LinuxMusicians

Posted: **Fri Dec 07, 2018 8:55 pm**

Kernel: 4.18.0-12-lowlatency

Running /etc/init.d/rtirq status shows many devices are using RT priority

$ /etc/init.d/rtirq status

  PID CLS RTPRIO  NI PRI %CPU STAT COMMAND	
  583 FF      90   - 130  0.0 S    irq/132-snd_hda	
  110 FF      85   - 125  0.0 S    irq/122-xhci_hc	
   50 FF      50   -  90  0.0 S    irq/9-acpi	
  107 FF      50   -  90  0.0 S    irq/121-aerdrv	
  108 FF      50   -  90  0.0 S    irq/121-pcie-dp	
  111 FF      50   -  90  0.0 S    irq/8-rtc0	
  192 FF      50   -  90  0.0 S    irq/16-i801_smb	
  195 FF      50   -  90  0.0 S    irq/123-ahci[00	
  217 FF      50   -  90  0.0 S    irq/124-nvme0q0	
  218 FF      50   -  90  0.0 S    irq/126-nvme0q1	
  219 FF      50   -  90  0.0 S    irq/127-nvme0q2	
  220 FF      50   -  90  0.0 S    irq/128-nvme0q3	
  221 FF      50   -  90  0.0 S    irq/129-nvme0q4	
  409 FF      50   -  90  0.0 S    irq/5-parport0	
  417 FF      50   -  90  0.0 S    irq/130-mei_me	
  585 FF      50   -  90  0.0 S    irq/17-snd_hda_	
  892 FF      50   -  90  0.0 S    irq/125-eno1	
  894 FF      50   -  90  0.0 S    irq/131-nvkm	
    9 TS       -   0  19  0.1 S    ksoftirqd/0	
   19 TS       -   0  19  0.1 S    ksoftirqd/1	
   25 TS       -   0  19  0.1 R    ksoftirqd/2	
   31 TS       -   0  19  0.1 R    ksoftirqd/3

I'm wondering if I want anything other than my sound card using RT threads at all?

Posted: **Fri Dec 07, 2018 9:59 pm**

Same for me. If you use the rtirq script from Rui (comes with KXStudio) the RT priorities are set automatically after rebooting ASFAIK.

Code: Select all

  PID CLS RTPRIO  NI PRI %CPU STAT COMMAND	
  311 FF      90   - 130  0.0 S    irq/31-snd_hda_	
  325 FF      90   - 130  0.0 S    irq/33-snd_hda_	
  132 FF      85   - 125  0.0 S    irq/16-ehci_hcd	
  150 FF      85   - 125  1.9 S    irq/27-xhci_hcd	
  151 FF      84   - 124  0.0 S    irq/29-xhci_hcd	
  169 FF      84   - 124  0.0 S    irq/23-ehci_hcd	
   77 FF      80   - 120  0.0 S    irq/1-i8042	
   76 FF      79   - 119  0.0 S    irq/12-i8042	
   58 FF      50   -  90  0.0 S    irq/9-acpi	
   78 FF      50   -  90  0.0 S    irq/8-rtc0	
  121 FF      50   -  90  0.0 S    irq/18-i801_smb	
  152 FF      50   -  90  0.0 S    irq/28-ahci[000	
  308 FF      50   -  90  0.0 S    irq/30-mei_me	
  312 FF      50   -  90  0.1 S    irq/32-i915	
  754 FF      50   -  90  0.0 S    irq/26-enp2s0	
    3 TS       -   0  19  0.0 S    ksoftirqd/0	
   22 TS       -   0  19  0.0 S    ksoftirqd/1	
   31 TS       -   0  19  0.0 S    ksoftirqd/2	
   40 TS       -   0  19  0.0 S    ksoftirqd/3

LinuxMusicians

A question about rtirq

A question about rtirq

Re: A question about rtirq