Latency, error finishing read, and IRQ affinity

Mecanix
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14 Feb 2024 06:39 - 14 Feb 2024 06:40 #293298 by Mecanix

Replied by Mecanix on topic Latency, error finishing read, and IRQ affinity

hmnijp wrote:

mozmck wrote:
quotes seem to be missing here?

Remove the last quote.
exit 0"

Last edit: 14 Feb 2024 06:40 by Mecanix.

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Ekholm
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14 Feb 2024 07:12 #293299 by Ekholm

Replied by Ekholm on topic Latency, error finishing read, and IRQ affinity

Thanks!

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mozmck
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29 Feb 2024 20:24 #294798 by mozmck

Replied by mozmck on topic Latency, error finishing read, and IRQ affinity

I just moved an updated rt_setup.sh script to the first post in this thread. It detects if irqbalance is running or not and sets things up properly either way. BTW, dual-core cpus are not completely obsolete - I have fairly recent Shuttle mini-pc's with dual-core processors that definitely benefit from having the IRQ affinities set up properly.

The following user(s) said Thank You: seuchato, mariusl, tommylight, JT, vally72, ago_tm

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lrak
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07 Apr 2024 18:56 #297761 by lrak

Replied by lrak on topic Latency, error finishing read, and IRQ affinity

What is supposed to end up in NIC? (I've got two interfaces - not fluent in awk ).. Is the 10.10.10.1 supposed to be the MESA card address?NIC=`awk 'BEGIN{nic=""} {if ($1=="iface") {tmpnic = $2} if ($1=="address") {if ($2 == 10.10.10.1) {nic = tmpnic}}} END{print(nic)}' /etc/network/interfaces`

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PCW
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07 Apr 2024 19:38 #297764 by PCW

Replied by PCW on topic Latency, error finishing read, and IRQ affinity

The IP address in the script should match the real IP address of the host device connected to the Mesa card

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zmrdko
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13 Apr 2024 23:10 #298207 by zmrdko

Replied by zmrdko on topic Latency, error finishing read, and IRQ affinity

Hi, awsome script! Definitely fixes latency issues.
However, I am trying to utilize this with EtherCAT master and I am getting error

irqbalance is running AND there are more than 2 cpus - setting up policy script sed: can't read /etc/rc.local: No such file or directory

I would guess it has to do something with NIC IP address not being 10.10.10.1

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tommylight
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13 Apr 2024 23:26 - 13 Apr 2024 23:28 #298208 by tommylight

Replied by tommylight on topic Latency, error finishing read, and IRQ affinity

Nope, some new Linux Distros do not use rc.local, so do a search for the distro you are suing and how to add it, then run the script again.
Edit,
Left hand seems faster that right one, USING, should be using, not suing above!

Last edit: 13 Apr 2024 23:28 by tommylight. Reason: Typo

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jg00163206
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19 Apr 2024 19:05 #298658 by jg00163206

Replied by jg00163206 on topic Latency, error finishing read, and IRQ affinity

i am stuck on the irqblance part in the instructions of that link. i created the files but i am not certain what to do from there. when i run: sudo ./rt_setup.sh, command not found. i created both files and make them exicutable and restarted and when i run: sudo ./rt_setup.sh. what to do after that. i am missing something something.

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jg00163206
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20 Apr 2024 00:49 #298694 by jg00163206

Replied by jg00163206 on topic Latency, error finishing read, and IRQ affinity

i think i have it. maybe if i took the time to read the entire thread, i might find the information i am looking for. thanks

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jg00163206
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20 Apr 2024 03:34 #298696 by jg00163206

Replied by jg00163206 on topic Latency, error finishing read, and IRQ affinity

i guess i dont have this figured out. i keep getting command not found when i run sudo ./rt_setup.sh. i know i have to do something to the file but i can't figure out what to do to make it not give me the error on exit error. please help me out

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