I've done some testing with the X-window suggestions at: https://gitlab.denx.de/Xenomai/xenomai/wikis/Troubleshooting#the_latency_test_shows_high_latencies
My results on an Intel PC with Xenomai 3.0.7, Linux 4.9, Debian 9.7 with xfce4, worst-case latencies: - Using Intel driver: 39.8 us - Using fbdev, 34.8 us - Setting Option "NoAccel", both with Intel and fbdev driver: 22.6 us - No GUI: 6.3 us So setting "NoAccel" helps in my case, but I'm also looking forward to further improve it. Bart On Thu, 28 Mar 2019 at 07:29, Alec Ari via Xenomai <xenomai@xenomai.org> wrote: > Firefox bumps latency up too, I wonder if the Xenomai pros have any advice > on this. Good question! It'd be nice to do video editing and 4K encoding > while doing real-time processes too. > > > Alec > >