Nighthawk X10 (R9000)

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msoengineer
DD-WRT Guru


Joined: 21 Jan 2017
Posts: 1126
Location: Illinois Moderator

PostPosted: Wed Jun 05, 2019 16:25    Post subject: Reply with quote
Ok, Took the plunge...

Before setting/locking the cores:
Wifi: https://www.dslreports.com/speedtest/50511583
LAN: https://www.dslreports.com/speedtest/49997096

After running the code below:
Wifi: https://www.dslreports.com/speedtest/50512405
Lan: https://www.dslreports.com/speedtest/50513055
(This code fixed my shittastic LAN performance I've been bitching about since I bought the R9000 over a year ago!)

Code:
echo 4 > /proc/irq/240/smp_affinity
echo 8 > /proc/irq/241/smp_affinity

echo 1 > /proc/irq/252/smp_affinity
echo 1 > /proc/irq/253/smp_affinity
echo 1 > /proc/irq/254/smp_affinity
echo 1 > /proc/irq/255/smp_affinity
echo 1 > /proc/irq/256/smp_affinity
echo 1 > /proc/irq/257/smp_affinity
echo 1 > /proc/irq/258/smp_affinity
echo 1 > /proc/irq/259/smp_affinity
echo 1 > /proc/irq/260/smp_affinity

echo 2 > /proc/irq/243/smp_affinity
echo 2 > /proc/irq/244/smp_affinity
echo 2 > /proc/irq/245/smp_affinity
echo 2 > /proc/irq/246/smp_affinity
echo 2 > /proc/irq/247/smp_affinity
echo 2 > /proc/irq/248/smp_affinity
echo 2 > /proc/irq/249/smp_affinity
echo 2 > /proc/irq/250/smp_affinity
echo 2 > /proc/irq/251/smp_affinity


She runs fine with the above code.
When BS releases 39953+ The first two code lines can go away. (IRQ 240 & 241)

The above code puts Wan on Core 0, Lan on Core 1, 5ghz on Core 2, and 2.4ghz on Core 3. I am not using 802.11AD and so I assume the default is that it's on Core 0. It shouldn't affect anything.

The default code is that WAN and Lan are "balanced" across the 4 cores, but when you look at cat /proc/interrupts you will see that there is a slight imbalance between cores.

I'll let her run with the above code until BS pushes out the next build and report back. I don't imagine any issues.

EDIT
So, as of build 39957 you don't need to do any of the above. BS implemented the changes as of build 39957+

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kernel-panic69
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Joined: 08 May 2018
Posts: 6902
Location: Texas, USA

PostPosted: Tue Apr 21, 2020 19:47    Post subject: Reply with quote
This post has been locked to archive historical information. Please report successes and issues in the build threads. Please open a NEW thread to discuss issues. For VLAN discussions, there is another thread that has been made a sticky: https://forum.dd-wrt.com/phpBB2/viewtopic.php?t=322349

There are also OTHER topics regarding VLAN tagging for various ISP configurations. Use them. This thread is not going to balloon into 200 pages, that would be a disservice to the community. I will be breaking this thread into appropriate topics as I have time to make finding information easier on the community. Thank you for understanding.

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