On 5/16/23 7:09 PM, krsg...@trixtar.org wrote:
# uname -a
Linux localhost.localdomain 6.2.10-1-default #1 SMP PREEMPT_DYNAMIC Thu Apr 6
10:36:55 UTC 2023 (ba7816e) x86_64 x86_64 x86_64 GNU/Linux
This is the first time I've seen PREEMPT_DYNAMIC. That is workable
so long as preempt is enabled in grub. To check:
$ grep -i preempt /etc/default/grub
You should either see nothing or "preempt=full" along with possibly
other options.
# grep ^CONFIG_HZ /boot/config-`uname -r`
CONFIG_HZ_250=y
CONFIG_HZ=250
So does this mean that I do have a low-latency but not real-time kernel?
Low-latency (so long as it is configured properly via grub) and a
low-resolution timer which can lead to timing problems for music.
Overall, I would characterize this as a partially real-time kernel.
Might be worth digging around in OpenSUSE to see what other kernel
packages there are. Looks like there may be no official kernel-rt
package anymore, but maybe a community package?
https://software.opensuse.org/package/kernel-rt
The issue raised is encountered in Suse-Leap.
Rosegarden ran fine before so I presume all the
configs WERE correct at one time, but usually
after a number of upgrades the segfaults begin,
there is no crash, just no takeoff even.
Ok. This is odd. Usually things become *more* stable over time. Or
at least stay the same.
Thanks for the ref, the second half is way over
my head but I'll keep it for re-reading.
Yeah, it's pretty heavy stuff. And again, it oftentimes leads to the
discovery that "not much can be done".
Ted.
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