There has been a lot of discussions for the last few years about glvnd on the mesa-devel list and at XDC. This is not Fedora specific technology, but a change in how Mesa will work everywhere and thus there has not been a lot of discussions about it here on Fedora-devel. But that is true for most stuff, we do not discuss major new kernel features here that much either as one example. Christian ----- Original Message ----- > From: "Jan Pokorný" <jpokorny@xxxxxxxxxx> > To: devel@xxxxxxxxxxxxxxxxxxxxxxx > Sent: Monday, February 6, 2017 2:32:35 PM > Subject: Re: The glvnd + mesa update for F25 > > On 06/02/17 05:06 +0100, Kevin Kofler wrote: > > Hans de Goede wrote: > >> libglvnd is a solution for this it is a vendor neutral > >> implementation of libGL.so.1 which acts as a dispatcher > >> to one or more glvnd enabled libGL implementations > >> installed on the systems. > > > > By doing so, it decreases performance for all the users of the Mesa > > drivers by adding an unnecessary layer of indirection. I do not see > > performance being addressed at all in any of your communication, did > > you even try to measure the impact of the added indirection layer? > > These are the thoughts that crossed my mind as well, I'll admit. > > Do we have any sort of measurements or at least the related theoretical > backgrounds, such as "indirection will impose a small slowdown, but > only at the very initial phase of execution till all the necessary > symbols are resolved, no effect since then"? Is it in fact worse? > > The fact there was no serious discussion about the change is rather > unsettling, IMHO. > > -- > Jan (Poki) > > _______________________________________________ > devel mailing list -- devel@xxxxxxxxxxxxxxxxxxxxxxx > To unsubscribe send an email to devel-leave@xxxxxxxxxxxxxxxxxxxxxxx > _______________________________________________ devel mailing list -- devel@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to devel-leave@xxxxxxxxxxxxxxxxxxxxxxx
