Re: Performance

"Chris McKay" <[email protected]> Fri, 14 May 2004 15:46:36 +1200
Newsgroups gmane.comp.krysalis.jcharts.user
Message-ID <002001c43966$0fbf76f0$0300000a@Chris>
Speaking as the author of the message about performance details what
those results meant was don't run a heavily used web app on a PIII with
500Mb of memory and Oracle and iPlanet LDAP running at the same time ...

The production figures (dual Xeon, 4Gb) showed 7 charts a second being
generated. Our extranet web app (not heavily used in terms of hits per
second) has pages that display 30 pie charts at a time. You can beat the
draw speed with a scrollbar but they fill in pretty quickly.

The other thing the performance figures show is that jCharts is one of
the faster Java charting engines (versus jFreeCharts and a commercial
package)

Chris

>Interesting.  So based on that, it may not be the best choice for a 
>heavily used web app, say if you had several charts on each page, then 
>the page would take fairly long (in web terms) to load since it takes 
>over a second at best to create a chart?  Would be nice to allow the 
>actual chart drawing to be done on the client somehow, guess that might

>have to be flash.  Or can SVG do that?




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