18 Aug
2017
18 Aug
'17
11:54 a.m.
2017-08-18 0:36 GMT+02:00 Ralf Mardorf <ralf.mardorf(a)alice-dsl.net>et>:
Hi Ralf,
is it a 1st Gen or 2nd Gen?
2nd gen
> I've got a 18i20 2nd Gen, -n 2 -p 128
works with my outdated Athlon
> and now with my Celeron without issues. IOW even my new machine hasn't
> got much horsepower.
> If irqbalance should be enabled, disable
it.
irqbalance should be disabled?
> Did you already test
> different USB ports?
Yes I tried ... seems to be very similar on all USB ports
What's the output of
> /path/to/rtirq status
> What kernel are you using?
> uname -a
Actually I am playing with two different kernels which seems to be fine for
RT task and are available from repositories.
I don't want to spend time to build my own kernels ...
I have different output for rtirq status with kernel as one is only PREEMPT
not RT
Seems to be that rtirq need RT kernel to work fully.
Anyway I am getting same performance with both kernels.
4.12.0-8.1-liquorix-amd64 #1 ZEN SMP PREEMPT liquorix 4.12-1 (2017-08-17)
x86_64 GNU/Linux
/etc/init.d/rtirq status
PID CLS RTPRIO NI PRI %CPU STAT COMMAND
654 FF 80 - 120 0.0 S irq/18-mmc0
58 FF 50 - 90 0.0 S irq/28-mei_me
7 TS - 0 38 0.0 S ksoftirqd/0
18 TS - 0 38 0.0 S ksoftirqd/1
-------------------------------------------------------
Linux mira-laptop 4.9.33-rt23avl1 #3 SMP PREEMPT RT Sun Jul 2 21:55:59 EDT
2017 x86_64 GNU/Linux
/etc/init.d/rtirq status
PID CLS RTPRIO NI PRI %CPU STAT COMMAND
424 FF 90 - 130 0.0 S irq/31-snd_hda_
425 FF 85 - 125 6.0 S irq/19-ehci_hcd
429 FF 85 - 125 0.1 S irq/16-uhci_hcd
421 FF 84 - 124 0.0 S irq/23-ehci_hcd
431 FF 84 - 124 0.0 S irq/17-uhci_hcd
432 FF 83 - 123 0.0 S irq/18-uhci_hcd
420 FF 82 - 122 0.0 S irq/20-uhci_hcd
423 FF 81 - 121 0.0 S irq/21-uhci_hcd
66 FF 80 - 120 0.0 S irq/1-i8042
428 FF 80 - 120 0.0 S irq/22-uhci_hcd
65 FF 79 - 119 0.0 S irq/12-i8042
39 FF 50 - 90 0.0 S irq/9-acpi
57 FF 50 - 90 0.0 S irq/24-PCIe PME
58 FF 50 - 90 0.0 S irq/25-PCIe PME
59 FF 50 - 90 0.0 S irq/26-PCIe PME
60 FF 50 - 90 0.0 S irq/27-PCIe PME
61 FF 50 - 90 0.0 S irq/24-pciehp
62 FF 50 - 90 0.0 S irq/25-pciehp
63 FF 50 - 90 0.0 S irq/26-pciehp
64 FF 50 - 90 0.0 S irq/27-pciehp
67 FF 50 - 90 0.0 S irq/8-rtc0
105 FF 50 - 90 0.5 S irq/14-ata_piix
106 FF 50 - 90 0.0 S irq/15-ata_piix
408 FF 50 - 90 0.0 S irq/28-mei_me
409 FF 50 - 90 0.0 S irq/29-i915
418 FF 50 - 90 0.0 S irq/17-rtl_pci
419 FF 50 - 90 0.0 S irq/16-yenta
436 FF 50 - 90 0.0 S irq/23-i801_smb
610 FF 50 - 90 0.0 S irq/17-firewire
635 FF 50 - 90 0.0 S irq/18-mmc0
640 FF 50 - 90 0.0 S irq/18-r592
642 FF 50 - 90 0.0 S irq/18-r852
1061 FF 50 - 90 0.0 S irq/30-eth0
636 FF 49 - 89 0.0 S irq/18-s-mmc0
3 TS - 0 19 0.1 S ksoftirqd/0
22 TS - 0 19 0.1 S ksoftirqd/1
Let me know if sth could be tweaked.
best regards
mira