it in Flash, and sent new screenshots as it changes. :)

muahaahahahahaha. :)

(running away now)
Addison
     Stopping the browser throbber - (admin) - (159)
         "This is the page that never ends... - (Fearless Freep) - (2)
             Prescient - (kmself) - (1)
                 Just have someone call - (imric)
         Infinite content or just infinite wait? - (tseliot) - (139)
             Wrong angle :-) - (admin) - (138)
                 Ahhhh. Circumventing another man's app by DESIGN. - (tseliot) - (137)
                     Don't control the deployment that much. - (admin) - (136)
                         Well, sure. - (tseliot) - (3)
                             One connection per session regardless. - (admin) - (2)
                                 Feh. - (pwhysall) - (1)
                                     ROFL - (admin)
                         Auto refresh? - (tablizer) - (131)
                             Re: Auto refresh? - (pwhysall) - (2)
                                 ...which should be subject to user override - (kmself) - (1)
                                     We are talking B-to-B or intranet, right? - (tablizer)
                             The application uses auto refresh now. - (admin) - (127)
                                 Why is auto-refresh not satisfactory? - (tablizer) - (125)
                                     Because I work on actual large scale applications. - (admin) - (124)
                                         depends on needed refresh rate - (tablizer) - (123)
                                             Re: depends on needed refresh rate - (admin) - (122)
                                                 Nothing is truely "instant" - (tablizer) - (121)
                                                     Re: Nothing is truely "instant" - (admin) - (95)
                                                         JavaScript but *not* client-side script? - (tablizer) - (94)
                                                             Re: JavaScript but *not* client-side script? - (admin) - (93)
                                                                 that is still client-side script/applet - (tablizer) - (92)
                                                                     Fundamental disconnect - (Yendor)
                                                                     Re: that is still client-side script/applet - (admin) - (90)
                                                                         "generic" by what scope? - (tablizer) - (89)
                                                                             Re: "generic" by what scope? - (admin) - (88)
                                                                                 security risks - (tablizer) - (87)
                                                                                     Re: security risks - (pwhysall) - (77)
                                                                                         Turing-complete == more-problems-complete - (tablizer) - (76)
                                                                                             Re: Turing-complete == more-problems-complete - (pwhysall) - (48)
                                                                                                 Using 3 protocols is just plain silly, admit it! - (tablizer) - (47)
                                                                                                     Patently false: DHTML is not the same as DOM - (admin) - (2)
                                                                                                         I did not say it was - (tablizer) - (1)
                                                                                                             JS/DOM is not the same as DHTML. - (admin)
                                                                                                     Patently false: three different protocols - (admin) - (22)
                                                                                                         How does that make any difference? Browser still deals w/ 3 -NT - (tablizer) - (21)
                                                                                                             How does that make any difference? Developer still deals w/1 -NT - (admin) - (20)
                                                                                                                 NOPE, 2 - (tablizer) - (19)
                                                                                                                     Same in SCGUI. - (admin) - (18)
                                                                                                                         odd counting - (tablizer) - (17)
                                                                                                                             Re: odd counting - yes, you do count oddly. - (admin) - (16)
                                                                                                                                 assumption missing - (tablizer) - (15)
                                                                                                                                     That's even nuttier for you - (pwhysall) - (1)
                                                                                                                                         Clarification - (pwhysall)
                                                                                                                                     Re: assumption missing - (pwhysall) - (12)
                                                                                                                                         Cytrix is NOT latency-friendly, and.... - (tablizer) - (11)
                                                                                                                                             Yes it bloody well is! - (pwhysall) - (10)
                                                                                                                                                 HTTP is important - (tablizer) - (9)
                                                                                                                                                     Bollocks - (pwhysall) - (8)
                                                                                                                                                         I saw it happen - (tablizer) - (3)
                                                                                                                                                             Get a room guys... -NT - (bepatient)
                                                                                                                                                             And that proves what? - (pwhysall)
                                                                                                                                                             One last thing - (pwhysall)
                                                                                                                                                         Actually Bryce has a point here - (ben_tilly) - (3)
                                                                                                                                                             But I'm wondering how relevant it is. - (static) - (2)
                                                                                                                                                                 It is at least halfway - (ben_tilly) - (1)
                                                                                                                                                                     Not quite irrelevent... - (addison)
                                                                                                     Patently false: HTML/DOM/JS requires full page reloads - (admin) - (4)
                                                                                                         Sorry, I misread it. - (tablizer) - (3)
                                                                                                             Once again: strawman alert - (admin) - (2)
                                                                                                                 so you say - (tablizer) - (1)
                                                                                                                     Re: so you say - (admin)
                                                                                                     Only one protocol in use - (pwhysall) - (2)
                                                                                                         wrapping is not ridding - (tablizer) - (1)
                                                                                                             Well I never - (pwhysall)
                                                                                                     Patently false: SCGUI is immune to versioning problems - (admin) - (9)
                                                                                                         dancing widgets - (tablizer) - (8)
                                                                                                             SCGUI: moving the complexity to the server. - (admin) - (7)
                                                                                                                 VB, Delphi, Powerbuilder, etc. - (tablizer) - (6)
                                                                                                                     Once again, where is the value-add? - (admin) - (5)
                                                                                                                         same arguments over and over - (tablizer) - (4)
                                                                                                                             I'll agree with that. - (admin) - (3)
                                                                                                                                 So at least you agree that they want GUI's - (tablizer) - (2)
                                                                                                                                     Re: So at least you agree that they want GUI's - (pwhysall) - (1)
                                                                                                                                         and YOU don't have to present code examples? -NT - (tablizer)
                                                                                                     Patently false: DOM/JS is too complex - (admin) - (1)
