Cake max speeds

[baratrion]

I've seen this message in the original Cake thread here:

No. Enabling Cake maxes out speeds at 250-300Mbps before the CPU runs out of puff on any of the Asus routers.

Can people confirm if this is the case? I've seen other people claiming higher speeds with Merlin + Cake on Asus modems.

Would anyone recommend an Asus router that could cope with ~500Mbps and Cake?

 

[RMerlin]

I've seen this message in the original Cake thread here:



Can people confirm if this is the case? I've seen other people claiming higher speeds with Merlin + Cake on Asus modems.

Would anyone recommend an Asus router that could cope with ~500Mbps and Cake?

There isn`t any. My RT-AX88U can barely reach 400 Mbps with a single stream (so under a normal scenario with multiple connections it would not be able to keep up).

 

[BreakingDad]

I've seen this message in the original Cake thread here:



Can people confirm if this is the case? I've seen other people claiming higher speeds with Merlin + Cake on Asus modems.

Would anyone recommend an Asus router that could cope with ~500Mbps and Cake?

Why not use flex? I find it works like a dream at 500Mbps.

 

[SomeWhereOverTheRainBow]

There isn`t any. My RT-AX88U can barely reach 400 Mbps with a single stream (so under a normal scenario with multiple connections it would not be able to keep up).

Rmerlin is right on this one.

I've seen this message in the original Cake thread here:



Can people confirm if this is the case? I've seen other people claiming higher speeds with Merlin + Cake on Asus modems.

Would anyone recommend an Asus router that could cope with ~500Mbps and Cake?

Cake really relies on the capabilities of the CPU (and sometimes the kernal). On a RPI 4 running openwrt and Cake-SQM, I was able to run cake at 500 Mbps + with the manipulation of packet steering, but the CPU was firing at all pistons. I am not sure if such possibilities are available on Asus routers though. The CPU on most the routers serves a limited finite purpose which is basic router operations.

Just for giggles, if any one is interested in trying out the Receive Packet Steering manipulations here is an example.

Any body running Cake or FleX want to try these out, see if it helps.

echo 2 > /sys/class/net/eth1/queues/rx-0/rps_cpus
echo 1 > /sys/class/net/eth0/queues/rx-0/rps_cpus

