Hi all
Cab any one confirm this?
I noticed that standard kernels found in the fedora repos were built
with CONFIG_IRQ_FORCED_THREADING=y thus the kernel parameter threadirqs
can be used on boot.
To do this I edited /etc/default/grub (with root privileges) such that:
GRUB_CMDLINE_LINUX="rhgb quiet threadirqs"
and run the following (root) command line
grub2-mkconfig --output=/boot/grub2/grub.cfg
If this is correct I guess this could be something for the next JAM spin...
Using Fernando's tip I get the following listings for version
3.17.4-301.fc21 of kernel.x86_64
bash-4.3$ rtirq status
PID CLS RTPRIO NI PRI %CPU STAT COMMAND
487 FF 70 - 110 0.0 S irq/31-snd_hda_
30 FF 50 - 90 0.0 S irq/9-acpi
51 FF 50 - 90 0.0 S irq/14-ata_piix
52 FF 50 - 90 0.0 S irq/15-ata_piix
58 FF 50 - 90 0.6 S irq/17-ata_piix
65 FF 50 - 90 0.0 S irq/22-ehci_hcd
66 FF 50 - 90 0.1 S irq/20-ehci_hcd
67 FF 50 - 90 0.0 S irq/20-uhci_hcd
68 FF 50 - 90 0.5 S irq/21-uhci_hcd
69 FF 50 - 90 0.1 S irq/20-uhci_hcd
71 FF 50 - 90 0.6 S irq/21-uhci_hcd
72 FF 50 - 90 0.0 S irq/22-uhci_hcd
73 FF 50 - 90 0.0 S irq/12-i8042
74 FF 50 - 90 0.0 S irq/1-i8042
76 FF 50 - 90 0.0 S irq/8-rtc0
252 FF 50 - 90 0.0 S irq/19-yenta
266 FF 50 - 90 0.0 S irq/19-firewire
268 FF 50 - 90 0.3 S irq/29-nouveau
469 FF 50 - 90 0.4 S irq/30-iwl3945
936 FF 50 - 90 0.0 S irq/32-enp9s0
3 TS - 0 19 0.3 S ksoftirqd/0
17 TS - 0 19 0.2 S ksoftirqd/1
bash-4.3$ ps axuw|grep irq
root 3 0.3 0.0 0 0 ? S 23:43 0:00 [ksoftirqd/0]
root 17 0.2 0.0 0 0 ? S 23:43 0:00 [ksoftirqd/1]
root 30 0.0 0.0 0 0 ? S 23:43 0:00 [irq/9-acpi]
root 51 0.0 0.0 0 0 ? S 23:43 0:00
[irq/14-ata_piix]
root 52 0.0 0.0 0 0 ? S 23:43 0:00
[irq/15-ata_piix]
root 58 0.5 0.0 0 0 ? S 23:43 0:00
[irq/17-ata_piix]
root 65 0.0 0.0 0 0 ? S 23:43 0:00
[irq/22-ehci_hcd]
root 66 0.0 0.0 0 0 ? S 23:43 0:00
[irq/20-ehci_hcd]
root 67 0.0 0.0 0 0 ? S 23:43 0:00
[irq/20-uhci_hcd]
root 68 0.9 0.0 0 0 ? S 23:43 0:01
[irq/21-uhci_hcd]
root 69 0.1 0.0 0 0 ? S 23:43 0:00
[irq/20-uhci_hcd]
root 71 1.1 0.0 0 0 ? S 23:43 0:01
[irq/21-uhci_hcd]
root 72 0.0 0.0 0 0 ? S 23:43 0:00
[irq/22-uhci_hcd]
root 73 0.0 0.0 0 0 ? S 23:43 0:00 [irq/12-i8042]
root 74 0.0 0.0 0 0 ? S 23:43 0:00 [irq/1-i8042]
root 76 0.0 0.0 0 0 ? S 23:43 0:00 [irq/8-rtc0]
root 252 0.0 0.0 0 0 ? S 23:43 0:00 [irq/19-yenta]
root 266 0.0 0.0 0 0 ? S 23:43 0:00
[irq/19-firewire]
root 268 0.3 0.0 0 0 ? S 23:43 0:00
[irq/29-nouveau]
root 469 0.4 0.0 0 0 ? S 23:44 0:00
[irq/30-iwl3945]
root 487 0.0 0.0 0 0 ? S 23:44 0:00
[irq/31-snd_hda_]
root 701 0.0 0.0 17056 2524 ? Ss 23:44 0:00
/usr/sbin/irqbalance --foreground
root 936 0.0 0.0 0 0 ? S 23:44 0:00
[irq/32-enp9s0]
simon 1672 0.0 0.0 113024 2228 pts/1 S+ 23:46 0:00 grep irq
Happy new year, Simon
--
__________________________________
Simon Lewis
Groß-Gerauer-Straße 84
55130 Mainz
Germany
Tel.: +49 6131 5864787
E-Mail:simon.lewis@slnet-online.de
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