Well, the way I'm planning this out is that at the moment, i need to have 60 chart objects with essentially up around 40 or so series per chart (estimated - could go as high as 60). Each series is an array of numbers. Each array has 60 values.
I'm still noodling out how to best put this together... I need still need to manage time in all this for labels on the charts, but the time element is going to be synced across alll of the charts, so I've been playing around with updating the labels and horizontal values manually.. (not sure if that's the way to go yet) so for example (hope this makes sense): Chart = cpu:object series = machine1:Array .... machine60:Array machine1:Array 98 100 45 67 etc.. machine2:Array 56 34 98 45 etc... --- JesterXL <[EMAIL PROTECTED]> wrote: > Sure; Flex 2 gets all of Flash 8's bitmap features > with the added benefit of > a fast as nuts AVM. As far as the data, though, not > sure. I've spent 3 > years pushing Flash to it's limits and know where > she breaks, but garbage > collection & tons of data, I haven't really found > the ceiling yet in 8.5. > What I have found is "fixed in the next build", so > it all sounds promising. > > Flash in general has problems creating millions of > objects because of the > overhead associated with the actual creation of > "Object" in Flash. There is > a lot of overhead, and while it's significant for > the hundreds, for the > thousands & hundreds of thousands, those bytes start > to add up. This is > significantly improved in 8.5. No, I don't have > details; basically, the > amount of overhead is significantly reduced; it was > a big problem in Flash > hitting the "hundreds of MovieClips" limit, and now > works great... well, as > best an alpha can be. Besides, the way it was > explained no sense... > something about byte headers, and trait objects, and > all kinds of other > low-level insanity you have to be a genious to > understand... or a Comp Sci > grad I reckon. > > Max memory? Nope; I've had Flash take up to 2 gigs > once, it was awesome! > > Again, haven't really pushed 8.5 yet since she isn't > done. > > As far as porting, yeah, I agree. We've used a > Flash 8 loaded SWF in 2 > projects to enable file-upload, and while it works > for the most part, it's > not eloquent, and not being eloquent ticks > developers off. > > Actually, 720,000 doesnt' sound to bad... what > properties do these data > points have? Like an ID and Name, or a long list or > what? > > As far as GC, hell no; if Adobe published how their > GC worked, and changed > it, we'd all be f00ked. I think Tinic's article is > the only one that has > lasted: > http://www.kaourantin.net/2005/09/garbage-collection-in-flash-player-8.html > > There was a comment on another article where he > described how using 1 member > variable vs. many locals was better... even though > locals were optimized for > local registers in Flash Player 7 making functions > faster... it's all > confusing. > > There was an in depth article that disappeared from > the face of Google; I > haven't seen it in 2 years, but don't know if it was > worth reading or not. > > Anyway, let us know about the data points; what > their properties are, I can > run some tests when I'm done with this project. > > > > ----- Original Message ----- > From: "Jonathan Hirschi" <[EMAIL PROTECTED]> > To: <flexcoders@yahoogroups.com> > Sent: Friday, January 20, 2006 5:46 PM > Subject: Re: [flexcoders] Performance question - > please help! > > > So in terms of Flex 2, would it be able to possibly > handle this amount of data effectively since it uses > flash 8? > > It sounds like you are saying that 1.5 has trouble > displaying that amount of data because of ram usage > problems? does that same problem exist in flex 2? > Is there a max on how much memory flash player 7 is > able to use effectivly? is that max much larger in > flash 8.5 player? > > It sounds to me like it might be easier to port this > thing to flex 2 than it would be to try and plug in > to > flash 8 bitmap features and draw my own graphs. > > as far as data points, well, it's 200 machines * 60 > properties * 60 minutes = 720,000 data points that > i > need to hold in memory at any given time. I'm also > being asked to update the data points at a rate of > once per minute ie 200 machines * 60 properties = > 12,000 updated data points per minute with an > eventual > goal to get those updates down to once every 10 > seconds.. > > is that something that is doable by flex 2 even? > They've got an app here written in mfc (c++) that > can > do it, but they'd like to have it accessible from > anywhere on the web... > > Have there been any performance papers published on > flash describing memory usage, etc? > > Thanks! > > --- JesterXL <[EMAIL PROTECTED]> wrote: > > > Answering from the 30,000ft view, my suggestion is > > to utilize Flex 1.5 & > > Flash 8's bitmap features. Flash Player 7, which > is > > what Flex 1.5 outputs, > > cannot handle the amount of data points you want > > with acceptable > > performance, either in code or displayed. While > > paging can be effectively > > employed, you'd probably lose the visual > > representation you are going for. > > > > Therefore, utilizing the bitmap imaging code Flash > 8 > > exposes, you could > > incoporate a component into Flex that utilizes > > blitting of those data points > > to 1 bitmap. The upshot us, it can scale > infinitely > > since it's 1 bitmap, > > and an acceptable, predicatable RAM usage. The > > downside is, you still > > wouldn't really be able to retain the data if it's > > in the 100,000 range, but > > if it's just 60 pointers to machines, that's cake. > > > > ----- Original Message ----- > > From: "Jonathan Hirschi" <[EMAIL PROTECTED]> > > To: <flexcoders@yahoogroups.com> > > Sent: Friday, January 20, 2006 4:10 PM > > Subject: [flexcoders] Performance question - > please > > help! > > > > > > > > Ok, so here's the situation, i've been tasked to > > write > > an application that shows a ton of graphs (testing > > the > > performance of flex). > > > > i need to create like 60 objects that will be > > holding > > approximately 100,000 datapoints apiece > > and i need to create those objects dynamically... > > > > is it going to be better/ more efficeient to > create > > the objects as a class? or does it matter? > > > > if i create the objects as simple objects within > the > > parent document is that going to have any effect > on > > performance? > > > > ie what i have going on is that i have to show > like > > 60 > > graphs - one per Property (like envision the > graphs > > they show on the perfmon) > > so each property would be like hits per second, > etc > > and i need to show up to 200 machines in each of > > those graphs... > > each machine represents 1 series in the graph and > > has > > 60 datapoints and i need to create the objects to > > hold > > that dynamically. > > ie each chart would be 1 object > > each chart would have x number of machines in it > > ie a structure of arrays of structures :) > > > === message truncated === __________________________________________________ Do You Yahoo!? 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