On Tue, Nov 11, 2025 at 12:12:19PM +0100, Walter Alejandro Iglesias wrote: > Lately I reported this in ports@: > > https://marc.info/?l=openbsd-ports&m=176262090530440&w=2 > > I'm moving this here since I don't think it's a problem with blender but > with Xorg and drm (not too long ago Xorg freezed on this machine while > watching a video with mpv.) >
Apparently, on this machine and with OpenBSD, any program that stresses the CPU eventually causes X11 to become completely unresponsive. We are talking about a i3 from 2022 with 32GB RAM. Today, running this: $ stress -v --cpu 4 --io 4 --vm 2 --vm-bytes 128M I almost had to hard switch off the machine. I bought this machine recently, so I can't say if these problems were due to any changes (related to SMP support?) Curiously, on my old machine, a Core 2 Duo from 2007 with integrated graphics and just 4GB RAM, the same stress command above affects *much less* and does not freeze Xorg. I don't know if Linux uses some kind of trick to achieve it, but the truth is that the stress command does not affect the performance of X11 or the other applications *at all*, neither in the new machine nor in the old one. -- Walter
