Same here :) Where can I find the url interceptor implementation you are using?
Simon Original Message From: Aleix Pol Sent: Friday, May 8, 2015 19:17 To: Marco Martin Cc: plasma-devel@kde.org; Hausmann Simon Subject: Re: Good news regarding Qt 5.5 On Fri, May 8, 2015 at 6:55 PM, Marco Martin <notm...@gmail.com> wrote: > On Friday 08 May 2015 12:49:45 Simon Hausmann wrote: >> During the investigation - we also talked about this on IRC - I noticed >> that plasma creates a lot of QQmlEngine instances - it seems one per >> applet. In the light of each instance coming with its own garbage >> collection heap and its own QML type loader thread, this seems rather >> heavy. I think that if you can change Plasma to share one QQmlEngine for >> everything and isolate your objects in different QQmlContext instances >> instead, then you should be able to save _a lot_ of memory and also get >> much better performance. I'm mentioning performance because this very bug > > I gave a try at sharing an engine at least for the desktop/panel widgets: > I've managed to make something load, for instance loading the systemtray > widget in plasmoidviewer seems to work and to be functional .. at the highly > unscientific memory consumption estimate of top, it says memory usage is > exactly half :O > so, if this is a figure that will have some foundation in reality, this is a > road *definitely* to be taken > > But now i've hit a blocker that i'm not sure makes it possible to change it in > a compatible way: > It relies on QQmlAbstractUrlInterceptor to change some accessed paths in a way > that's specific of every different plasma widget. > so with an engine per applet it was easy: every engine had its own > QQmlAbstractUrlInterceptor instance.. now that there would be a single global > interceptor instance, i can't know from within the interceptor what is the > applet that is trying to access a file (or even from what QQmlContext that > access was done) > > probably could have known that using QQmlAbstractUrlInterceptor was asking for > troubles, but... any idea? :) > > -- > Marco Martin I have no idea. Can you push it into a branch? I'd be interested in looking into this. Aleix _______________________________________________ Plasma-devel mailing list Plasma-devel@kde.org https://mail.kde.org/mailman/listinfo/plasma-devel
