LinuxMusicians

I can run heckbench to bring the CPU load to 90% and I don´t get any xruns, but just opening the bowser causes xruns while the CPU is shortly increasing to 80% or so. I think someone already mentioned perhaps this may be related to your video driver or video acceleration, or perhaps networking stac...

What does grep threadirqs /proc/cmdline say? I´ll take a look in the evening again. I wonder that gaphical processes can cause xruns or even opening the browser, as these processes are not running with RT priority. On the other hand I can run heckbench to bring the CPU load to 90% and I don´t get a...

A few shots in the dark here, after looking at your pastebin: - rtkit is abandoned for 5 years and running at RTprio 99, right in the danger zone. I wouldn't trust that nowadays, maybe it interferes with things that are now better done by the kernel. Did you try disabling it? - Is IRQ threading eve...

I was looking for the interface priority again , but I don't get any PID number when using pgrep: cat /proc/interrupts CPU0 CPU1 CPU2 CPU3 0: 19 0 0 0 IR-IO-APIC 2-edge timer 1: 2 0 0 0 IR-IO-APIC 1-edge i8042 8: 1 0 0 0 IR-IO-APIC 8-edge rtc0 9: 4 0 0 0 IR-IO-APIC 9-fasteoi acpi 12: 4 0 0 0 IR-IO-A...

sprock wrote:(Have you maybe answered the wrong post?)

Yes, after re-reading I see

Gern geschehen

I would go for the 22 as the 2 is only not balanced on the outputs. To connect it to your monitors you then need TRS cables.

I remember you had a good setup. Has something happened recently that has made performance worse? One thing is : why is your playback device 'loopback'? Not really. Just one thing came into my mind: The reaper project uses only the Cadmium synth. I could be that I use a different plugin version com...

I wonder(ed) why during the xruncounter test with the new script the CPU load is not evenly distributed across all 4 cores: tramp has added quite a lot. Thanks tramp! The default is a single core test. To get a multi-core test use ./xruncounter -m With the -m option the first xrun appears also at a...

I disabled the IRQbalance as explained here and I get the same (bad) result. https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux_for_real_time/7/html/tuning_guide/interrupt_and_process_binding However I observed slightly lower CPU usage in the past without IRQ balance (on the orde...

Here it's written in german that it works: https://forum.ubuntuusers.de/topic/erfahrungen-mit-low-budget-audiointerfaces/ Ich habe ein Behringer UMC22 und das funktioniert bei Ubuntu und Linux Mint out of the box. Ein Grundrauschen kann ich eigentlich nicht wahr nehmen, allerdings ist mein Shure SM5...

One of the Studio developers has recently made comments that adding KX packages will break Ubuntu Studio Controls and they do not recommend or support use of KX This is bad news for me; I've just installed Ubuntu Studio last weekend and was about to add the KX repos (and amongst other things I want...

I'm back home and currently testing again. I wonder(ed) why during the xruncounter test with the new script the CPU load is not evenly distributed across all 4 cores: http://i.imgur.com/V50zkhB.png Maybe because the audio processing is not parallelised. Further I have: @audio - rtprio 98 @audio - me...

Hi, if the dsp load goes backwards this means (as far as I know) that the cpu changes its clock (goes higher), thus the dsp load (in percent) goes down even though the load in xruncounter goes up. For xruncounter to make any sense you must ensure that your cpu runs at a fixed speed! My CPU governor...

Is the jack processing thread still running with a higher real-time priority than any reaper threads? (I guess something like "ps ax -T --format uname,pid,lwp,ppid,pri,rtprio,cmd" should help figuring this out, though it'd be good to document this on the wiki somewhere ;) ) What do you me...

if anything with RT priority is running in the backgound (e.g. reaper) it can occur much earlier. Is the jack processing thread still running with a higher real-time priority than any reaper threads? (I guess something like "ps ax -T --format uname,pid,lwp,ppid,pri,rtprio,cmd" should help...