david <gnome@xxxxxxxxxxxxx> writes: > On my laptop, with Debian's 4.8.0-1-amd64 (non-RT kernel), I can run > all day with the same USB card at 10.7msec latency, without a single > xrun. No network or video slowdown. > > 4.8 doesn't have the Spectre/Meltdown patches. 4.16 does. So I blame > the Spectre/Meltdown patches. IIRC, the most likely culprit (page table isolation, making for quite more expensive context switches) can be disabled on the kernel command line at boot. This would be pti=off Of course, not to be used on a system providing non-privileged accounts to third parties. But for an audio workstation, this might be reasonable. -- David Kastrup _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx https://lists.linuxaudio.org/listinfo/linux-audio-user
