Hi Flj, Today [email protected] wrote:
> Hi. > > I have to agree with Stefan. It may seem like micro-optimizations > should be the job of the Javascript engine, not that of the app > code/programmer, but isn't. Thing is, such micro-optimizations > like the ones described by Stefan are in most cases related to > programmer intent, not just to implementation, and no Javascript > engine can discover what a programmer was thinking (or not :D) > when writing a loop or creating a data structure. > > One more reason why the framework code should be optimized: > qooxdoo, while being an excellent framework, is essentially used > to create user interface. You can't really efficiently perform > operations affecting half the databse using qooxdoo - you don't > want to transfer that much of the database to the client. As > such, most time spent by a qooxdoo application is in framework > code. So the framework's efficiency is what determines overall > speed. As such, speeding up the framework pays off, in that it > speeds up most other applications significantly. > > Not that I don't understand the time and resources constraints > placed upon the qooxdoo team (which I expect to get worse as html > 5 takes off and receives massive browser support). Have you tried the loop optimization with a loop that actually does something ? At least in our tests, we found that only very little is to be gained once there is some realistic 'payload' inside the loop. If there are realy light, tight loops in the framework, then it makes sense to optimize them, but I bet there are very few of these ... If you are keen on helping improve framework performance, take a profiler to your real world application and hunt for framework hot-spots via this route. hth tobi -- Tobi Oetiker, OETIKER+PARTNER AG, Aarweg 15 CH-4600 Olten, Switzerland http://it.oetiker.ch [email protected] ++41 62 775 9902 / sb: -9900 ------------------------------------------------------------------------------ Start uncovering the many advantages of virtual appliances and start using them to simplify application deployment and accelerate your shift to cloud computing. http://p.sf.net/sfu/novell-sfdev2dev _______________________________________________ qooxdoo-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/qooxdoo-devel
