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I have a problem with an app that is slowed down significantly when an openFrameworks based app is launched. Both apps use little cpu and memory, so i don't think there's a bottleneck.
I can reproduce the problem by running
openssl speed
alone compared to
openssl speed
in one console and
glmark2 -b jellyfish
in another.
So openGL rendering somehow affects the CPU performance and it is not clear to me why.
Can someone explain ?
(System is Ubuntu 14.04 i7 with intel HD3000, however a system with an Nvdia card showed the same effect)
It sounds like the device drivers your using do not fully support
OpenGL (ES) 2.0
– Ramhound – 2014-07-24T11:14:28.287I installed the driver from https://01.org/linuxgraphics/downloads/2014/intelr-graphics-installer-1.0.5-linux which is the best I can get I guess. Any way to test if it supports OpenGL 2.0 ?
– joekr – 2014-07-24T16:58:05.627