#(interfaces may very adjust accordingly)
Here is mine on an RT-AX88U

/tmp/home/root# ls /sys/class/net/*/queues/*/rps_cpus
/sys/class/net/bcmsw/queues/rx-0/rps_cpus         /sys/class/net/bond0/queues/rx-8/rps_cpus         /sys/class/net/bond1/queues/rx-8/rps_cpus         /sys/class/net/imq2/queues/rx-0/rps_cpus
/sys/class/net/bcmswlpbk0/queues/rx-0/rps_cpus    /sys/class/net/bond0/queues/rx-9/rps_cpus         /sys/class/net/bond1/queues/rx-9/rps_cpus         /sys/class/net/ip6tnl0/queues/rx-0/rps_cpus
/sys/class/net/bond0/queues/rx-0/rps_cpus         /sys/class/net/bond1/queues/rx-0/rps_cpus         /sys/class/net/br0/queues/rx-0/rps_cpus           /sys/class/net/lo/queues/rx-0/rps_cpus
/sys/class/net/bond0/queues/rx-1/rps_cpus         /sys/class/net/bond1/queues/rx-1/rps_cpus         /sys/class/net/dpsta/queues/rx-0/rps_cpus         /sys/class/net/sit0/queues/rx-0/rps_cpus
/sys/class/net/bond0/queues/rx-10/rps_cpus        /sys/class/net/bond1/queues/rx-10/rps_cpus        /sys/class/net/eth0/queues/rx-0/rps_cpus          /sys/class/net/spu_ds_dummy/queues/rx-0/rps_cpus
/sys/class/net/bond0/queues/rx-11/rps_cpus        /sys/class/net/bond1/queues/rx-11/rps_cpus        /sys/class/net/eth1/queues/rx-0/rps_cpus          /sys/class/net/spu_us_dummy/queues/rx-0/rps_cpus
/sys/class/net/bond0/queues/rx-12/rps_cpus        /sys/class/net/bond1/queues/rx-12/rps_cpus        /sys/class/net/eth2/queues/rx-0/rps_cpus          /sys/class/net/tun21/queues/rx-0/rps_cpus
/sys/class/net/bond0/queues/rx-13/rps_cpus        /sys/class/net/bond1/queues/rx-13/rps_cpus        /sys/class/net/eth3/queues/rx-0/rps_cpus          /sys/class/net/tun22/queues/rx-0/rps_cpus
/sys/class/net/bond0/queues/rx-14/rps_cpus        /sys/class/net/bond1/queues/rx-14/rps_cpus        /sys/class/net/eth4/queues/rx-0/rps_cpus          /sys/class/net/wl0.1/queues/rx-0/rps_cpus
/sys/class/net/bond0/queues/rx-15/rps_cpus        /sys/class/net/bond1/queues/rx-15/rps_cpus        /sys/class/net/eth5/queues/rx-0/rps_cpus          /sys/class/net/wl0.2/queues/rx-0/rps_cpus
/sys/class/net/bond0/queues/rx-2/rps_cpus         /sys/class/net/bond1/queues/rx-2/rps_cpus         /sys/class/net/eth6/queues/rx-0/rps_cpus          /sys/class/net/wl0.3/queues/rx-0/rps_cpus
/sys/class/net/bond0/queues/rx-3/rps_cpus         /sys/class/net/bond1/queues/rx-3/rps_cpus         /sys/class/net/eth7/queues/rx-0/rps_cpus          /sys/class/net/wl1.1/queues/rx-0/rps_cpus
/sys/class/net/bond0/queues/rx-4/rps_cpus         /sys/class/net/bond1/queues/rx-4/rps_cpus         /sys/class/net/ifb0/queues/rx-0/rps_cpus          /sys/class/net/wl1.2/queues/rx-0/rps_cpus
/sys/class/net/bond0/queues/rx-5/rps_cpus         /sys/class/net/bond1/queues/rx-5/rps_cpus         /sys/class/net/ifb1/queues/rx-0/rps_cpus          /sys/class/net/wl1.3/queues/rx-0/rps_cpus
/sys/class/net/bond0/queues/rx-6/rps_cpus         /sys/class/net/bond1/queues/rx-6/rps_cpus         /sys/class/net/imq0/queues/rx-0/rps_cpus
/sys/class/net/bond0/queues/rx-7/rps_cpus         /sys/class/net/bond1/queues/rx-7/rps_cpus         /sys/class/net/imq1/queues/rx-0/rps_cpus

/tmp/home/root# cat /sys/class/net/*/queues/rx-0/rps_cpus
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Here is a very interesting read on the topic

SUSE Customer Portal

www.suse.com

 

[SomeWhereOverTheRainBow]

Why not use flex? I find it works like a dream at 500Mbps.

At this moment FlexQoS is the best option, though the router CPU puts out alot of CPU load once you get in the 600 ranges.

 

[minhgi]

I think any quad core Asus router should be able to handle 500mbps+ cakeQOS. Anymore than that, switch over to Flex. At less we have option to maximize output from ISP.

 

[Wade Coxon]

I think any quad core Asus router should be able to handle 500mbps+ cakeQOS. Anymore than that, switch over to Flex. At less we have option to maximize output from ISP.

The number of cores is not relevant as cake is single threaded. None will get close to 500Mbps.
Core type and MHz is what counts.

 

[minhgi]

gotcha. I have AX11000. That could the reason.

 

[heysoundude]

Here is a very interesting read on the topic

SUSE Customer Portal

www.suse.com

maybe I'm not grokking that correctly, but wouldn't "load balancing" across the processors of our routers require a number of instances of QoS, and then being coordinated?
is one of the benefits of engaging that sidestepping the hardware acceleration restrictions?

 

[SomeWhereOverTheRainBow]

maybe I'm not grokking that correctly, but wouldn't "load balancing" across the processors of our routers require a number of instances of QoS, and then being coordinated?
is one of the benefits of engaging that sidestepping the hardware acceleration restrictions?

Well with cake qos, hardware acceleration is already removed from the equation, so one must try other means or explore other avenues to remove the load off the cpu (i.e. the load imposed by cake qos). If that can be achieved, maybe cake qos can work with higher speeds. All the rps would be doing is taking packets and sending it to a cpu core designated for that specific marked traffic, this ensure that no one thread suffers the burden of directing all the traffic.