                                                                                                         "Come here! I'll bite you to death" -NT - (pwhysall)
                                                                                                     No, it's not. - (static)
                                                                                             Re: Turing-complete == more-problems-complete - (admin) - (26)
                                                                                                 The "assembler" argument again - (tablizer) - (21)
                                                                                                     And your proof is? - (admin) - (20)
                                                                                                         first choice? really really? first? - (tablizer) - (19)
                                                                                                             Er, gotcha? - (admin) - (18)
                                                                                                                 Lame first choice - (tablizer) - (17)
                                                                                                                     Sez you. - (admin) - (16)
                                                                                                                         Grid? - (tablizer) - (15)
                                                                                                                             Re: Grid? - (admin) - (14)
                                                                                                                                 more to grids than that - (tablizer) - (13)
                                                                                                                                     Re: more to grids than that - (admin) - (12)
                                                                                                                                         Frame == Grid? Egad! - (tablizer) - (11)
                                                                                                                                             What's "Half-ess"? Half an S? -NT - (pwhysall) - (10)
                                                                                                                                                 Reply re: S/2 - (tablizer) - (9)
                                                                                                                                                     Don't swear then - (pwhysall) - (8)
                                                                                                                                                         anyhow, anybdy still wanna defend frames as grid substute? -NT - (tablizer) - (7)
                                                                                                                                                             Not frames, frame. - (admin) - (6)
                                                                                                                                                                 problems with that approach - (tablizer) - (5)
                                                                                                                                                                     Nobody is defending "frames == grid" after all these weeks - (tablizer) - (4)
                                                                                                                                                                         Bryce - (pwhysall) - (3)
                                                                                                                                                                             I will bet you $100.00 - (tablizer) - (2)
                                                                                                                                                                                 I don't care - (pwhysall) - (1)
                                                                                                                                                                                     And stop it with the "listen" sh8t - (tablizer)
                                                                                                 Asynchronous xmit - (ChrisR) - (3)
                                                                                                     Re: Asynchronous xmit - (admin) - (2)
                                                                                                         Thanks... - (ChrisR) - (1)
                                                                                                             We're using it for updates... - (admin)
                                                                                     Re: security risks - (admin) - (8)
                                                                                         Skinny client, skinny needs - (tablizer) - (7)
                                                                                             Re: Skinny client, skinny needs - (pwhysall) - (6)
                                                                                                 The "assembler" argument again - (tablizer) - (5)
                                                                                                     Your "point of view" - (admin) - (4)
                                                                                                         I dn't care whthr it's new nor not. It is better than JS+DOM -NT - (tablizer) - (1)
                                                                                                             You have yet to demonstrate that. -NT - (admin)
                                                                                                         Re: Your "point of view" - (addison) - (1)
                                                                                                             "Plug-in"? Uhm, isn't that called an X Server...? -NT - (CRConrad)
                                                     I can see I'm going to have to go back to this again. - (admin) - (24)
                                                         This is *not* an OO battle.......yet - (tablizer) - (23)
                                                             I think I'd give up, Bryce. - (static)
                                                             Funny... I could have sworn you said: - (admin) - (21)
                                                                 "doable" is not the criteria I am using. - (tablizer) - (20)
                                                                     ROFL - (admin) - (19)
                                                                         not GUI. QED - (tablizer) - (18)
                                                                             Nothing like answering the question, eh? - (pwhysall) - (2)
                                                                                 and you did NOT answer my question - (tablizer) - (1)
                                                                                     Because... - (pwhysall)
                                                                             Ideal? No. Better than SCGUI? Yes. - (admin) - (14)
                                                                                 HTML + DOM + JS is a fricken mess - (tablizer) - (13)
                                                                                     A little challenge - (pwhysall) - (6)
                                                                                         user interface - (tablizer) - (5)
                                                                                             Re: user interface - (pwhysall) - (4)
                                                                                                 Because nobody wants to use that crap for GUI's - (tablizer) - (3)
                                                                                                     Re: Because nobody wants to use that crap for GUI's - (pwhysall) - (2)
                                                                                                         Forgot one. - (pwhysall)
                                                                                                         sloppy counting - (tablizer)
                                                                                     A little challenge - (pwhysall)
                                                                                     Re: HTML + DOM + JS is a fricken mess - (admin) - (4)
                                                                                         starting a new road when traffic is sufficiently high - (tablizer) - (3)
                                                                                             Re: starting a new road when traffic is sufficiently high - (admin) - (2)
                                                                                                 I have to disagree with your #2 response -NT - (tablizer) - (1)
                                                                                                     No, you don't "have to". You just do so anyway. -NT - (CRConrad)
                                 I'll have a large anchovy pizza, please. -NT - (pwhysall)
         Can you replace the frame with server-side push? -NT - (ben_tilly) - (6)
             Meaning? - (admin) - (5)
                 I thought it did but... - (ben_tilly) - (4)
                     The object is to avoid opening a connection every second. - (admin) - (3)
                         40 per second? Faster than a MOVIE - (tablizer) - (2)
                             Re: 40 per second? Faster than a MOVIE - (admin) - (1)
                                 From the mouth of.. erm.. babes. - (addison)
         Synchronized browsing? - (ChrisR) - (4)
             That might not be a bad idea... - (admin) - (2)
                 Simpler than that... - (ChrisR) - (1)
                     Gah. :-) - (admin)
             I just said that (above)!! Copycat! :D -NT - (tseliot)
         Re: Stopping the browser throbber - (dshellman) - (3)
             Re: Stopping the browser throbber - (admin) - (2)
                 Re: Stopping the browser throbber - (dshellman) - (1)
                     Re: Stopping the browser throbber (new thread) - (admin)

Seriously, for someone who shows some signs of intelligence, the consistency with which you misunderstand anything inconvenient to you is quite amazing.
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