<div dir="ltr"><br><div class="gmail_extra"><br><div class="gmail_quote">2017-08-18 0:36 GMT+02:00 Ralf Mardorf <span dir="ltr"><<a href="mailto:ralf.mardorf@alice-dsl.net" target="_blank">ralf.mardorf@alice-dsl.net</a>></span>:<br><br></div><div class="gmail_quote">Hi Ralf,<br></div><div class="gmail_quote"><br><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
is it a 1st Gen or 2nd Gen?<br></blockquote><div><br></div><div>2nd gen<br></div><div>Â </div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<br>
I've got a 18i20 2nd Gen, -n 2 -p 128 works with my outdated Athlon<br>
and now with my Celeron without issues. IOW even my new machine hasn't<br>
got much horsepower.<br>
<br>
If irqbalance should be enabled, disable it.</blockquote><div><br></div><div>irqbalance should be disabled?<br></div><div><br>Â </div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"> Did you already test<br>
different USB ports?<br></blockquote><div><br></div><div>Yes I tried ... seems to be very similar on all USB ports <br></div><div><br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
What's the output of<br>
<br>
 /path/to/rtirq status<br>
<br>
What kernel are you using?<br>
<br>
uname -a<br></blockquote><div><br></div><div>Actually I am playing with two different kernels which seems to be fine for RT task and are available from repositories.<br></div><div>I don't want to spend time to build my own kernels ...<br></div><div>I have different output for rtirq status with kernel as one is only PREEMPT not RT<br></div><div>Seems to be that rtirq need RT kernel to work fully.<br><br></div><div>Anyway I am getting same performance with both kernels.<br></div><div><br>4.12.0-8.1-liquorix-amd64 #1 ZEN SMP PREEMPT liquorix 4.12-1 (2017-08-17) x86_64 GNU/Linux<br><br> /etc/init.d/rtirq status<br><br> PID CLS RTPRIO NI PRI %CPU STAT COMMAND   <br> 654 FF     80  - 120 0.0 S   irq/18-mmc0   <br>  58 FF     50  - 90 0.0 S   irq/28-mei_me   <br>   7 TS      -  0 38 0.0 S   ksoftirqd/0   <br>  18 TS      -  0 38 0.0 S   ksoftirqd/1   <br><br>-------------------------------------------------------<br><br>Linux mira-laptop 4.9.33-rt23avl1 #3 SMP PREEMPT RT Sun Jul 2 21:55:59 EDT 2017 x86_64 GNU/Linux<br><br>/etc/init.d/rtirq status<br><br> PID CLS RTPRIO NI PRI %CPU STAT COMMAND   <br> 424 FF     90  - 130 0.0 S   irq/31-snd_hda_   <br> 425 FF     85  - 125 6.0 S   irq/19-ehci_hcd   <br> 429 FF     85  - 125 0.1 S   irq/16-uhci_hcd   <br> 421 FF     84  - 124 0.0 S   irq/23-ehci_hcd   <br> 431 FF     84  - 124 0.0 S   irq/17-uhci_hcd   <br> 432 FF     83  - 123 0.0 S   irq/18-uhci_hcd   <br> 420 FF     82  - 122 0.0 S   irq/20-uhci_hcd   <br> 423 FF     81  - 121 0.0 S   irq/21-uhci_hcd   <br>  66 FF     80  - 120 0.0 S   irq/1-i8042   <br> 428 FF     80  - 120 0.0 S   irq/22-uhci_hcd   <br>  65 FF     79  - 119 0.0 S   irq/12-i8042   <br>  39 FF     50  - 90 0.0 S   irq/9-acpi   <br>  57 FF     50  - 90 0.0 S   irq/24-PCIe PME   <br>  58 FF     50  - 90 0.0 S   irq/25-PCIe PME   <br>  59 FF     50  - 90 0.0 S   irq/26-PCIe PME   <br>  60 FF     50  - 90 0.0 S   irq/27-PCIe PME   <br>  61 FF     50  - 90 0.0 S   irq/24-pciehp   <br>  62 FF     50  - 90 0.0 S   irq/25-pciehp   <br>  63 FF     50  - 90 0.0 S   irq/26-pciehp   <br>  64 FF     50  - 90 0.0 S   irq/27-pciehp   <br>  67 FF     50  - 90 0.0 S   irq/8-rtc0   <br> 105 FF     50  - 90 0.5 S   irq/14-ata_piix   <br> 106 FF     50  - 90 0.0 S   irq/15-ata_piix   <br> 408 FF     50  - 90 0.0 S   irq/28-mei_me   <br> 409 FF     50  - 90 0.0 S   irq/29-i915   <br> 418 FF     50  - 90 0.0 S   irq/17-rtl_pci   <br> 419 FF     50  - 90 0.0 S   irq/16-yenta   <br> 436 FF     50  - 90 0.0 S   irq/23-i801_smb   <br> 610 FF     50  - 90 0.0 S   irq/17-firewire   <br> 635 FF     50  - 90 0.0 S   irq/18-mmc0   <br> 640 FF     50  - 90 0.0 S   irq/18-r592   <br> 642 FF     50  - 90 0.0 S   irq/18-r852   <br> 1061 FF     50  - 90 0.0 S   irq/30-eth0   <br> 636 FF     49  - 89 0.0 S   irq/18-s-mmc0   <br>   3 TS      -  0 19 0.1 S   ksoftirqd/0   <br>  22 TS      -  0 19 0.1 S   ksoftirqd/1  <br><br></div><div>Let me know if sth could be tweaked.<br><br></div><div>best regards<br><br></div><div>mira <br> </div></div><br></div></div>