On 07/19/2018 05:00 AM, Ralf Mardorf wrote:
What's the output of
uname -rm
4.17.8-041708-lowlatency x86_64
Back to the basic issue original poster has. Here's my situation and
something I think is related.
On my desktop, I have Debian Testing. (Debian can't be described as a
'third-party' kernel.) I have their 4.16.02-2-rt-amd64 kernel running there.
Regardless of which audio device I use (USB or built-in) simply running
JACK generates at least an xrun per second. Constantly. On the previous
kernel (4.8 something from Ubuntu Studio), I ran with latency of about
1-3 msecs without xruns.
Even boosting latency up to 64msec latency doesn't change the constant
xruns.
The box has four spinning metal hard disks in it. Disk I/O has slowed
down noticeably. Network access has slowed down a lot. Even displaying
images on screen has slowed down visibly!
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.
--
David W. Jones
gnome@xxxxxxxxxxxxx
authenticity, honesty, community
http://dancingtreefrog.com
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