How many sessions does the CE version support with 6 cores CPU?
That depends very much on the topology of your sessions, the resolution and framerate of the videos and any other advanced feature in use (recording…). A good approximation is the number of media streams able to be routed through the node. If you take medium quality streams (not HD), that can approximate 80/90/100 streams per CPU core in OpenVidu CE. Again, that’s an approximation and can vary a lot depending on multiple conditions.
Best regards.