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)