On Wed, Apr 22, 2009 at 4:39 PM, denis56 <denis.ergashb...@gmail.com> wrote:
> > His, > > I am seeing above expected performance on my application that displays > a table (17 x 17 Flextable, using only GWT widgets) of rows that > should be updated (Timer, RPC) at 1 second intervals. While the > application targets IE 6 which run somewhat slowly (updates tend to be > perfomed about 3 times slower), for sake of fairness I must attest > superior performance in Firefox 3. > > Are there common optimizations that help improve speed besides what > was recently covered in thread > > http://groups.google.com/group/Google-Web-Toolkit/browse_thread/thread/c5b8141e70a221ec/5ed79b1444d526b9?lnk=gst&q=efficiency+of+my+gwt+application#5ed79b1444d526b9 > > I have already made sure: > - to apply styles only when really needed to avoid browser redraws > - to use "table: fixed" to improve table rendering (http:// > groups.google.com/group/Google-Web-Toolkit/browse_thread/thread/ > 4e7ae69a917236a8/f3fa66ce621e9cb5?lnk=gst&q=layout%3A > +fixed#f3fa66ce621e9cb5<http://groups.google.com/group/Google-Web-Toolkit/browse_thread/thread/%0A4e7ae69a917236a8/f3fa66ce621e9cb5?lnk=gst&q=layout%3A%0A+fixed#f3fa66ce621e9cb5> > ) > - to use Timer#schedule(1000) instead of timer#scheduleRepeating(1000) > to process updates one at a time, as resources free up > > What else could one think of? > > Also, facing some memory leak issues (in IE 6) as there are a lot of > objects (Labels, Composites) being created for each row update coming > from server. It seems to be solved by reloading page every 30 minutes, > but I am wondering if there is a better way to free up browser memory > automatically and at certain intervals? > If the structure of your table doesn't change, then pre-create those labels & composites & simply change the data being displayed. Otherwise, at least for IE, innerHTML is significantly faster (although you lose the ability to do widgets & event handling gets more complicated) > > > > --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Google Web Toolkit" group. To post to this group, send email to Google-Web-Toolkit@googlegroups.com To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/Google-Web-Toolkit?hl=en -~----------~----~----~----~------~----~------~--~---
