Sebastian Werner wrote: > Andreas Junghans schrieb: >> Am 01.08.2006 um 20:08 schrieb Erik A. Onnen: >> >>> Admittedly I'm ignorant as to the internals of the IE garbage >>> collector, but shouldn't simply nulling out the qx.core.Object._db be >>> sufficient for escape analysis (i.e. if this is the only point of >>> reachability for these objects, removing it should preclude any it's >>> contents from being marked as reachable)? >> Sorry, I didn't read your statement carefully enough before my first >> reply. The problem is that somewhere inside the object DB, there may >> be a JavaScript object that has a reference to a DOM object (which >> again might have references to JavaScript objects). This cycle isn't >> broken by just getting rid of the main DB reference. So the answer to >> your question is: Nulling out is sufficient (i.e. you don't need to >> use the "delete" operator), but you have to null out everything >> recursively! >> >> Oh, and I think I missed a crucial point why your IE delete time is >> so high. It's probably not because of the garbage collector, but >> because the array gets reorganized on every delete (since an index is >> actually removed from it as opposed to simply assigning a new value). >> Looks like Firefox is way more efficient here ... > > the delete doesn't shorten the array in my opinion.
The value of the length property is the same after the deletes although I guess there's no way to tell what IE does with the underlying storage. > > Sebastian > >> Regards, >> >> Andreas >> >> >> ------------------------------------------------------------------------- >> Take Surveys. Earn Cash. Influence the Future of IT >> Join SourceForge.net's Techsay panel and you'll get the chance to share your >> opinions on IT & business topics through brief surveys -- and earn cash >> http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV >> _______________________________________________ >> qooxdoo-devel mailing list >> [email protected] >> https://lists.sourceforge.net/lists/listinfo/qooxdoo-devel > > > ------------------------------------------------------------------------- > Take Surveys. Earn Cash. Influence the Future of IT > Join SourceForge.net's Techsay panel and you'll get the chance to share your > opinions on IT & business topics through brief surveys -- and earn cash > http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV > _______________________________________________ > qooxdoo-devel mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/qooxdoo-devel > ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys -- and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ qooxdoo-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/qooxdoo-devel
