And don't forget that the last piece of the AR improvement hasn't landed yet which will also improve DG performance.
On Wed, Jul 11, 2018 at 11:14 PM, Richard Gaskin via use-livecode < use-livecode@lists.runrev.com> wrote: > Tom Glod wrote: > > > Update on this ...... I'm coming to realize that dg isn't going to > > cut it for my needs in applications where performance matters. > > Datagrid is built using custom properties. which are way way way > > slower than accessing variables i haven't tested in a while but last > > i did it was orrders of magnitude slower. > > I would be interested in seeing those tests. Vars are much faster than > fields, and still faster than custom props but much less so. > > I would imagine the bigger bottleneck is with rendering so many nested > groups of objects. > > All that said, if you know your total size will not exceed 32k px it's > easy enough to use one group populated with row groups copied in as needed. > > But if you need to go beyond 32k px you'll find the geometry becomes > unpredictable with the integer limit. For that you'd need to replicate > Trevor's hard work in virtualizing what's on screen vs what's in memory, > and handling the scrollbar via script rather than letting the engine handle > it. With all that work it may be simple to fork the existing DG if needed. > > But either is a bit of work, so I would think time spent isolating the > true bottleneck first would be time well spent. > > Please let us know what you find. > > -- > Richard Gaskin > Fourth World Systems > Software Design and Development for the Desktop, Mobile, and the Web > ____________________________________________________________________ > ambassa...@fourthworld.com http://www.FourthWorld.com > > > _______________________________________________ > use-livecode mailing list > use-livecode@lists.runrev.com > Please visit this url to subscribe, unsubscribe and manage your > subscription preferences: > http://lists.runrev.com/mailman/listinfo/use-livecode > _______________________________________________ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode
