On Friday 15 August 2014 22:05:44 Lisandro Damián Nicanor Pérez Meyer wrote: [snip] > > OK. So I've brought the atomic queries to the attention of Steve > > Capper, who understands this stuff. He observed that the memory > > barriers are not the right type. They'll work (as they are the 'mos > > expensive' type) but will be slower than is necessary. Hopefully he'll > > find time to have a look at that reasonably soon, but he's a busy man > > at the moment. > > To be honest this is not what I remember, IIRC they will not work. But I'll > double check the comments upstream did to the patches. [snip] > Please allow me to recheck the assertion wrt the atomic stuff. If I'm > remembering right and the atomics did pose some problems then we would have > an instant RC bug. And if this is true and arm64 becomes a release arch we > Qt maintainers have a bug we can't fix ourselves, not to mention we would > be doing a disservice to our users. > > Now if the atomics are really not such a big problem count on me with the > patching I've been told by upstream that they just don't know so I'll go ahead with the atomics patches. Let's just not forget that qt4 will be slower than necessary with this. I'll try to do my best and push the changes during saturday argentinian time. -- If little green men land in your back yard, hide any little green women you've got in the house. Mike Harding, "The Armchair Anarchist's Almanac" Lisandro Damián Nicanor Pérez Meyer http://perezmeyer.com.ar/ http://perezmeyer.blogspot.com/
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